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Author SHA1 Message Date
Beman Dawes
950ed457cd Branch at revision 46530
[SVN r46531]
2008-06-19 18:57:10 +00:00
106 changed files with 926 additions and 2332 deletions

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@@ -3,9 +3,7 @@
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
import os ;
import indirect ;
import modules ;
import feature ;
import python ;
@@ -24,121 +22,73 @@ if ! [ python.configured ] && ! ( --without-python in [ modules.peek : ARGV ] )
}
}
rule find-py3-version
{
local versions = [ feature.values python ] ;
local py3ver ;
for local v in $(versions)
{
if $(v) >= 3.0
{
py3ver = $(v) ;
}
}
return $(py3ver) ;
}
py3-version = [ find-py3-version ] ;
project boost/python
: source-location ../src
: requirements
-<tag>@$(BOOST_JAMROOT_MODULE)%$(BOOST_JAMROOT_MODULE).tag
<tag>@$(__name__).tag
;
rule tag ( name : type ? : property-set )
{
local result = $(name) ;
if $(type) in STATIC_LIB SHARED_LIB IMPORT_LIB
{
if $(name) = boost_python && $(PYTHON_ID)
{
result = $(result)-$(PYTHON_ID) ;
}
}
# forward to the boost tagging rule
return [ indirect.call $(BOOST_JAMROOT_MODULE)%$(BOOST_JAMROOT_MODULE).tag
$(result) : $(type) : $(property-set) ] ;
}
rule cond ( test ? : yes * : no * ) { if $(test) { return $(yes) ; } else { return $(no) ; } }
rule unless ( test ? : yes * : no * ) { if ! $(test) { return $(yes) ; } else { return $(no) ; } }
rule lib_boost_python ( is-py3 ? )
{
lib boost_python
: # sources
numeric.cpp
list.cpp
long.cpp
dict.cpp
tuple.cpp
str.cpp
slice.cpp
lib [ cond $(is-py3) : boost_python3 : boost_python ]
: # sources
numeric.cpp
list.cpp
long.cpp
dict.cpp
tuple.cpp
str.cpp
slice.cpp
converter/from_python.cpp
converter/registry.cpp
converter/type_id.cpp
object/enum.cpp
object/class.cpp
object/function.cpp
object/inheritance.cpp
object/life_support.cpp
object/pickle_support.cpp
errors.cpp
module.cpp
converter/builtin_converters.cpp
converter/arg_to_python_base.cpp
object/iterator.cpp
object/stl_iterator.cpp
object_protocol.cpp
object_operators.cpp
wrapper.cpp
import.cpp
exec.cpp
object/function_doc_signature.cpp
: # requirements
<link>static:<define>BOOST_PYTHON_STATIC_LIB
<define>BOOST_PYTHON_SOURCE
# On Windows, all code using Python has to link to the Python
# import library.
#
# On *nix we never link libboost_python to libpython. When
# extending Python, all Python symbols are provided by the
# Python interpreter executable. When embedding Python, the
# client executable is expected to explicitly link to
# /python//python (the target representing libpython) itself.
#
# python_for_extensions is a target defined by Boost.Build to
# provide the Python include paths, and on Windows, the Python
# import library, as usage requirements.
[ cond [ python.configured ] : <library>/python//python_for_extensions ]
# we prevent building when there is no python available
# as it's not possible anyway, and to cause dependents to
# fail to build
[ unless [ python.configured ] : <build>no ]
converter/from_python.cpp
converter/registry.cpp
converter/type_id.cpp
object/enum.cpp
object/class.cpp
object/function.cpp
object/inheritance.cpp
object/life_support.cpp
object/pickle_support.cpp
errors.cpp
module.cpp
converter/builtin_converters.cpp
converter/arg_to_python_base.cpp
object/iterator.cpp
object/stl_iterator.cpp
object_protocol.cpp
object_operators.cpp
wrapper.cpp
import.cpp
exec.cpp
object/function_doc_signature.cpp
: # requirements
<link>static:<define>BOOST_PYTHON_STATIC_LIB
<define>BOOST_PYTHON_SOURCE
# On Windows, all code using Python has to link to the Python
# import library.
#
# On *nix we never link libboost_python to libpython. When
# extending Python, all Python symbols are provided by the
# Python interpreter executable. When embedding Python, the
# client executable is expected to explicitly link to
# /python//python (the target representing libpython) itself.
#
# python_for_extensions is a target defined by Boost.Build to
# provide the Python include paths, and on Windows, the Python
# import library, as usage requirements.
[ cond [ python.configured ] : <library>/python//python_for_extensions ]
# we prevent building when there is no python available
# as it's not possible anyway, and to cause dependents to
# fail to build
[ unless [ python.configured ] : <build>no ]
<python-debugging>on:<define>BOOST_DEBUG_PYTHON
: # default build
<link>shared
: # usage requirements
<link>static:<define>BOOST_PYTHON_STATIC_LIB
<python-debugging>on:<define>BOOST_DEBUG_PYTHON
;
<python-debugging>on:<define>BOOST_DEBUG_PYTHON
[ cond $(is-py3) : <python>$(py3-version) ]
: # default build
<link>shared
: # usage requirements
<link>static:<define>BOOST_PYTHON_STATIC_LIB
<python-debugging>on:<define>BOOST_DEBUG_PYTHON
;
}
lib_boost_python ;
boost-install boost_python ;
if $(py3-version)
{
lib_boost_python yes ;
boost-install boost_python3 ;
}

View File

@@ -9,7 +9,7 @@
</head>
<body>
<div class="document" id="logo-boost-python-build-and-test-howto">
<h1 class="title"><a class="reference external" href="../index.html"><img alt="Boost C++ Libraries:" class="boost-logo" src="../../../boost.png" /></a> Boost.Python Build and Test HOWTO</h1>
<h1 class="title"><a class="reference external" href="../index.htm"><img alt="Boost C++ Libraries:" class="boost-logo" src="../../../boost.png" /></a> Boost.Python Build and Test HOWTO</h1>
<!-- Copyright David Abrahams 2006. Distributed under the Boost -->
<!-- Software License, Version 1.0. (See accompanying -->

View File

@@ -32,43 +32,7 @@
<hr>
<dl class="page-index">
<dt>Current SVN</dt>
<dd>
<ul>
<li>Python 3 support:</li>
<ul>
<li>All the current Boost.Python test cases passed. Extension modules using
Boost.Python expected to support Python 3 smoothly.</li>
<li>Introduced <code>object.contains</code> where <code>x.contains(y)</code>
is equivalent to Python code <code>y in x</code>.
Now <code>dict.has_key</code> is just a wrapper of <code>object.contains</code>.
</li>
<li>When building against Python 3, <code>str.decode</code> will be removed.</li>
<li>When building against Python 3, the original signature of <code>list.sort</code>, which is:
<pre>void sort(object_cref cmpfunc);</pre>
will change to:
<pre>void sort(args_proxy const &args, kwds_proxy const &kwds);</pre>
This is because in Python 3 <code>list.sort</code> requires all its arguments be keyword arguments.
So you should call it like this:
<pre>x.sort(*tuple(), **dict(make_tuple(make_tuple("reverse", true))));</pre>
</li>
<li>According to <a href="http://www.python.org/dev/peps/pep-3123/">PEP 3123</a>,
when building Boost.Python against Python older than 2.6, the following macros will
be defined in Boost.Python header:
<pre>
# define Py_TYPE(o) (((PyObject*)(o))->ob_type)
# define Py_REFCNT(o) (((PyObject*)(o))->ob_refcnt)
# define Py_SIZE(o) (((PyVarObject*)(o))->ob_size)</pre>
So extension writers can use these macro directly, to make code clean and compatible with Python 3.
</li>
</ul>
</ul>
</dd>
<dt>1.39.0 Release</dt>
<dd>
<ul>

View File

@@ -6,8 +6,6 @@ project boost/libs/python/doc/tutorial/doc ;
import boostbook : boostbook ;
using quickbook ;
path-constant images : html ;
boostbook tutorial
:
tutorial.qbk
@@ -15,6 +13,4 @@ boostbook tutorial
<xsl:param>boost.root=../../../../../..
<xsl:param>boost.libraries=../../../../../../libs/libraries.htm
<xsl:param>html.stylesheet=../../../../../../doc/html/boostbook.css
<format>pdf:<xsl:param>img.src.path=$(images)/
<format>pdf:<xsl:param>boost.url.prefix=http://www.boost.org/doc/libs/release/libs/python/doc/tutorial/doc/html
;

View File

@@ -1,7 +1,7 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Chapter 1. python 2.0</title>
<title>Chapter 1. python 1.0</title>
<link rel="stylesheet" href="../../../../../../doc/html/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="index.html" title="Chapter 1. python 1.0">
@@ -10,10 +10,10 @@
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td>
<td align="center"><a href="../../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../../index.htm">Home</a></td>
<td align="center"><a href="../../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../../people/people.htm">People</a></td>
<td align="center"><a href="../../../../../../more/faq.htm">FAQ</a></td>
<td align="center"><a href="../../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
@@ -31,7 +31,7 @@
<div><p class="copyright">Copyright © 2002-2005 Joel
de Guzman, David Abrahams</p></div>
<div><div class="legalnotice">
<a name="id457106"></a><p>
<a name="id455917"></a><p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">
http://www.boost.org/LICENSE_1_0.txt </a>)
@@ -94,14 +94,15 @@
(IDL).
</p>
<a name="quickstart.hello_world"></a><h2>
<a name="id386707"></a>
<a name="id385257"></a>
Hello World
</h2>
<p>
Following C/C++ tradition, let's start with the "hello, world". A
C++ Function:
</p>
<pre class="programlisting"><span class="keyword">char</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">greet</span><span class="special">()</span>
<pre class="programlisting">
<span class="keyword">char</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">greet</span><span class="special">()</span>
<span class="special">{</span>
<span class="keyword">return</span> <span class="string">"hello, world"</span><span class="special">;</span>
<span class="special">}</span>
@@ -109,7 +110,8 @@
<p>
can be exposed to Python by writing a Boost.Python wrapper:
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">python</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">python</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="identifier">BOOST_PYTHON_MODULE</span><span class="special">(</span><span class="identifier">hello_ext</span><span class="special">)</span>
<span class="special">{</span>
@@ -123,7 +125,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">hello_ext</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">hello_ext</span>
<span class="special">&gt;&gt;&gt;</span> <span class="keyword">print</span> <span class="identifier">hello</span><span class="special">.</span><span class="identifier">greet</span><span class="special">()</span>
<span class="identifier">hello</span><span class="special">,</span> <span class="identifier">world</span>
</pre>
@@ -142,7 +145,7 @@
</div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"><p><small>Last revised: November 22, 2008 at 03:24:11 GMT</small></p></td>
<td align="left"><p><small>Last revised: November 07, 2007 at 03:34:24 GMT</small></p></td>
<td align="right"><div class="copyright-footer"></div></td>
</tr></table>
<hr>

View File

@@ -12,10 +12,10 @@
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td>
<td align="center"><a href="../../../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../../../index.htm">Home</a></td>
<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../../../people/people.htm">People</a></td>
<td align="center"><a href="../../../../../../../more/faq.htm">FAQ</a></td>
<td align="center"><a href="../../../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
@@ -40,7 +40,7 @@
Python/C API at all. So stay tuned... <span class="inlinemediaobject"><img src="../images/smiley.png" alt="smiley"></span>
</p>
<a name="embedding.building_embedded_programs"></a><h2>
<a name="id472330"></a>
<a name="id471171"></a>
Building embedded programs
</h2>
<p>
@@ -82,7 +82,7 @@ exe embedded_program # name of the executable
&lt;find-library&gt;$(PYTHON_EMBEDDED_LIBRARY) ;
</pre>
<a name="embedding.getting_started"></a><h2>
<a name="id472435"></a>
<a name="id471276"></a>
Getting started
</h2>
<p>
@@ -130,22 +130,23 @@ exe embedded_program # name of the executable
<a name="python.using_the_interpreter"></a>Using the interpreter</h3></div></div></div>
<p>
As you probably already know, objects in Python are reference-counted. Naturally,
the <tt class="literal">PyObject</tt>s of the Python C API are also reference-counted.
the <tt class="literal">PyObject</tt>s of the Python/C API are also reference-counted.
There is a difference however. While the reference-counting is fully automatic
in Python, the Python C API requires you to do it <a href="http://www.python.org/doc/current/c-api/refcounting.html" target="_top">by
hand</a>. This is messy and especially hard to get right in the presence
in Python, the Python<span class="emphasis"><em>C API requires you to do it [@http:</em></span>/www.python.org/doc/current/api/refcounts.html
by hand]. This is messy and especially hard to get right in the presence
of C++ exceptions. Fortunately Boost.Python provides the <a href="../../../../v2/handle.html" target="_top">handle</a>
and <a href="../../../../v2/object.html" target="_top">object</a> class templates to
automate the process.
</p>
<a name="using_the_interpreter.running_python_code"></a><h2>
<a name="id472601"></a>
<a name="id471439"></a>
Running Python code
</h2>
<p>
Boost.python provides three related functions to run Python code from C++.
</p>
<pre class="programlisting"><span class="identifier">object</span> <span class="identifier">eval</span><span class="special">(</span><span class="identifier">str</span> <span class="identifier">expression</span><span class="special">,</span> <span class="identifier">object</span> <span class="identifier">globals</span> <span class="special">=</span> <span class="identifier">object</span><span class="special">(),</span> <span class="identifier">object</span> <span class="identifier">locals</span> <span class="special">=</span> <span class="identifier">object</span><span class="special">())</span>
<pre class="programlisting">
<span class="identifier">object</span> <span class="identifier">eval</span><span class="special">(</span><span class="identifier">str</span> <span class="identifier">expression</span><span class="special">,</span> <span class="identifier">object</span> <span class="identifier">globals</span> <span class="special">=</span> <span class="identifier">object</span><span class="special">(),</span> <span class="identifier">object</span> <span class="identifier">locals</span> <span class="special">=</span> <span class="identifier">object</span><span class="special">())</span>
<span class="identifier">object</span> <span class="identifier">exec</span><span class="special">(</span><span class="identifier">str</span> <span class="identifier">code</span><span class="special">,</span> <span class="identifier">object</span> <span class="identifier">globals</span> <span class="special">=</span> <span class="identifier">object</span><span class="special">(),</span> <span class="identifier">object</span> <span class="identifier">locals</span> <span class="special">=</span> <span class="identifier">object</span><span class="special">())</span>
<span class="identifier">object</span> <span class="identifier">exec_file</span><span class="special">(</span><span class="identifier">str</span> <span class="identifier">filename</span><span class="special">,</span> <span class="identifier">object</span> <span class="identifier">globals</span> <span class="special">=</span> <span class="identifier">object</span><span class="special">(),</span> <span class="identifier">object</span> <span class="identifier">locals</span> <span class="special">=</span> <span class="identifier">object</span><span class="special">())</span>
</pre>
@@ -164,7 +165,8 @@ exe embedded_program # name of the executable
<p>
Boost.python provides a function to import a module:
</p>
<pre class="programlisting"><span class="identifier">object</span> <span class="identifier">import</span><span class="special">(</span><span class="identifier">str</span> <span class="identifier">name</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">object</span> <span class="identifier">import</span><span class="special">(</span><span class="identifier">str</span> <span class="identifier">name</span><span class="special">)</span>
</pre>
<p>
import imports a python module (potentially loading it into the running process
@@ -174,7 +176,8 @@ exe embedded_program # name of the executable
Let's import the <tt class="literal"><span class="underline">_main</span>_</tt>
module and run some Python code in its namespace:
</p>
<pre class="programlisting"><span class="identifier">object</span> <span class="identifier">main_module</span> <span class="special">=</span> <span class="identifier">import</span><span class="special">(</span><span class="string">"__main__"</span><span class="special">);</span>
<pre class="programlisting">
<span class="identifier">object</span> <span class="identifier">main_module</span> <span class="special">=</span> <span class="identifier">import</span><span class="special">(</span><span class="string">"__main__"</span><span class="special">);</span>
<span class="identifier">object</span> <span class="identifier">main_namespace</span> <span class="special">=</span> <span class="identifier">main_module</span><span class="special">.</span><span class="identifier">attr</span><span class="special">(</span><span class="string">"__dict__"</span><span class="special">);</span>
<span class="identifier">object</span> <span class="identifier">ignored</span> <span class="special">=</span> <span class="identifier">exec</span><span class="special">(</span><span class="string">"hello = file('hello.txt', 'w')\n"</span>
@@ -187,7 +190,7 @@ exe embedded_program # name of the executable
a phrase that is well-known in programming circles.
</p>
<a name="using_the_interpreter.manipulating_python_objects"></a><h2>
<a name="id473185"></a>
<a name="id472027"></a>
Manipulating Python objects
</h2>
<p>
@@ -197,7 +200,8 @@ exe embedded_program # name of the executable
derivatives. We've already seen that they can be constructed from a <tt class="literal">handle</tt>.
The following examples should further illustrate this fact:
</p>
<pre class="programlisting"><span class="identifier">object</span> <span class="identifier">main_module</span> <span class="special">=</span> <span class="identifier">import</span><span class="special">(</span><span class="string">"__main__"</span><span class="special">);</span>
<pre class="programlisting">
<span class="identifier">object</span> <span class="identifier">main_module</span> <span class="special">=</span> <span class="identifier">import</span><span class="special">(</span><span class="string">"__main__"</span><span class="special">);</span>
<span class="identifier">object</span> <span class="identifier">main_namespace</span> <span class="special">=</span> <span class="identifier">main_module</span><span class="special">.</span><span class="identifier">attr</span><span class="special">(</span><span class="string">"__dict__"</span><span class="special">);</span>
<span class="identifier">object</span> <span class="identifier">ignored</span> <span class="special">=</span> <span class="identifier">exec</span><span class="special">(</span><span class="string">"result = 5 ** 2"</span><span class="special">,</span> <span class="identifier">main_namespace</span><span class="special">);</span>
<span class="keyword">int</span> <span class="identifier">five_squared</span> <span class="special">=</span> <span class="identifier">extract</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;(</span><span class="identifier">main_namespace</span><span class="special">[</span><span class="string">"result"</span><span class="special">]);</span>
@@ -208,18 +212,20 @@ exe embedded_program # name of the executable
this variable from the dictionary. Another way to achieve the same result
is to use eval instead, which returns the result directly:
</p>
<pre class="programlisting"><span class="identifier">object</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">eval</span><span class="special">(</span><span class="string">"5 ** 2"</span><span class="special">);</span>
<pre class="programlisting">
<span class="identifier">object</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">eval</span><span class="special">(</span><span class="string">"5 ** 2"</span><span class="special">);</span>
<span class="keyword">int</span> <span class="identifier">five_squared</span> <span class="special">=</span> <span class="identifier">extract</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;(</span><span class="identifier">result</span><span class="special">);</span>
</pre>
<a name="using_the_interpreter.exception_handling"></a><h2>
<a name="id473554"></a>
<a name="id472399"></a>
Exception handling
</h2>
<p>
If an exception occurs in the evaluation of the python expression, <a href="../../../../v2/errors.html#error_already_set-spec" target="_top">error_already_set</a>
is thrown:
</p>
<pre class="programlisting"><span class="keyword">try</span>
<pre class="programlisting">
<span class="keyword">try</span>
<span class="special">{</span>
<span class="identifier">object</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">eval</span><span class="special">(</span><span class="string">"5/0"</span><span class="special">);</span>
<span class="comment">// execution will never get here:
@@ -234,13 +240,14 @@ exe embedded_program # name of the executable
The <tt class="literal">error_already_set</tt> exception class doesn't carry any
information in itself. To find out more about the Python exception that occurred,
you need to use the <a href="http://www.python.org/doc/api/exceptionHandling.html" target="_top">exception
handling functions</a> of the Python C API in your catch-statement. This
can be as simple as calling <a href="http://www.python.org/doc/api/exceptionHandling.html#l2h-70" target="_top">PyErr_Print()</a>
to print the exception's traceback to the console, or comparing the type
of the exception with those of the <a href="http://www.python.org/doc/api/standardExceptions.html" target="_top">standard
handling functions</a> of the Python<span class="emphasis"><em>C API in your catch-statement.
This can be as simple as calling [@http:</em></span>/www.python.org/doc/api/exceptionHandling.html#l2h-70
PyErr_Print()] to print the exception's traceback to the console, or comparing
the type of the exception with those of the <a href="http://www.python.org/doc/api/standardExceptions.html" target="_top">standard
exceptions</a>:
</p>
<pre class="programlisting"><span class="keyword">catch</span><span class="special">(</span><span class="identifier">error_already_set</span> <span class="keyword">const</span> <span class="special">&amp;)</span>
<pre class="programlisting">
<span class="keyword">catch</span><span class="special">(</span><span class="identifier">error_already_set</span> <span class="keyword">const</span> <span class="special">&amp;)</span>
<span class="special">{</span>
<span class="keyword">if</span> <span class="special">(</span><span class="identifier">PyErr_ExceptionMatches</span><span class="special">(</span><span class="identifier">PyExc_ZeroDivisionError</span><span class="special">))</span>
<span class="special">{</span>

View File

@@ -12,10 +12,10 @@
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td>
<td align="center"><a href="../../../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../../../index.htm">Home</a></td>
<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../../../people/people.htm">People</a></td>
<td align="center"><a href="../../../../../../../more/faq.htm">FAQ</a></td>
<td align="center"><a href="../../../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
@@ -30,12 +30,14 @@
is the point where C++ meets Python. Boost.Python provides a default exception
handler that translates selected standard exceptions, then gives up:
</p>
<pre class="programlisting"><span class="keyword">raise</span> <span class="identifier">RuntimeError</span><span class="special">,</span> <span class="string">'unidentifiable C++ Exception'</span>
<pre class="programlisting">
<span class="keyword">raise</span> <span class="identifier">RuntimeError</span><span class="special">,</span> <span class="string">'unidentifiable C++ Exception'</span>
</pre>
<p>
Users may provide custom translation. Here's an example:
</p>
<pre class="programlisting"><span class="identifier">struct</span> <span class="identifier">PodBayDoorException</span><span class="special">;</span>
<pre class="programlisting">
<span class="identifier">struct</span> <span class="identifier">PodBayDoorException</span><span class="special">;</span>
<span class="identifier">void</span> <span class="identifier">translator</span><span class="special">(</span><span class="identifier">PodBayDoorException</span> <span class="identifier">const</span><span class="special">&amp;</span> <span class="identifier">x</span><span class="special">)</span> <span class="special">{</span>
<span class="identifier">PyErr_SetString</span><span class="special">(</span><span class="identifier">PyExc_UserWarning</span><span class="special">,</span> <span class="string">"I'm sorry Dave..."</span><span class="special">);</span>
<span class="special">}</span>

View File

@@ -12,10 +12,10 @@
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td>
<td align="center"><a href="../../../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../../../index.htm">Home</a></td>
<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../../../people/people.htm">People</a></td>
<td align="center"><a href="../../../../../../../more/faq.htm">FAQ</a></td>
<td align="center"><a href="../../../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
@@ -40,7 +40,8 @@
<p>
Consider a C++ class/struct that we want to expose to Python:
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">World</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">World</span>
<span class="special">{</span>
<span class="keyword">void</span> <span class="identifier">set</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">msg</span><span class="special">)</span> <span class="special">{</span> <span class="keyword">this</span><span class="special">-&gt;</span><span class="identifier">msg</span> <span class="special">=</span> <span class="identifier">msg</span><span class="special">;</span> <span class="special">}</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">greet</span><span class="special">()</span> <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">msg</span><span class="special">;</span> <span class="special">}</span>
@@ -50,7 +51,8 @@
<p>
We can expose this to Python by writing a corresponding Boost.Python C++ Wrapper:
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">python</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">python</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">python</span><span class="special">;</span>
<span class="identifier">BOOST_PYTHON_MODULE</span><span class="special">(</span><span class="identifier">hello</span><span class="special">)</span>
@@ -69,7 +71,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">hello</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">hello</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">planet</span> <span class="special">=</span> <span class="identifier">hello</span><span class="special">.</span><span class="identifier">World</span><span class="special">()</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">planet</span><span class="special">.</span><span class="identifier">set</span><span class="special">(</span><span class="string">'howdy'</span><span class="special">)</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">planet</span><span class="special">.</span><span class="identifier">greet</span><span class="special">()</span>
@@ -84,7 +87,8 @@
exposes the default constructor by default, which is why we were able to
write
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="identifier">planet</span> <span class="special">=</span> <span class="identifier">hello</span><span class="special">.</span><span class="identifier">World</span><span class="special">()</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">planet</span> <span class="special">=</span> <span class="identifier">hello</span><span class="special">.</span><span class="identifier">World</span><span class="special">()</span>
</pre>
<p>
We may wish to wrap a class with a non-default constructor. Let us build
@@ -92,7 +96,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">World</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">World</span>
<span class="special">{</span>
<span class="identifier">World</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">msg</span><span class="special">):</span> <span class="identifier">msg</span><span class="special">(</span><span class="identifier">msg</span><span class="special">)</span> <span class="special">{}</span> <span class="comment">// added constructor
</span> <span class="keyword">void</span> <span class="identifier">set</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">msg</span><span class="special">)</span> <span class="special">{</span> <span class="keyword">this</span><span class="special">-&gt;</span><span class="identifier">msg</span> <span class="special">=</span> <span class="identifier">msg</span><span class="special">;</span> <span class="special">}</span>
@@ -106,7 +111,8 @@
We have to tell <tt class="literal">class_&lt;World&gt;</tt> about the constructor
we want to expose instead.
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">python</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">python</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">python</span><span class="special">;</span>
<span class="identifier">BOOST_PYTHON_MODULE</span><span class="special">(</span><span class="identifier">hello</span><span class="special">)</span>
@@ -127,7 +133,8 @@
to the <tt class="literal">def()</tt> member function. Say for example we have
another World constructor taking in two doubles:
</p>
<pre class="programlisting"><span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">World</span><span class="special">&gt;(</span><span class="string">"World"</span><span class="special">,</span> <span class="identifier">init</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;())</span>
<pre class="programlisting">
<span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">World</span><span class="special">&gt;(</span><span class="string">"World"</span><span class="special">,</span> <span class="identifier">init</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;())</span>
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="identifier">init</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">,</span> <span class="keyword">double</span><span class="special">&gt;())</span>
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"greet"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">World</span><span class="special">::</span><span class="identifier">greet</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"set"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">World</span><span class="special">::</span><span class="identifier">set</span><span class="special">)</span>
@@ -137,7 +144,8 @@
On the other hand, if we do not wish to expose any constructors at all, we
may use <tt class="literal">no_init</tt> instead:
</p>
<pre class="programlisting"><span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">Abstract</span><span class="special">&gt;(</span><span class="string">"Abstract"</span><span class="special">,</span> <span class="identifier">no_init</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">Abstract</span><span class="special">&gt;(</span><span class="string">"Abstract"</span><span class="special">,</span> <span class="identifier">no_init</span><span class="special">)</span>
</pre>
<p>
This actually adds an <tt class="literal"><span class="underline">_init</span>_</tt>
@@ -153,7 +161,8 @@
to be exposed may be regarded as <span class="bold"><b>read-only</b></span>
or <span class="bold"><b>read-write</b></span>. Consider this class <tt class="literal">Var</tt>:
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">Var</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">Var</span>
<span class="special">{</span>
<span class="identifier">Var</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">name</span><span class="special">)</span> <span class="special">:</span> <span class="identifier">name</span><span class="special">(</span><span class="identifier">name</span><span class="special">),</span> <span class="identifier">value</span><span class="special">()</span> <span class="special">{}</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span> <span class="identifier">name</span><span class="special">;</span>
@@ -164,7 +173,8 @@
Our C++ <tt class="literal">Var</tt> class and its data members can be exposed
to Python:
</p>
<pre class="programlisting"><span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">Var</span><span class="special">&gt;(</span><span class="string">"Var"</span><span class="special">,</span> <span class="identifier">init</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;())</span>
<pre class="programlisting">
<span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">Var</span><span class="special">&gt;(</span><span class="string">"Var"</span><span class="special">,</span> <span class="identifier">init</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;())</span>
<span class="special">.</span><span class="identifier">def_readonly</span><span class="special">(</span><span class="string">"name"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">Var</span><span class="special">::</span><span class="identifier">name</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">def_readwrite</span><span class="special">(</span><span class="string">"value"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">Var</span><span class="special">::</span><span class="identifier">value</span><span class="special">);</span>
</pre>
@@ -174,7 +184,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span> <span class="special">=</span> <span class="identifier">hello</span><span class="special">.</span><span class="identifier">Var</span><span class="special">(</span><span class="string">'pi'</span><span class="special">)</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span> <span class="special">=</span> <span class="identifier">hello</span><span class="special">.</span><span class="identifier">Var</span><span class="special">(</span><span class="string">'pi'</span><span class="special">)</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span><span class="special">.</span><span class="identifier">value</span> <span class="special">=</span> <span class="number">3.14</span>
<span class="special">&gt;&gt;&gt;</span> <span class="keyword">print</span> <span class="identifier">x</span><span class="special">.</span><span class="identifier">name</span><span class="special">,</span> <span class="string">'is around'</span><span class="special">,</span> <span class="identifier">x</span><span class="special">.</span><span class="identifier">value</span>
<span class="identifier">pi</span> <span class="keyword">is</span> <span class="identifier">around</span> <span class="number">3.14</span>
@@ -183,7 +194,8 @@
Note that <tt class="literal">name</tt> is exposed as <span class="bold"><b>read-only</b></span>
while <tt class="literal">value</tt> is exposed as <span class="bold"><b>read-write</b></span>.
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span><span class="special">.</span><span class="identifier">name</span> <span class="special">=</span> <span class="string">'e'</span> <span class="comment"># can't change name
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span><span class="special">.</span><span class="identifier">name</span> <span class="special">=</span> <span class="string">'e'</span> <span class="comment"># can't change name
</span><span class="identifier">Traceback</span> <span class="special">(</span><span class="identifier">most</span> <span class="identifier">recent</span> <span class="identifier">call</span> <span class="identifier">last</span><span class="special">):</span>
<span class="identifier">File</span> <span class="string">"&lt;stdin&gt;"</span><span class="special">,</span> <span class="identifier">line</span> <span class="number">1</span><span class="special">,</span> <span class="keyword">in</span> #
<span class="identifier">AttributeError</span><span class="special">:</span> <span class="identifier">can</span>#<span class="identifier">t</span> <span class="identifier">set</span> <span class="identifier">attribute</span>
@@ -200,7 +212,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">Num</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">Num</span>
<span class="special">{</span>
<span class="identifier">Num</span><span class="special">();</span>
<span class="keyword">float</span> <span class="identifier">get</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
@@ -214,7 +227,8 @@
can just be a different syntax for a method call. Wrapping our <tt class="literal">Num</tt>
class using Boost.Python:
</p>
<pre class="programlisting"><span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">Num</span><span class="special">&gt;(</span><span class="string">"Num"</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">Num</span><span class="special">&gt;(</span><span class="string">"Num"</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">add_property</span><span class="special">(</span><span class="string">"rovalue"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">Num</span><span class="special">::</span><span class="identifier">get</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">add_property</span><span class="special">(</span><span class="string">"value"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">Num</span><span class="special">::</span><span class="identifier">get</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">Num</span><span class="special">::</span><span class="identifier">set</span><span class="special">);</span>
</pre>
@@ -223,7 +237,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span> <span class="special">=</span> <span class="identifier">Num</span><span class="special">()</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span> <span class="special">=</span> <span class="identifier">Num</span><span class="special">()</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span><span class="special">.</span><span class="identifier">value</span> <span class="special">=</span> <span class="number">3.14</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span><span class="special">.</span><span class="identifier">value</span><span class="special">,</span> <span class="identifier">x</span><span class="special">.</span><span class="identifier">rovalue</span>
<span class="special">(</span><span class="number">3.14</span><span class="special">,</span> <span class="number">3.14</span><span class="special">)</span>
@@ -236,7 +251,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="special">.</span><span class="identifier">add_property</span><span class="special">(</span><span class="string">"rovalue"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">Num</span><span class="special">::</span><span class="identifier">get</span><span class="special">)</span>
<pre class="programlisting">
<span class="special">.</span><span class="identifier">add_property</span><span class="special">(</span><span class="string">"rovalue"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">Num</span><span class="special">::</span><span class="identifier">get</span><span class="special">)</span>
</pre>
</div>
<div class="section" lang="en">
@@ -252,21 +268,24 @@
<p>
Consider this trivial inheritance structure:
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">Base</span> <span class="special">{</span> <span class="keyword">virtual</span> <span class="special">~</span><span class="identifier">Base</span><span class="special">();</span> <span class="special">};</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">Base</span> <span class="special">{</span> <span class="keyword">virtual</span> <span class="special">~</span><span class="identifier">Base</span><span class="special">();</span> <span class="special">};</span>
<span class="keyword">struct</span> <span class="identifier">Derived</span> <span class="special">:</span> <span class="identifier">Base</span> <span class="special">{};</span>
</pre>
<p>
And a set of C++ functions operating on <tt class="literal">Base</tt> and <tt class="literal">Derived</tt>
object instances:
</p>
<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">b</span><span class="special">(</span><span class="identifier">Base</span><span class="special">*);</span>
<pre class="programlisting">
<span class="keyword">void</span> <span class="identifier">b</span><span class="special">(</span><span class="identifier">Base</span><span class="special">*);</span>
<span class="keyword">void</span> <span class="identifier">d</span><span class="special">(</span><span class="identifier">Derived</span><span class="special">*);</span>
<span class="identifier">Base</span><span class="special">*</span> <span class="identifier">factory</span><span class="special">()</span> <span class="special">{</span> <span class="keyword">return</span> <span class="keyword">new</span> <span class="identifier">Derived</span><span class="special">;</span> <span class="special">}</span>
</pre>
<p>
We've seen how we can wrap the base class <tt class="literal">Base</tt>:
</p>
<pre class="programlisting"><span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">Base</span><span class="special">&gt;(</span><span class="string">"Base"</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">Base</span><span class="special">&gt;(</span><span class="string">"Base"</span><span class="special">)</span>
<span class="comment">/*...*/</span>
<span class="special">;</span>
</pre>
@@ -274,7 +293,8 @@
Now we can inform Boost.Python of the inheritance relationship between <tt class="literal">Derived</tt>
and its base class <tt class="literal">Base</tt>. Thus:
</p>
<pre class="programlisting"><span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">Derived</span><span class="special">,</span> <span class="identifier">bases</span><span class="special">&lt;</span><span class="identifier">Base</span><span class="special">&gt;</span> <span class="special">&gt;(</span><span class="string">"Derived"</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">Derived</span><span class="special">,</span> <span class="identifier">bases</span><span class="special">&lt;</span><span class="identifier">Base</span><span class="special">&gt;</span> <span class="special">&gt;(</span><span class="string">"Derived"</span><span class="special">)</span>
<span class="comment">/*...*/</span>
<span class="special">;</span>
</pre>
@@ -297,7 +317,8 @@
Now, we will expose the C++ free functions <tt class="literal">b</tt> and <tt class="literal">d</tt>
and <tt class="literal">factory</tt>:
</p>
<pre class="programlisting"><span class="identifier">def</span><span class="special">(</span><span class="string">"b"</span><span class="special">,</span> <span class="identifier">b</span><span class="special">);</span>
<pre class="programlisting">
<span class="identifier">def</span><span class="special">(</span><span class="string">"b"</span><span class="special">,</span> <span class="identifier">b</span><span class="special">);</span>
<span class="identifier">def</span><span class="special">(</span><span class="string">"d"</span><span class="special">,</span> <span class="identifier">d</span><span class="special">);</span>
<span class="identifier">def</span><span class="special">(</span><span class="string">"factory"</span><span class="special">,</span> <span class="identifier">factory</span><span class="special">);</span>
</pre>
@@ -310,7 +331,8 @@
is destroyed. We will see more of Boost.Python <a href="functions.html#python.call_policies" title="Call Policies">call
policies</a> later.
</p>
<pre class="programlisting"><span class="comment">// Tell Python to take ownership of factory's result
<pre class="programlisting">
<span class="comment">// Tell Python to take ownership of factory's result
</span><span class="identifier">def</span><span class="special">(</span><span class="string">"factory"</span><span class="special">,</span> <span class="identifier">factory</span><span class="special">,</span>
<span class="identifier">return_value_policy</span><span class="special">&lt;</span><span class="identifier">manage_new_object</span><span class="special">&gt;());</span>
</pre>
@@ -323,7 +345,8 @@
through virtual functions. Continuing our example, let us add a virtual function
to our <tt class="literal">Base</tt> class:
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">Base</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">Base</span>
<span class="special">{</span>
<span class="keyword">virtual</span> <span class="special">~</span><span class="identifier">Base</span><span class="special">()</span> <span class="special">{}</span>
<span class="keyword">virtual</span> <span class="keyword">int</span> <span class="identifier">f</span><span class="special">()</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>
@@ -341,7 +364,8 @@
that will unintrusively hook into the virtual functions so that a Python
override may be called:
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">BaseWrap</span> <span class="special">:</span> <span class="identifier">Base</span><span class="special">,</span> <span class="identifier">wrapper</span><span class="special">&lt;</span><span class="identifier">Base</span><span class="special">&gt;</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">BaseWrap</span> <span class="special">:</span> <span class="identifier">Base</span><span class="special">,</span> <span class="identifier">wrapper</span><span class="special">&lt;</span><span class="identifier">Base</span><span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">int</span> <span class="identifier">f</span><span class="special">()</span>
<span class="special">{</span>
@@ -373,7 +397,8 @@
<p>
Finally, exposing <tt class="computeroutput"><span class="identifier">Base</span></tt>:
</p>
<pre class="programlisting"><span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">BaseWrap</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">noncopyable</span><span class="special">&gt;(</span><span class="string">"Base"</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">BaseWrap</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">noncopyable</span><span class="special">&gt;(</span><span class="string">"Base"</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">pure_virtual</span><span class="special">(&amp;</span><span class="identifier">Base</span><span class="special">::</span><span class="identifier">f</span><span class="special">))</span>
<span class="special">;</span>
</pre>
@@ -412,7 +437,8 @@
section</a>, we wrapped a class with a pure virtual function that we then
implemented in C++, or Python classes derived from it. Our base class:
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">Base</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">Base</span>
<span class="special">{</span>
<span class="keyword">virtual</span> <span class="keyword">int</span> <span class="identifier">f</span><span class="special">()</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>
<span class="special">};</span>
@@ -421,7 +447,8 @@
had a pure virtual function <tt class="literal">f</tt>. If, however, its member
function <tt class="literal">f</tt> was not declared as pure virtual:
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">Base</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">Base</span>
<span class="special">{</span>
<span class="keyword">virtual</span> <span class="special">~</span><span class="identifier">Base</span><span class="special">()</span> <span class="special">{}</span>
<span class="keyword">virtual</span> <span class="keyword">int</span> <span class="identifier">f</span><span class="special">()</span> <span class="special">{</span> <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> <span class="special">}</span>
@@ -430,7 +457,8 @@
<p>
We wrap it this way:
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">BaseWrap</span> <span class="special">:</span> <span class="identifier">Base</span><span class="special">,</span> <span class="identifier">wrapper</span><span class="special">&lt;</span><span class="identifier">Base</span><span class="special">&gt;</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">BaseWrap</span> <span class="special">:</span> <span class="identifier">Base</span><span class="special">,</span> <span class="identifier">wrapper</span><span class="special">&lt;</span><span class="identifier">Base</span><span class="special">&gt;</span>
<span class="special">{</span>
<span class="keyword">int</span> <span class="identifier">f</span><span class="special">()</span>
<span class="special">{</span>
@@ -462,7 +490,8 @@
<p>
Finally, exposing:
</p>
<pre class="programlisting"><span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">BaseWrap</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">noncopyable</span><span class="special">&gt;(</span><span class="string">"Base"</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">BaseWrap</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">noncopyable</span><span class="special">&gt;(</span><span class="string">"Base"</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">Base</span><span class="special">::</span><span class="identifier">f</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">BaseWrap</span><span class="special">::</span><span class="identifier">default_f</span><span class="special">)</span>
<span class="special">;</span>
</pre>
@@ -477,7 +506,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="identifier">base</span> <span class="special">=</span> <span class="identifier">Base</span><span class="special">()</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">base</span> <span class="special">=</span> <span class="identifier">Base</span><span class="special">()</span>
<span class="special">&gt;&gt;&gt;</span> <span class="keyword">class</span> <span class="identifier">Derived</span><span class="special">(</span><span class="identifier">Base</span><span class="special">):</span>
<span class="special">...</span> <span class="keyword">def</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">self</span><span class="special">):</span>
<span class="special">...</span> <span class="keyword">return</span> <span class="number">42</span>
@@ -487,13 +517,15 @@
<p>
Calling <tt class="literal">base.f()</tt>:
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="identifier">base</span><span class="special">.</span><span class="identifier">f</span><span class="special">()</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">base</span><span class="special">.</span><span class="identifier">f</span><span class="special">()</span>
<span class="number">0</span>
</pre>
<p>
Calling <tt class="literal">derived.f()</tt>:
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="identifier">derived</span><span class="special">.</span><span class="identifier">f</span><span class="special">()</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">derived</span><span class="special">.</span><span class="identifier">f</span><span class="special">()</span>
<span class="number">42</span>
</pre>
</div>
@@ -501,7 +533,7 @@
<div class="titlepage"><div><div><h3 class="title">
<a name="python.class_operators_special_functions"></a>Class Operators/Special Functions</h3></div></div></div>
<a name="class_operators_special_functions.python_operators"></a><h2>
<a name="id462548"></a>
<a name="id461460"></a>
Python Operators
</h2>
<p>
@@ -515,7 +547,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">FilePos</span> <span class="special">{</span> <span class="comment">/*...*/</span> <span class="special">};</span>
<pre class="programlisting">
<span class="keyword">class</span> <span class="identifier">FilePos</span> <span class="special">{</span> <span class="comment">/*...*/</span> <span class="special">};</span>
<span class="identifier">FilePos</span> <span class="keyword">operator</span><span class="special">+(</span><span class="identifier">FilePos</span><span class="special">,</span> <span class="keyword">int</span><span class="special">);</span>
<span class="identifier">FilePos</span> <span class="keyword">operator</span><span class="special">+(</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">FilePos</span><span class="special">);</span>
@@ -529,7 +562,8 @@
The class and the various operators can be mapped to Python rather easily
and intuitively:
</p>
<pre class="programlisting"><span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">FilePos</span><span class="special">&gt;(</span><span class="string">"FilePos"</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">FilePos</span><span class="special">&gt;(</span><span class="string">"FilePos"</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="identifier">self</span> <span class="special">+</span> <span class="keyword">int</span><span class="special">())</span> <span class="comment">// __add__
</span> <span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="keyword">int</span><span class="special">()</span> <span class="special">+</span> <span class="identifier">self</span><span class="special">)</span> <span class="comment">// __radd__
</span> <span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="identifier">self</span> <span class="special">-</span> <span class="identifier">self</span><span class="special">)</span> <span class="comment">// __sub__
@@ -548,7 +582,7 @@
expressions".
</p>
<a name="class_operators_special_functions.special_methods"></a><h2>
<a name="id463302"></a>
<a name="id462216"></a>
Special Methods
</h2>
<p>
@@ -558,7 +592,8 @@
wrap C++ functions that correspond to these Python <span class="emphasis"><em>special functions</em></span>.
Example:
</p>
<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">Rational</span>
<pre class="programlisting">
<span class="keyword">class</span> <span class="identifier">Rational</span>
<span class="special">{</span> <span class="keyword">public</span><span class="special">:</span> <span class="keyword">operator</span> <span class="keyword">double</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span> <span class="special">};</span>
<span class="identifier">Rational</span> <span class="identifier">pow</span><span class="special">(</span><span class="identifier">Rational</span><span class="special">,</span> <span class="identifier">Rational</span><span class="special">);</span>

View File

@@ -12,10 +12,10 @@
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td>
<td align="center"><a href="../../../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../../../index.htm">Home</a></td>
<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../../../people/people.htm">People</a></td>
<td align="center"><a href="../../../../../../../more/faq.htm">FAQ</a></td>
<td align="center"><a href="../../../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
@@ -87,14 +87,16 @@ Namespaces are one honking great idea -- let's do more of those!
so Boost.Python must deal with them. To do this, it may need your help. Consider
the following C++ function:
</p>
<pre class="programlisting"><span class="identifier">X</span><span class="special">&amp;</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">Y</span><span class="special">&amp;</span> <span class="identifier">y</span><span class="special">,</span> <span class="identifier">Z</span><span class="special">*</span> <span class="identifier">z</span><span class="special">);</span>
<pre class="programlisting">
<span class="identifier">X</span><span class="special">&amp;</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">Y</span><span class="special">&amp;</span> <span class="identifier">y</span><span class="special">,</span> <span class="identifier">Z</span><span class="special">*</span> <span class="identifier">z</span><span class="special">);</span>
</pre>
<p>
How should the library wrap this function? A naive approach builds a Python
X object around result reference. This strategy might or might not work out.
Here's an example where it didn't
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span> <span class="special">=</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">y</span><span class="special">,</span> <span class="identifier">z</span><span class="special">)</span> <span class="preprocessor"># x</span> <span class="identifier">refers</span> <span class="identifier">to</span> <span class="identifier">some</span> <span class="identifier">C</span><span class="special">++</span> <span class="identifier">X</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span> <span class="special">=</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">y</span><span class="special">,</span> <span class="identifier">z</span><span class="special">)</span> <span class="preprocessor"># x</span> <span class="identifier">refers</span> <span class="identifier">to</span> <span class="identifier">some</span> <span class="identifier">C</span><span class="special">++</span> <span class="identifier">X</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">del</span> <span class="identifier">y</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span><span class="special">.</span><span class="identifier">some_method</span><span class="special">()</span> <span class="preprocessor"># CRASH</span><span class="special">!</span>
</pre>
@@ -104,7 +106,8 @@ Namespaces are one honking great idea -- let's do more of those!
<p>
Well, what if f() was implemented as shown below:
</p>
<pre class="programlisting"><span class="identifier">X</span><span class="special">&amp;</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">Y</span><span class="special">&amp;</span> <span class="identifier">y</span><span class="special">,</span> <span class="identifier">Z</span><span class="special">*</span> <span class="identifier">z</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">X</span><span class="special">&amp;</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">Y</span><span class="special">&amp;</span> <span class="identifier">y</span><span class="special">,</span> <span class="identifier">Z</span><span class="special">*</span> <span class="identifier">z</span><span class="special">)</span>
<span class="special">{</span>
<span class="identifier">y</span><span class="special">.</span><span class="identifier">z</span> <span class="special">=</span> <span class="identifier">z</span><span class="special">;</span>
<span class="keyword">return</span> <span class="identifier">y</span><span class="special">.</span><span class="identifier">x</span><span class="special">;</span>
@@ -142,7 +145,8 @@ Namespaces are one honking great idea -- let's do more of those!
</p>
<p>
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">y</span><span class="special">,</span> <span class="identifier">z</span><span class="special">).</span><span class="identifier">set</span><span class="special">(</span><span class="number">42</span><span class="special">)</span> <span class="comment"># Result disappears
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">y</span><span class="special">,</span> <span class="identifier">z</span><span class="special">).</span><span class="identifier">set</span><span class="special">(</span><span class="number">42</span><span class="special">)</span> <span class="comment"># Result disappears
</span><span class="special">&gt;&gt;&gt;</span> <span class="identifier">y</span><span class="special">.</span><span class="identifier">x</span><span class="special">.</span><span class="identifier">get</span><span class="special">()</span> <span class="comment"># No crash, but still bad
</span><span class="number">3.14</span>
</pre>
@@ -156,7 +160,8 @@ Namespaces are one honking great idea -- let's do more of those!
</p>
<p>
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">Y</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">Y</span>
<span class="special">{</span>
<span class="identifier">X</span> <span class="identifier">x</span><span class="special">;</span> <span class="identifier">Z</span><span class="special">*</span> <span class="identifier">z</span><span class="special">;</span>
<span class="keyword">int</span> <span class="identifier">z_value</span><span class="special">()</span> <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">z</span><span class="special">-&gt;</span><span class="identifier">value</span><span class="special">();</span> <span class="special">}</span>
@@ -166,14 +171,16 @@ Namespaces are one honking great idea -- let's do more of those!
Notice that the data member <tt class="literal">z</tt> is held by class Y using
a raw pointer. Now we have a potential dangling pointer problem inside Y:
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span> <span class="special">=</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">y</span><span class="special">,</span> <span class="identifier">z</span><span class="special">)</span> <span class="preprocessor"># y</span> <span class="identifier">refers</span> <span class="identifier">to</span> <span class="identifier">z</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">x</span> <span class="special">=</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">y</span><span class="special">,</span> <span class="identifier">z</span><span class="special">)</span> <span class="preprocessor"># y</span> <span class="identifier">refers</span> <span class="identifier">to</span> <span class="identifier">z</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">del</span> <span class="identifier">z</span> <span class="preprocessor"># Kill</span> <span class="identifier">the</span> <span class="identifier">z</span> <span class="identifier">object</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">y</span><span class="special">.</span><span class="identifier">z_value</span><span class="special">()</span> <span class="preprocessor"># CRASH</span><span class="special">!</span>
</pre>
<p>
For reference, here's the implementation of <tt class="literal">f</tt> again:
</p>
<pre class="programlisting"><span class="identifier">X</span><span class="special">&amp;</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">Y</span><span class="special">&amp;</span> <span class="identifier">y</span><span class="special">,</span> <span class="identifier">Z</span><span class="special">*</span> <span class="identifier">z</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">X</span><span class="special">&amp;</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">Y</span><span class="special">&amp;</span> <span class="identifier">y</span><span class="special">,</span> <span class="identifier">Z</span><span class="special">*</span> <span class="identifier">z</span><span class="special">)</span>
<span class="special">{</span>
<span class="identifier">y</span><span class="special">.</span><span class="identifier">z</span> <span class="special">=</span> <span class="identifier">z</span><span class="special">;</span>
<span class="keyword">return</span> <span class="identifier">y</span><span class="special">.</span><span class="identifier">x</span><span class="special">;</span>
@@ -205,7 +212,7 @@ Namespaces are one honking great idea -- let's do more of those!
<li><span class="bold"><b>BOOM!</b></span></li>
</ol></div>
<a name="call_policies.call_policies"></a><h2>
<a name="id465291"></a>
<a name="id464076"></a>
Call Policies
</h2>
<p>
@@ -213,7 +220,8 @@ Namespaces are one honking great idea -- let's do more of those!
In our example, <tt class="literal">return_internal_reference</tt> and <tt class="literal">with_custodian_and_ward</tt>
are our friends:
</p>
<pre class="programlisting"><span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">f</span><span class="special">,</span>
<pre class="programlisting">
<span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">f</span><span class="special">,</span>
<span class="identifier">return_internal_reference</span><span class="special">&lt;</span><span class="number">1</span><span class="special">,</span>
<span class="identifier">with_custodian_and_ward</span><span class="special">&lt;</span><span class="number">1</span><span class="special">,</span> <span class="number">2</span><span class="special">&gt;</span> <span class="special">&gt;());</span>
</pre>
@@ -221,7 +229,8 @@ Namespaces are one honking great idea -- let's do more of those!
What are the <tt class="literal">1</tt> and <tt class="literal">2</tt> parameters, you
ask?
</p>
<pre class="programlisting"><span class="identifier">return_internal_reference</span><span class="special">&lt;</span><span class="number">1</span>
<pre class="programlisting">
<span class="identifier">return_internal_reference</span><span class="special">&lt;</span><span class="number">1</span>
</pre>
<p>
Informs Boost.Python that the first argument, in our case <tt class="literal">Y&amp;
@@ -230,7 +239,8 @@ Namespaces are one honking great idea -- let's do more of those!
In short: "return an internal reference <tt class="literal">X&amp;</tt> owned
by the 1st argument <tt class="literal">Y&amp; y</tt>".
</p>
<pre class="programlisting"><span class="identifier">with_custodian_and_ward</span><span class="special">&lt;</span><span class="number">1</span><span class="special">,</span> <span class="number">2</span><span class="special">&gt;</span>
<pre class="programlisting">
<span class="identifier">with_custodian_and_ward</span><span class="special">&lt;</span><span class="number">1</span><span class="special">,</span> <span class="number">2</span><span class="special">&gt;</span>
</pre>
<p>
Informs Boost.Python that the lifetime of the argument indicated by ward
@@ -242,7 +252,8 @@ Namespaces are one honking great idea -- let's do more of those!
It is also important to note that we have defined two policies above. Two
or more policies can be composed by chaining. Here's the general syntax:
</p>
<pre class="programlisting"><span class="identifier">policy1</span><span class="special">&lt;</span><span class="identifier">args</span><span class="special">...,</span>
<pre class="programlisting">
<span class="identifier">policy1</span><span class="special">&lt;</span><span class="identifier">args</span><span class="special">...,</span>
<span class="identifier">policy2</span><span class="special">&lt;</span><span class="identifier">args</span><span class="special">...,</span>
<span class="identifier">policy3</span><span class="special">&lt;</span><span class="identifier">args</span><span class="special">...&gt;</span> <span class="special">&gt;</span> <span class="special">&gt;</span>
</pre>
@@ -306,7 +317,8 @@ Namespaces are one honking great idea -- let's do more of those!
<p>
We have here our C++ class:
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">X</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">X</span>
<span class="special">{</span>
<span class="keyword">bool</span> <span class="identifier">f</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">a</span><span class="special">)</span>
<span class="special">{</span>
@@ -333,7 +345,8 @@ Namespaces are one honking great idea -- let's do more of those!
Class X has 4 overloaded functions. We will start by introducing some member
function pointer variables:
</p>
<pre class="programlisting"><span class="keyword">bool</span> <span class="special">(</span><span class="identifier">X</span><span class="special">::*</span><span class="identifier">fx1</span><span class="special">)(</span><span class="keyword">int</span><span class="special">)</span> <span class="special">=</span> <span class="special">&amp;</span><span class="identifier">X</span><span class="special">::</span><span class="identifier">f</span><span class="special">;</span>
<pre class="programlisting">
<span class="keyword">bool</span> <span class="special">(</span><span class="identifier">X</span><span class="special">::*</span><span class="identifier">fx1</span><span class="special">)(</span><span class="keyword">int</span><span class="special">)</span> <span class="special">=</span> <span class="special">&amp;</span><span class="identifier">X</span><span class="special">::</span><span class="identifier">f</span><span class="special">;</span>
<span class="keyword">bool</span> <span class="special">(</span><span class="identifier">X</span><span class="special">::*</span><span class="identifier">fx2</span><span class="special">)(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">double</span><span class="special">)</span> <span class="special">=</span> <span class="special">&amp;</span><span class="identifier">X</span><span class="special">::</span><span class="identifier">f</span><span class="special">;</span>
<span class="keyword">bool</span> <span class="special">(</span><span class="identifier">X</span><span class="special">::*</span><span class="identifier">fx3</span><span class="special">)(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">double</span><span class="special">,</span> <span class="keyword">char</span><span class="special">)=</span> <span class="special">&amp;</span><span class="identifier">X</span><span class="special">::</span><span class="identifier">f</span><span class="special">;</span>
<span class="keyword">int</span> <span class="special">(</span><span class="identifier">X</span><span class="special">::*</span><span class="identifier">fx4</span><span class="special">)(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">)</span> <span class="special">=</span> <span class="special">&amp;</span><span class="identifier">X</span><span class="special">::</span><span class="identifier">f</span><span class="special">;</span>
@@ -341,7 +354,8 @@ Namespaces are one honking great idea -- let's do more of those!
<p>
With these in hand, we can proceed to define and wrap this for Python:
</p>
<pre class="programlisting"><span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">fx1</span><span class="special">)</span>
<pre class="programlisting">
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">fx1</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">fx2</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">fx3</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">fx4</span><span class="special">)</span>
@@ -355,26 +369,30 @@ Namespaces are one honking great idea -- let's do more of those!
pointers carry no default argument info. Take a function <tt class="literal">f</tt>
with default arguments:
</p>
<pre class="programlisting"><span class="keyword">int</span> <span class="identifier">f</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">double</span> <span class="special">=</span> <span class="number">3.14</span><span class="special">,</span> <span class="keyword">char</span> <span class="keyword">const</span><span class="special">*</span> <span class="special">=</span> <span class="string">"hello"</span><span class="special">);</span>
<pre class="programlisting">
<span class="keyword">int</span> <span class="identifier">f</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">double</span> <span class="special">=</span> <span class="number">3.14</span><span class="special">,</span> <span class="keyword">char</span> <span class="keyword">const</span><span class="special">*</span> <span class="special">=</span> <span class="string">"hello"</span><span class="special">);</span>
</pre>
<p>
But the type of a pointer to the function <tt class="literal">f</tt> has no information
about its default arguments:
</p>
<pre class="programlisting"><span class="keyword">int</span><span class="special">(*</span><span class="identifier">g</span><span class="special">)(</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">double</span><span class="special">,</span><span class="keyword">char</span> <span class="keyword">const</span><span class="special">*)</span> <span class="special">=</span> <span class="identifier">f</span><span class="special">;</span> <span class="comment">// defaults lost!
<pre class="programlisting">
<span class="keyword">int</span><span class="special">(*</span><span class="identifier">g</span><span class="special">)(</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">double</span><span class="special">,</span><span class="keyword">char</span> <span class="keyword">const</span><span class="special">*)</span> <span class="special">=</span> <span class="identifier">f</span><span class="special">;</span> <span class="comment">// defaults lost!
</span></pre>
<p>
When we pass this function pointer to the <tt class="literal">def</tt> function,
there is no way to retrieve the default arguments:
</p>
<pre class="programlisting"><span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span> <span class="comment">// defaults lost!
<pre class="programlisting">
<span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">f</span><span class="special">);</span> <span class="comment">// defaults lost!
</span></pre>
<p>
Because of this, when wrapping C++ code, we had to resort to manual wrapping
as outlined in the <a href="functions.html#python.overloading" title="Overloading">previous section</a>,
or writing thin wrappers:
</p>
<pre class="programlisting"><span class="comment">// write "thin wrappers"
<pre class="programlisting">
<span class="comment">// write "thin wrappers"
</span><span class="keyword">int</span> <span class="identifier">f1</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">x</span><span class="special">)</span> <span class="special">{</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">x</span><span class="special">);</span> <span class="special">}</span>
<span class="keyword">int</span> <span class="identifier">f2</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">x</span><span class="special">,</span> <span class="keyword">double</span> <span class="identifier">y</span><span class="special">)</span> <span class="special">{</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">x</span><span class="special">,</span><span class="identifier">y</span><span class="special">);</span> <span class="special">}</span>
@@ -397,13 +415,14 @@ Namespaces are one honking great idea -- let's do more of those!
</li>
</ul></div>
<a name="default_arguments.boost_python_function_overloads"></a><h2>
<a name="id467317"></a>
<a name="id466117"></a>
BOOST_PYTHON_FUNCTION_OVERLOADS
</h2>
<p>
Boost.Python now has a way to make it easier. For instance, given a function:
</p>
<pre class="programlisting"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">a</span><span class="special">,</span> <span class="keyword">char</span> <span class="identifier">b</span> <span class="special">=</span> <span class="number">1</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="identifier">c</span> <span class="special">=</span> <span class="number">2</span><span class="special">,</span> <span class="keyword">double</span> <span class="identifier">d</span> <span class="special">=</span> <span class="number">3</span><span class="special">)</span>
<pre class="programlisting">
<span class="keyword">int</span> <span class="identifier">foo</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">a</span><span class="special">,</span> <span class="keyword">char</span> <span class="identifier">b</span> <span class="special">=</span> <span class="number">1</span><span class="special">,</span> <span class="keyword">unsigned</span> <span class="identifier">c</span> <span class="special">=</span> <span class="number">2</span><span class="special">,</span> <span class="keyword">double</span> <span class="identifier">d</span> <span class="special">=</span> <span class="number">3</span><span class="special">)</span>
<span class="special">{</span>
<span class="comment">/*...*/</span>
<span class="special">}</span>
@@ -411,7 +430,8 @@ Namespaces are one honking great idea -- let's do more of those!
<p>
The macro invocation:
</p>
<pre class="programlisting"><span class="identifier">BOOST_PYTHON_FUNCTION_OVERLOADS</span><span class="special">(</span><span class="identifier">foo_overloads</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">,</span> <span class="number">1</span><span class="special">,</span> <span class="number">4</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">BOOST_PYTHON_FUNCTION_OVERLOADS</span><span class="special">(</span><span class="identifier">foo_overloads</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">,</span> <span class="number">1</span><span class="special">,</span> <span class="number">4</span><span class="special">)</span>
</pre>
<p>
will automatically create the thin wrappers for us. This macro will create
@@ -421,10 +441,11 @@ Namespaces are one honking great idea -- let's do more of those!
number of arguments is 1 and the maximum number of arguments is 4. The <tt class="literal">def(...)</tt>
function will automatically add all the foo variants for us:
</p>
<pre class="programlisting"><span class="identifier">def</span><span class="special">(</span><span class="string">"foo"</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">,</span> <span class="identifier">foo_overloads</span><span class="special">());</span>
<pre class="programlisting">
<span class="identifier">def</span><span class="special">(</span><span class="string">"foo"</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">,</span> <span class="identifier">foo_overloads</span><span class="special">());</span>
</pre>
<a name="default_arguments.boost_python_member_function_overloads"></a><h2>
<a name="id467632"></a>
<a name="id466436"></a>
BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS
</h2>
<p>
@@ -439,7 +460,8 @@ Namespaces are one honking great idea -- let's do more of those!
may be used to automatically create the thin wrappers for wrapping member
functions. Let's have an example:
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">george</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">george</span>
<span class="special">{</span>
<span class="keyword">void</span>
<span class="identifier">wack_em</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">a</span><span class="special">,</span> <span class="keyword">int</span> <span class="identifier">b</span> <span class="special">=</span> <span class="number">0</span><span class="special">,</span> <span class="keyword">char</span> <span class="identifier">c</span> <span class="special">=</span> <span class="char">'x'</span><span class="special">)</span>
@@ -451,7 +473,8 @@ Namespaces are one honking great idea -- let's do more of those!
<p>
The macro invocation:
</p>
<pre class="programlisting"><span class="identifier">BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS</span><span class="special">(</span><span class="identifier">george_overloads</span><span class="special">,</span> <span class="identifier">wack_em</span><span class="special">,</span> <span class="number">1</span><span class="special">,</span> <span class="number">3</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS</span><span class="special">(</span><span class="identifier">george_overloads</span><span class="special">,</span> <span class="identifier">wack_em</span><span class="special">,</span> <span class="number">1</span><span class="special">,</span> <span class="number">3</span><span class="special">)</span>
</pre>
<p>
will generate a set of thin wrappers for george's <tt class="literal">wack_em</tt>
@@ -460,14 +483,15 @@ Namespaces are one honking great idea -- let's do more of those!
in a class named <tt class="literal">george_overloads</tt> that can then be used
as an argument to <tt class="literal">def(...)</tt>:
</p>
<pre class="programlisting"><span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"wack_em"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">george</span><span class="special">::</span><span class="identifier">wack_em</span><span class="special">,</span> <span class="identifier">george_overloads</span><span class="special">());</span>
<pre class="programlisting">
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"wack_em"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">george</span><span class="special">::</span><span class="identifier">wack_em</span><span class="special">,</span> <span class="identifier">george_overloads</span><span class="special">());</span>
</pre>
<p>
See the <a href="../../../../v2/overloads.html#BOOST_PYTHON_FUNCTION_OVERLOADS-spec" target="_top">overloads
reference</a> for details.
</p>
<a name="default_arguments.init_and_optional"></a><h2>
<a name="id467992"></a>
<a name="id466799"></a>
init and optional
</h2>
<p>
@@ -475,7 +499,8 @@ Namespaces are one honking great idea -- let's do more of those!
arguments or a sequence of overloads. Remember <tt class="literal">init&lt;...&gt;</tt>?
For example, given a class X with a constructor:
</p>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">X</span>
<pre class="programlisting">
<span class="keyword">struct</span> <span class="identifier">X</span>
<span class="special">{</span>
<span class="identifier">X</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">a</span><span class="special">,</span> <span class="keyword">char</span> <span class="identifier">b</span> <span class="special">=</span> <span class="char">'D'</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">c</span> <span class="special">=</span> <span class="string">"constructor"</span><span class="special">,</span> <span class="keyword">double</span> <span class="identifier">d</span> <span class="special">=</span> <span class="number">0.0</span><span class="special">);</span>
<span class="comment">/*...*/</span>
@@ -484,7 +509,8 @@ Namespaces are one honking great idea -- let's do more of those!
<p>
You can easily add this constructor to Boost.Python in one shot:
</p>
<pre class="programlisting"><span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="identifier">init</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="keyword">double</span><span class="special">&gt;</span> <span class="special">&gt;())</span>
<pre class="programlisting">
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="identifier">init</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">optional</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="keyword">double</span><span class="special">&gt;</span> <span class="special">&gt;())</span>
</pre>
<p>
Notice the use of <tt class="literal">init&lt;...&gt;</tt> and <tt class="literal">optional&lt;...&gt;</tt>
@@ -500,7 +526,8 @@ Namespaces are one honking great idea -- let's do more of those!
used for overloaded functions and member functions with a common sequence
of initial arguments. Here is an example:
</p>
<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">foo</span><span class="special">()</span>
<pre class="programlisting">
<span class="keyword">void</span> <span class="identifier">foo</span><span class="special">()</span>
<span class="special">{</span>
<span class="comment">/*...*/</span>
<span class="special">}</span>
@@ -524,19 +551,21 @@ Namespaces are one honking great idea -- let's do more of those!
Like in the previous section, we can generate thin wrappers for these overloaded
functions in one-shot:
</p>
<pre class="programlisting"><span class="identifier">BOOST_PYTHON_FUNCTION_OVERLOADS</span><span class="special">(</span><span class="identifier">foo_overloads</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="number">3</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">BOOST_PYTHON_FUNCTION_OVERLOADS</span><span class="special">(</span><span class="identifier">foo_overloads</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="number">3</span><span class="special">)</span>
</pre>
<p>
Then...
</p>
<pre class="programlisting"><span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"foo"</span><span class="special">,</span> <span class="special">(</span><span class="keyword">void</span><span class="special">(*)(</span><span class="keyword">bool</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">))</span><span class="number">0</span><span class="special">,</span> <span class="identifier">foo_overloads</span><span class="special">());</span>
<pre class="programlisting">
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"foo"</span><span class="special">,</span> <span class="special">(</span><span class="keyword">void</span><span class="special">(*)(</span><span class="keyword">bool</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">))</span><span class="number">0</span><span class="special">,</span> <span class="identifier">foo_overloads</span><span class="special">());</span>
</pre>
<p>
Notice though that we have a situation now where we have a minimum of zero
(0) arguments and a maximum of 3 arguments.
</p>
<a name="auto_overloading.manual_wrapping"></a><h2>
<a name="id468767"></a>
<a name="id467581"></a>
Manual Wrapping
</h2>
<p>
@@ -555,18 +584,21 @@ Namespaces are one honking great idea -- let's do more of those!
to automatically wrap the first three of the <tt class="literal">def</tt>s and
manually wrap just the last. Here's how we'll do this:
</p>
<pre class="programlisting"><span class="identifier">BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS</span><span class="special">(</span><span class="identifier">xf_overloads</span><span class="special">,</span> <span class="identifier">f</span><span class="special">,</span> <span class="number">1</span><span class="special">,</span> <span class="number">4</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS</span><span class="special">(</span><span class="identifier">xf_overloads</span><span class="special">,</span> <span class="identifier">f</span><span class="special">,</span> <span class="number">1</span><span class="special">,</span> <span class="number">4</span><span class="special">)</span>
</pre>
<p>
Create a member function pointers as above for both X::f overloads:
</p>
<pre class="programlisting"><span class="keyword">bool</span> <span class="special">(</span><span class="identifier">X</span><span class="special">::*</span><span class="identifier">fx1</span><span class="special">)(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">double</span><span class="special">,</span> <span class="keyword">char</span><span class="special">)</span> <span class="special">=</span> <span class="special">&amp;</span><span class="identifier">X</span><span class="special">::</span><span class="identifier">f</span><span class="special">;</span>
<pre class="programlisting">
<span class="keyword">bool</span> <span class="special">(</span><span class="identifier">X</span><span class="special">::*</span><span class="identifier">fx1</span><span class="special">)(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">double</span><span class="special">,</span> <span class="keyword">char</span><span class="special">)</span> <span class="special">=</span> <span class="special">&amp;</span><span class="identifier">X</span><span class="special">::</span><span class="identifier">f</span><span class="special">;</span>
<span class="keyword">int</span> <span class="special">(</span><span class="identifier">X</span><span class="special">::*</span><span class="identifier">fx2</span><span class="special">)(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">)</span> <span class="special">=</span> <span class="special">&amp;</span><span class="identifier">X</span><span class="special">::</span><span class="identifier">f</span><span class="special">;</span>
</pre>
<p>
Then...
</p>
<pre class="programlisting"><span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">fx1</span><span class="special">,</span> <span class="identifier">xf_overloads</span><span class="special">());</span>
<pre class="programlisting">
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">fx1</span><span class="special">,</span> <span class="identifier">xf_overloads</span><span class="special">());</span>
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"f"</span><span class="special">,</span> <span class="identifier">fx2</span><span class="special">)</span>
</pre>
</div>

View File

@@ -12,10 +12,10 @@
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td>
<td align="center"><a href="../../../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../../../index.htm">Home</a></td>
<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../../../people/people.htm">People</a></td>
<td align="center"><a href="../../../../../../../more/faq.htm">FAQ</a></td>
<td align="center"><a href="../../../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
@@ -26,7 +26,7 @@
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="python.hello"></a> Building Hello World</h2></div></div></div>
<a name="hello.from_start_to_finish"></a><h2>
<a name="id388718"></a>
<a name="id387672"></a>
From Start To Finish
</h2>
<p>
@@ -92,7 +92,7 @@
platforms. The complete list of Bjam executables can be found <a href="http://sourceforge.net/project/showfiles.php?group_id=7586" target="_top">here</a>.
</p>
<a name="hello.let_s_jam_"></a><h2>
<a name="id387300"></a>
<a name="id386265"></a>
Let's Jam!
</h2>
<p>
@@ -108,7 +108,7 @@
you going.
</p>
<a name="hello.running_bjam"></a><h2>
<a name="id387357"></a>
<a name="id386322"></a>
Running bjam
</h2>
<p>
@@ -156,7 +156,8 @@ using python : 2.4 : C:/dev/tools<span class="emphasis"><em>Python</em></span> ;
<p>
Finally:
</p>
<pre class="programlisting"><span class="identifier">bjam</span>
<pre class="programlisting">
<span class="identifier">bjam</span>
</pre>
<p>
It should be building now:
@@ -179,17 +180,6 @@ bjam
Or something similar. If all is well, you should now have built the DLLs and
run the Python program.
</p>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../doc/html/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td colspan="2" align="left" valign="top"><p>
Starting from Boost 1.35, bjam erases the generated executables (e.g. pyd
file) after the test has concluded to conserve disk space. To keep bjam from
doing that, pass --preserve-test-targets to bjam.
</p></td></tr>
</table></div>
<div class="blockquote"><blockquote class="blockquote">
<p>
</p>

View File

@@ -12,10 +12,10 @@
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td>
<td align="center"><a href="../../../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../../../index.htm">Home</a></td>
<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../../../people/people.htm">People</a></td>
<td align="center"><a href="../../../../../../../more/faq.htm">FAQ</a></td>
<td align="center"><a href="../../../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
@@ -64,7 +64,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="identifier">iter</span> <span class="special">=</span> <span class="identifier">x</span><span class="special">.</span><span class="identifier">__iter__</span><span class="special">()</span> <span class="comment"># get iterator
<pre class="programlisting">
<span class="identifier">iter</span> <span class="special">=</span> <span class="identifier">x</span><span class="special">.</span><span class="identifier">__iter__</span><span class="special">()</span> <span class="comment"># get iterator
</span><span class="keyword">try</span><span class="special">:</span>
<span class="keyword">while</span> <span class="number">1</span><span class="special">:</span>
<span class="identifier">y</span> <span class="special">=</span> <span class="identifier">iter</span><span class="special">.</span><span class="identifier">next</span><span class="special">()</span> <span class="comment"># get each item
@@ -78,14 +79,16 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="identifier">object</span> <span class="identifier">get_iterator</span> <span class="special">=</span> <span class="identifier">iterator</span><span class="special">&lt;</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="special">&gt;();</span>
<pre class="programlisting">
<span class="identifier">object</span> <span class="identifier">get_iterator</span> <span class="special">=</span> <span class="identifier">iterator</span><span class="special">&lt;</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="special">&gt;();</span>
<span class="identifier">object</span> <span class="identifier">iter</span> <span class="special">=</span> <span class="identifier">get_iterator</span><span class="special">(</span><span class="identifier">v</span><span class="special">);</span>
<span class="identifier">object</span> <span class="identifier">first</span> <span class="special">=</span> <span class="identifier">iter</span><span class="special">.</span><span class="identifier">next</span><span class="special">();</span>
</pre>
<p>
Or for use in class_&lt;&gt;:
</p>
<pre class="programlisting"><span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"__iter__"</span><span class="special">,</span> <span class="identifier">iterator</span><span class="special">&lt;</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="special">&gt;())</span>
<pre class="programlisting">
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"__iter__"</span><span class="special">,</span> <span class="identifier">iterator</span><span class="special">&lt;</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="special">&gt;())</span>
</pre>
<p>
<span class="bold"><b>range</b></span>
@@ -131,7 +134,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="identifier">f</span> <span class="special">=</span> <span class="identifier">Field</span><span class="special">()</span>
<pre class="programlisting">
<span class="identifier">f</span> <span class="special">=</span> <span class="identifier">Field</span><span class="special">()</span>
<span class="keyword">for</span> <span class="identifier">x</span> <span class="keyword">in</span> <span class="identifier">f</span><span class="special">.</span><span class="identifier">pions</span><span class="special">:</span>
<span class="identifier">smash</span><span class="special">(</span><span class="identifier">x</span><span class="special">)</span>
<span class="keyword">for</span> <span class="identifier">y</span> <span class="keyword">in</span> <span class="identifier">f</span><span class="special">.</span><span class="identifier">bogons</span><span class="special">:</span>
@@ -142,7 +146,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">F</span><span class="special">&gt;(</span><span class="string">"Field"</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">F</span><span class="special">&gt;(</span><span class="string">"Field"</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">property</span><span class="special">(</span><span class="string">"pions"</span><span class="special">,</span> <span class="identifier">range</span><span class="special">(&amp;</span><span class="identifier">F</span><span class="special">::</span><span class="identifier">p_begin</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">F</span><span class="special">::</span><span class="identifier">p_end</span><span class="special">))</span>
<span class="special">.</span><span class="identifier">property</span><span class="special">(</span><span class="string">"bogons"</span><span class="special">,</span> <span class="identifier">range</span><span class="special">(&amp;</span><span class="identifier">F</span><span class="special">::</span><span class="identifier">b_begin</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">F</span><span class="special">::</span><span class="identifier">b_end</span><span class="special">));</span>
</pre>
@@ -158,7 +163,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">void</span> <span class="identifier">list_assign</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">list</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&amp;</span> <span class="identifier">l</span><span class="special">,</span> <span class="identifier">object</span> <span class="identifier">o</span><span class="special">)</span> <span class="special">{</span>
<span class="comment">// Turn a Python sequence into an STL input range
</span> <span class="identifier">stl_input_iterator</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span> <span class="identifier">begin</span><span class="special">(</span><span class="identifier">o</span><span class="special">),</span> <span class="identifier">end</span><span class="special">;</span>
@@ -177,7 +183,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="identifier">x</span> <span class="special">=</span> <span class="identifier">list_int</span><span class="special">();</span>
<pre class="programlisting">
<span class="identifier">x</span> <span class="special">=</span> <span class="identifier">list_int</span><span class="special">();</span>
<span class="identifier">x</span><span class="special">.</span><span class="identifier">assign</span><span class="special">([</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">,</span><span class="number">3</span><span class="special">,</span><span class="number">4</span><span class="special">,</span><span class="number">5</span><span class="special">])</span>
</pre>
</div>

View File

@@ -12,10 +12,10 @@
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td>
<td align="center"><a href="../../../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../../../index.htm">Home</a></td>
<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../../../people/people.htm">People</a></td>
<td align="center"><a href="../../../../../../../more/faq.htm">FAQ</a></td>
<td align="center"><a href="../../../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
@@ -62,7 +62,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="keyword">def</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">x</span><span class="special">,</span> <span class="identifier">y</span><span class="special">):</span>
<pre class="programlisting">
<span class="keyword">def</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">x</span><span class="special">,</span> <span class="identifier">y</span><span class="special">):</span>
<span class="keyword">if</span> <span class="special">(</span><span class="identifier">y</span> <span class="special">==</span> <span class="string">'foo'</span><span class="special">):</span>
<span class="identifier">x</span><span class="special">[</span><span class="number">3</span><span class="special">:</span><span class="number">7</span><span class="special">]</span> <span class="special">=</span> <span class="string">'bar'</span>
<span class="keyword">else</span><span class="special">:</span>
@@ -77,7 +78,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="identifier">object</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">object</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">object</span> <span class="identifier">y</span><span class="special">)</span> <span class="special">{</span>
<pre class="programlisting">
<span class="identifier">object</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">object</span> <span class="identifier">x</span><span class="special">,</span> <span class="identifier">object</span> <span class="identifier">y</span><span class="special">)</span> <span class="special">{</span>
<span class="keyword">if</span> <span class="special">(</span><span class="identifier">y</span> <span class="special">==</span> <span class="string">"foo"</span><span class="special">)</span>
<span class="identifier">x</span><span class="special">.</span><span class="identifier">slice</span><span class="special">(</span><span class="number">3</span><span class="special">,</span><span class="number">7</span><span class="special">)</span> <span class="special">=</span> <span class="string">"bar"</span><span class="special">;</span>
<span class="keyword">else</span>
@@ -124,20 +126,23 @@
These derived <tt class="literal">object</tt> types act like real Python types.
For instance:
</p>
<pre class="programlisting"><span class="identifier">str</span><span class="special">(</span><span class="number">1</span><span class="special">)</span> <span class="special">==&gt;</span> <span class="string">"1"</span>
<pre class="programlisting">
<span class="identifier">str</span><span class="special">(</span><span class="number">1</span><span class="special">)</span> <span class="special">==&gt;</span> <span class="string">"1"</span>
</pre>
<p>
Wherever appropriate, a particular derived <tt class="literal">object</tt> has
corresponding Python type's methods. For instance, <tt class="literal">dict</tt>
has a <tt class="literal">keys()</tt> method:
</p>
<pre class="programlisting"><span class="identifier">d</span><span class="special">.</span><span class="identifier">keys</span><span class="special">()</span>
<pre class="programlisting">
<span class="identifier">d</span><span class="special">.</span><span class="identifier">keys</span><span class="special">()</span>
</pre>
<p>
<tt class="literal">make_tuple</tt> is provided for declaring <span class="emphasis"><em>tuple literals</em></span>.
Example:
</p>
<pre class="programlisting"><span class="identifier">make_tuple</span><span class="special">(</span><span class="number">123</span><span class="special">,</span> <span class="char">'D'</span><span class="special">,</span> <span class="string">"Hello, World"</span><span class="special">,</span> <span class="number">0.0</span><span class="special">);</span>
<pre class="programlisting">
<span class="identifier">make_tuple</span><span class="special">(</span><span class="number">123</span><span class="special">,</span> <span class="char">'D'</span><span class="special">,</span> <span class="string">"Hello, World"</span><span class="special">,</span> <span class="number">0.0</span><span class="special">);</span>
</pre>
<p>
In C++, when Boost.Python <tt class="literal">object</tt>s are used as arguments
@@ -145,7 +150,8 @@
<tt class="literal">f</tt>, as declared below, is wrapped, it will only accept
instances of Python's <tt class="literal">str</tt> type and subtypes.
</p>
<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">str</span> <span class="identifier">name</span><span class="special">)</span>
<pre class="programlisting">
<span class="keyword">void</span> <span class="identifier">f</span><span class="special">(</span><span class="identifier">str</span> <span class="identifier">name</span><span class="special">)</span>
<span class="special">{</span>
<span class="identifier">object</span> <span class="identifier">n2</span> <span class="special">=</span> <span class="identifier">name</span><span class="special">.</span><span class="identifier">attr</span><span class="special">(</span><span class="string">"upper"</span><span class="special">)();</span> <span class="comment">// NAME = name.upper()
</span> <span class="identifier">str</span> <span class="identifier">NAME</span> <span class="special">=</span> <span class="identifier">name</span><span class="special">.</span><span class="identifier">upper</span><span class="special">();</span> <span class="comment">// better
@@ -155,13 +161,15 @@
<p>
In finer detail:
</p>
<pre class="programlisting"><span class="identifier">str</span> <span class="identifier">NAME</span> <span class="special">=</span> <span class="identifier">name</span><span class="special">.</span><span class="identifier">upper</span><span class="special">();</span>
<pre class="programlisting">
<span class="identifier">str</span> <span class="identifier">NAME</span> <span class="special">=</span> <span class="identifier">name</span><span class="special">.</span><span class="identifier">upper</span><span class="special">();</span>
</pre>
<p>
Illustrates that we provide versions of the str type's methods as C++ member
functions.
</p>
<pre class="programlisting"><span class="identifier">object</span> <span class="identifier">msg</span> <span class="special">=</span> <span class="string">"%s is bigger than %s"</span> <span class="special">%</span> <span class="identifier">make_tuple</span><span class="special">(</span><span class="identifier">NAME</span><span class="special">,</span><span class="identifier">name</span><span class="special">);</span>
<pre class="programlisting">
<span class="identifier">object</span> <span class="identifier">msg</span> <span class="special">=</span> <span class="string">"%s is bigger than %s"</span> <span class="special">%</span> <span class="identifier">make_tuple</span><span class="special">(</span><span class="identifier">NAME</span><span class="special">,</span><span class="identifier">name</span><span class="special">);</span>
</pre>
<p>
Demonstrates that you can write the C++ equivalent of <tt class="literal">"format"
@@ -176,17 +184,19 @@
<p>
Python:
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="identifier">d</span> <span class="special">=</span> <span class="identifier">dict</span><span class="special">(</span><span class="identifier">x</span><span class="special">.</span><span class="identifier">__dict__</span><span class="special">)</span> <span class="comment"># copies x.__dict__
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">d</span> <span class="special">=</span> <span class="identifier">dict</span><span class="special">(</span><span class="identifier">x</span><span class="special">.</span><span class="identifier">__dict__</span><span class="special">)</span> <span class="comment"># copies x.__dict__
</span><span class="special">&gt;&gt;&gt;</span> <span class="identifier">d</span><span class="special">[</span><span class="string">'whatever'</span><span class="special">]</span> <span class="special">=</span> <span class="number">3</span> <span class="comment"># modifies the copy
</span></pre>
<p>
C++:
</p>
<pre class="programlisting"><span class="identifier">dict</span> <span class="identifier">d</span><span class="special">(</span><span class="identifier">x</span><span class="special">.</span><span class="identifier">attr</span><span class="special">(</span><span class="string">"__dict__"</span><span class="special">));</span> <span class="comment">// copies x.__dict__
<pre class="programlisting">
<span class="identifier">dict</span> <span class="identifier">d</span><span class="special">(</span><span class="identifier">x</span><span class="special">.</span><span class="identifier">attr</span><span class="special">(</span><span class="string">"__dict__"</span><span class="special">));</span> <span class="comment">// copies x.__dict__
</span><span class="identifier">d</span><span class="special">[</span><span class="char">'whatever'</span><span class="special">]</span> <span class="special">=</span> <span class="number">3</span><span class="special">;</span> <span class="comment">// modifies the copy
</span></pre>
<a name="derived_object_types.class__lt_t_gt__as_objects"></a><h2>
<a name="id470756"></a>
<a name="id469586"></a>
class_&lt;T&gt; as objects
</h2>
<p>
@@ -197,7 +207,8 @@
<p>
We can use this to create wrapped instances. Example:
</p>
<pre class="programlisting"><span class="identifier">object</span> <span class="identifier">vec345</span> <span class="special">=</span> <span class="special">(</span>
<pre class="programlisting">
<span class="identifier">object</span> <span class="identifier">vec345</span> <span class="special">=</span> <span class="special">(</span>
<span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">Vec2</span><span class="special">&gt;(</span><span class="string">"Vec2"</span><span class="special">,</span> <span class="identifier">init</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">,</span> <span class="keyword">double</span><span class="special">&gt;())</span>
<span class="special">.</span><span class="identifier">def_readonly</span><span class="special">(</span><span class="string">"length"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">Point</span><span class="special">::</span><span class="identifier">length</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">def_readonly</span><span class="special">(</span><span class="string">"angle"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">Point</span><span class="special">::</span><span class="identifier">angle</span><span class="special">)</span>
@@ -214,14 +225,16 @@
can be achieved with the <tt class="literal">extract&lt;T&gt;</tt> function. Consider
the following:
</p>
<pre class="programlisting"><span class="keyword">double</span> <span class="identifier">x</span> <span class="special">=</span> <span class="identifier">o</span><span class="special">.</span><span class="identifier">attr</span><span class="special">(</span><span class="string">"length"</span><span class="special">);</span> <span class="comment">// compile error
<pre class="programlisting">
<span class="keyword">double</span> <span class="identifier">x</span> <span class="special">=</span> <span class="identifier">o</span><span class="special">.</span><span class="identifier">attr</span><span class="special">(</span><span class="string">"length"</span><span class="special">);</span> <span class="comment">// compile error
</span></pre>
<p>
In the code above, we got a compiler error because Boost.Python <tt class="literal">object</tt>
can't be implicitly converted to <tt class="literal">double</tt>s. Instead, what
we wanted to do above can be achieved by writing:
</p>
<pre class="programlisting"><span class="keyword">double</span> <span class="identifier">l</span> <span class="special">=</span> <span class="identifier">extract</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">o</span><span class="special">.</span><span class="identifier">attr</span><span class="special">(</span><span class="string">"length"</span><span class="special">));</span>
<pre class="programlisting">
<span class="keyword">double</span> <span class="identifier">l</span> <span class="special">=</span> <span class="identifier">extract</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;(</span><span class="identifier">o</span><span class="special">.</span><span class="identifier">attr</span><span class="special">(</span><span class="string">"length"</span><span class="special">));</span>
<span class="identifier">Vec2</span><span class="special">&amp;</span> <span class="identifier">v</span> <span class="special">=</span> <span class="identifier">extract</span><span class="special">&lt;</span><span class="identifier">Vec2</span><span class="special">&amp;&gt;(</span><span class="identifier">o</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">l</span> <span class="special">==</span> <span class="identifier">v</span><span class="special">.</span><span class="identifier">length</span><span class="special">());</span>
</pre>
@@ -238,7 +251,8 @@
be extracted, an appropriate exception is thrown. To avoid an exception,
we need to test for extractibility:
</p>
<pre class="programlisting"><span class="identifier">extract</span><span class="special">&lt;</span><span class="identifier">Vec2</span><span class="special">&amp;&gt;</span> <span class="identifier">x</span><span class="special">(</span><span class="identifier">o</span><span class="special">);</span>
<pre class="programlisting">
<span class="identifier">extract</span><span class="special">&lt;</span><span class="identifier">Vec2</span><span class="special">&amp;&gt;</span> <span class="identifier">x</span><span class="special">(</span><span class="identifier">o</span><span class="special">);</span>
<span class="keyword">if</span> <span class="special">(</span><span class="identifier">x</span><span class="special">.</span><span class="identifier">check</span><span class="special">())</span> <span class="special">{</span>
<span class="identifier">Vec2</span><span class="special">&amp;</span> <span class="identifier">v</span> <span class="special">=</span> <span class="identifier">x</span><span class="special">();</span> <span class="special">...</span>
</pre>
@@ -246,7 +260,8 @@
<span class="inlinemediaobject"><img src="../images/tip.png" alt="tip"></span> The astute reader might have noticed that the <tt class="literal">extract&lt;T&gt;</tt>
facility in fact solves the mutable copying problem:
</p>
<pre class="programlisting"><span class="identifier">dict</span> <span class="identifier">d</span> <span class="special">=</span> <span class="identifier">extract</span><span class="special">&lt;</span><span class="identifier">dict</span><span class="special">&gt;(</span><span class="identifier">x</span><span class="special">.</span><span class="identifier">attr</span><span class="special">(</span><span class="string">"__dict__"</span><span class="special">));</span>
<pre class="programlisting">
<span class="identifier">dict</span> <span class="identifier">d</span> <span class="special">=</span> <span class="identifier">extract</span><span class="special">&lt;</span><span class="identifier">dict</span><span class="special">&gt;(</span><span class="identifier">x</span><span class="special">.</span><span class="identifier">attr</span><span class="special">(</span><span class="string">"__dict__"</span><span class="special">));</span>
<span class="identifier">d</span><span class="special">[</span><span class="string">"whatever"</span><span class="special">]</span> <span class="special">=</span> <span class="number">3</span><span class="special">;</span> <span class="comment">// modifies x.__dict__ !
</span></pre>
</div>
@@ -261,12 +276,14 @@
typing to C++'s strong static typing (in C++, ints cannot be implicitly converted
to enums). To illustrate, given a C++ enum:
</p>
<pre class="programlisting"><span class="keyword">enum</span> <span class="identifier">choice</span> <span class="special">{</span> <span class="identifier">red</span><span class="special">,</span> <span class="identifier">blue</span> <span class="special">};</span>
<pre class="programlisting">
<span class="keyword">enum</span> <span class="identifier">choice</span> <span class="special">{</span> <span class="identifier">red</span><span class="special">,</span> <span class="identifier">blue</span> <span class="special">};</span>
</pre>
<p>
the construct:
</p>
<pre class="programlisting"><span class="identifier">enum_</span><span class="special">&lt;</span><span class="identifier">choice</span><span class="special">&gt;(</span><span class="string">"choice"</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">enum_</span><span class="special">&lt;</span><span class="identifier">choice</span><span class="special">&gt;(</span><span class="string">"choice"</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">value</span><span class="special">(</span><span class="string">"red"</span><span class="special">,</span> <span class="identifier">red</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">value</span><span class="special">(</span><span class="string">"blue"</span><span class="special">,</span> <span class="identifier">blue</span><span class="special">)</span>
<span class="special">;</span>
@@ -298,7 +315,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="identifier">my_module</span><span class="special">.</span><span class="identifier">choice</span><span class="special">.</span><span class="identifier">red</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">my_module</span><span class="special">.</span><span class="identifier">choice</span><span class="special">.</span><span class="identifier">red</span>
<span class="identifier">my_module</span><span class="special">.</span><span class="identifier">choice</span><span class="special">.</span><span class="identifier">red</span>
</pre>
<p>
@@ -307,7 +325,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="identifier">scope</span> <span class="identifier">in_X</span> <span class="special">=</span> <span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">X</span><span class="special">&gt;(</span><span class="string">"X"</span><span class="special">)</span>
<pre class="programlisting">
<span class="identifier">scope</span> <span class="identifier">in_X</span> <span class="special">=</span> <span class="identifier">class_</span><span class="special">&lt;</span><span class="identifier">X</span><span class="special">&gt;(</span><span class="string">"X"</span><span class="special">)</span>
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span> <span class="special">...</span> <span class="special">)</span>
<span class="special">.</span><span class="identifier">def</span><span class="special">(</span> <span class="special">...</span> <span class="special">)</span>
<span class="special">;</span>

View File

@@ -11,10 +11,10 @@
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td>
<td align="center"><a href="../../../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../../../index.htm">Home</a></td>
<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../../../people/people.htm">People</a></td>
<td align="center"><a href="../../../../../../../more/faq.htm">FAQ</a></td>
<td align="center"><a href="../../../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
@@ -53,7 +53,8 @@
<tt class="literal">sounds</tt>. Our library already has a neat C++ namespace hierarchy,
like so:
</p>
<pre class="programlisting"><span class="identifier">sounds</span><span class="special">::</span><span class="identifier">core</span>
<pre class="programlisting">
<span class="identifier">sounds</span><span class="special">::</span><span class="identifier">core</span>
<span class="identifier">sounds</span><span class="special">::</span><span class="identifier">io</span>
<span class="identifier">sounds</span><span class="special">::</span><span class="identifier">filters</span>
</pre>
@@ -61,14 +62,16 @@
We would like to present this same hierarchy to the Python user, allowing
him to write code like this:
</p>
<pre class="programlisting"><span class="keyword">import</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">filters</span>
<pre class="programlisting">
<span class="keyword">import</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">filters</span>
<span class="identifier">sounds</span><span class="special">.</span><span class="identifier">filters</span><span class="special">.</span><span class="identifier">echo</span><span class="special">(...)</span> <span class="comment"># echo is a C++ function
</span></pre>
<p>
The first step is to write the wrapping code. We have to export each module
separately with Boost.Python, like this:
</p>
<pre class="programlisting"><span class="special">/*</span> <span class="identifier">file</span> <span class="identifier">core</span><span class="special">.</span><span class="identifier">cpp</span> <span class="special">*/</span>
<pre class="programlisting">
<span class="special">/*</span> <span class="identifier">file</span> <span class="identifier">core</span><span class="special">.</span><span class="identifier">cpp</span> <span class="special">*/</span>
<span class="identifier">BOOST_PYTHON_MODULE</span><span class="special">(</span><span class="identifier">core</span><span class="special">)</span>
<span class="special">{</span>
<span class="special">/*</span> <span class="identifier">export</span> <span class="identifier">everything</span> <span class="keyword">in</span> <span class="identifier">the</span> <span class="identifier">sounds</span><span class="special">::</span><span class="identifier">core</span> <span class="identifier">namespace</span> <span class="special">*/</span>
@@ -126,7 +129,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">io</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">io</span>
<span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">filters</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">sound</span> <span class="special">=</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">io</span><span class="special">.</span><span class="identifier">open</span><span class="special">(</span><span class="string">'file.mp3'</span><span class="special">)</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">new_sound</span> <span class="special">=</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">filters</span><span class="special">.</span><span class="identifier">echo</span><span class="special">(</span><span class="identifier">sound</span><span class="special">,</span> <span class="number">1.0</span><span class="special">)</span>
@@ -148,7 +152,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="comment">/* file core.cpp */</span>
<pre class="programlisting">
<span class="comment">/* file core.cpp */</span>
<span class="identifier">BOOST_PYTHON_MODULE</span><span class="special">(</span><span class="identifier">_core</span><span class="special">)</span>
<span class="special">{</span>
<span class="special">...</span>
@@ -180,7 +185,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">core</span><span class="special">.</span><span class="identifier">_core</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">core</span><span class="special">.</span><span class="identifier">_core</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">core</span><span class="special">.</span><span class="identifier">_core</span><span class="special">.</span><span class="identifier">foo</span><span class="special">(...)</span>
</pre>
<p>
@@ -190,13 +196,15 @@
entire namespace from <tt class="literal">_core.pyd</tt> to <tt class="literal">core/__init__.py</tt>.
So add this line of code to <tt class="literal">sounds<span class="emphasis"><em>core</em></span>__init__.py</tt>:
</p>
<pre class="programlisting"><span class="keyword">from</span> <span class="identifier">_core</span> <span class="keyword">import</span> <span class="special">*</span>
<pre class="programlisting">
<span class="keyword">from</span> <span class="identifier">_core</span> <span class="keyword">import</span> <span class="special">*</span>
</pre>
<p>
We do the same for the other packages. Now the user accesses the functions
and classes in the extension modules like before:
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">filters</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">filters</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">filters</span><span class="special">.</span><span class="identifier">echo</span><span class="special">(...)</span>
</pre>
<p>
@@ -209,7 +217,8 @@
a file named <tt class="literal">sounds/filters/echo_noise.py</tt> and code our
function:
</p>
<pre class="programlisting"><span class="keyword">import</span> <span class="identifier">_filters</span>
<pre class="programlisting">
<span class="keyword">import</span> <span class="identifier">_filters</span>
<span class="keyword">def</span> <span class="identifier">echo_noise</span><span class="special">(</span><span class="identifier">sound</span><span class="special">):</span>
<span class="identifier">s</span> <span class="special">=</span> <span class="identifier">_filters</span><span class="special">.</span><span class="identifier">echo</span><span class="special">(</span><span class="identifier">sound</span><span class="special">)</span>
<span class="identifier">s</span> <span class="special">=</span> <span class="identifier">_filters</span><span class="special">.</span><span class="identifier">noise</span><span class="special">(</span><span class="identifier">sound</span><span class="special">)</span>
@@ -218,13 +227,15 @@
<p>
Next, we add this line to <tt class="literal">sounds<span class="emphasis"><em>filters</em></span>__init__.py</tt>:
</p>
<pre class="programlisting"><span class="keyword">from</span> <span class="identifier">echo_noise</span> <span class="keyword">import</span> <span class="identifier">echo_noise</span>
<pre class="programlisting">
<span class="keyword">from</span> <span class="identifier">echo_noise</span> <span class="keyword">import</span> <span class="identifier">echo_noise</span>
</pre>
<p>
And that's it. The user now accesses this function like any other function
from the <tt class="literal">filters</tt> package:
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">filters</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="keyword">import</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">filters</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">sounds</span><span class="special">.</span><span class="identifier">filters</span><span class="special">.</span><span class="identifier">echo_noise</span><span class="special">(...)</span>
</pre>
</div>
@@ -235,7 +246,8 @@
Thanks to Python's flexibility, you can easily add new methods to a class,
even after it was already created:
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="keyword">class</span> <span class="identifier">C</span><span class="special">(</span><span class="identifier">object</span><span class="special">):</span> <span class="keyword">pass</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="keyword">class</span> <span class="identifier">C</span><span class="special">(</span><span class="identifier">object</span><span class="special">):</span> <span class="keyword">pass</span>
<span class="special">&gt;&gt;&gt;</span>
<span class="special">&gt;&gt;&gt;</span> <span class="comment"># a regular function
</span><span class="special">&gt;&gt;&gt;</span> <span class="keyword">def</span> <span class="identifier">C_str</span><span class="special">(</span><span class="identifier">self</span><span class="special">):</span> <span class="keyword">return</span> <span class="string">'A C instance!'</span>
@@ -258,7 +270,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">point</span> <span class="special">{...};</span>
<pre class="programlisting">
<span class="keyword">class</span> <span class="identifier">point</span> <span class="special">{...};</span>
<span class="identifier">BOOST_PYTHON_MODULE</span><span class="special">(</span><span class="identifier">_geom</span><span class="special">)</span>
<span class="special">{</span>
@@ -271,7 +284,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="keyword">from</span> <span class="identifier">_geom</span> <span class="keyword">import</span> <span class="special">*</span>
<pre class="programlisting">
<span class="keyword">from</span> <span class="identifier">_geom</span> <span class="keyword">import</span> <span class="special">*</span>
<span class="comment"># a regular function
</span><span class="keyword">def</span> <span class="identifier">point_str</span><span class="special">(</span><span class="identifier">self</span><span class="special">):</span>
@@ -303,7 +317,8 @@
You can even add a little syntactic sugar with the use of metaclasses. Let's
create a special metaclass that "injects" methods in other classes.
</p>
<pre class="programlisting"><span class="comment"># The one Boost.Python uses for all wrapped classes.
<pre class="programlisting">
<span class="comment"># The one Boost.Python uses for all wrapped classes.
</span><span class="comment"># You can use here any class exported by Boost instead of "point"
</span><span class="identifier">BoostPythonMetaclass</span> <span class="special">=</span> <span class="identifier">point</span><span class="special">.</span><span class="identifier">__class__</span>
@@ -326,7 +341,8 @@
<p>
Now let's see how it got:
</p>
<pre class="programlisting"><span class="special">&gt;&gt;&gt;</span> <span class="keyword">print</span> <span class="identifier">point</span><span class="special">()</span>
<pre class="programlisting">
<span class="special">&gt;&gt;&gt;</span> <span class="keyword">print</span> <span class="identifier">point</span><span class="special">()</span>
<span class="identifier">Point</span><span class="special">(</span><span class="identifier">x</span><span class="special">=</span><span class="number">10</span><span class="special">,</span> <span class="identifier">y</span><span class="special">=</span><span class="number">10</span><span class="special">)</span>
<span class="special">&gt;&gt;&gt;</span> <span class="identifier">point</span><span class="special">().</span><span class="identifier">foo</span><span class="special">()</span>
<span class="identifier">foo</span><span class="special">!</span>
@@ -334,7 +350,8 @@
<p>
Another useful idea is to replace constructors with factory functions:
</p>
<pre class="programlisting"><span class="identifier">_point</span> <span class="special">=</span> <span class="identifier">point</span>
<pre class="programlisting">
<span class="identifier">_point</span> <span class="special">=</span> <span class="identifier">point</span>
<span class="keyword">def</span> <span class="identifier">point</span><span class="special">(</span><span class="identifier">x</span><span class="special">=</span><span class="number">0</span><span class="special">,</span> <span class="identifier">y</span><span class="special">=</span><span class="number">0</span><span class="special">):</span>
<span class="keyword">return</span> <span class="identifier">_point</span><span class="special">(</span><span class="identifier">x</span><span class="special">,</span> <span class="identifier">y</span><span class="special">)</span>
@@ -357,7 +374,8 @@
</p>
<p>
</p>
<pre class="programlisting"><span class="comment">/* file point.cpp */</span>
<pre class="programlisting">
<span class="comment">/* file point.cpp */</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">point</span><span class="special">.</span><span class="identifier">h</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">python</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
@@ -379,7 +397,8 @@
Now you create a file <tt class="literal">main.cpp</tt>, which contains the <tt class="literal">BOOST_PYTHON_MODULE</tt>
macro, and call the various export functions inside it.
</p>
<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">export_point</span><span class="special">();</span>
<pre class="programlisting">
<span class="keyword">void</span> <span class="identifier">export_point</span><span class="special">();</span>
<span class="keyword">void</span> <span class="identifier">export_triangle</span><span class="special">();</span>
<span class="identifier">BOOST_PYTHON_MODULE</span><span class="special">(</span><span class="identifier">_geom</span><span class="special">)</span>
@@ -392,7 +411,8 @@
Compiling and linking together all this files produces the same result as
the usual approach:
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">python</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">python</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">point</span><span class="special">.</span><span class="identifier">h</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">triangle</span><span class="special">.</span><span class="identifier">h</span><span class="special">&gt;</span>

View File

@@ -1,5 +1,5 @@
[library python
[version 2.0]
[version 1.0]
[authors [de Guzman, Joel], [Abrahams, David]]
[copyright 2002 2003 2004 2005 Joel de Guzman, David Abrahams]
[category inter-language support]
@@ -1381,10 +1381,10 @@ interpreter. This may be fixed in a future version of boost.python.]
[section Using the interpreter]
As you probably already know, objects in Python are reference-counted.
Naturally, the [^PyObject]s of the Python C API are also reference-counted.
Naturally, the [^PyObject]s of the Python\/C API are also reference-counted.
There is a difference however. While the reference-counting is fully
automatic in Python, the Python C API requires you to do it
[@http://www.python.org/doc/current/c-api/refcounting.html by hand]. This is
automatic in Python, the Python\/C API requires you to do it
[@http://www.python.org/doc/current/api/refcounts.html by hand]. This is
messy and especially hard to get right in the presence of C++ exceptions.
Fortunately Boost.Python provides the [@../../../v2/handle.html handle] and
[@../../../v2/object.html object] class templates to automate the process.
@@ -1466,7 +1466,7 @@ If an exception occurs in the evaluation of the python expression,
The [^error_already_set] exception class doesn't carry any information in itself.
To find out more about the Python exception that occurred, you need to use the
[@http://www.python.org/doc/api/exceptionHandling.html exception handling functions]
of the Python C API in your catch-statement. This can be as simple as calling
of the Python/C API in your catch-statement. This can be as simple as calling
[@http://www.python.org/doc/api/exceptionHandling.html#l2h-70 PyErr_Print()] to
print the exception's traceback to the console, or comparing the type of the
exception with those of the [@http://www.python.org/doc/api/standardExceptions.html

View File

@@ -137,7 +137,7 @@
<td valign="top"><code>P::extract_return_type</code></td>
<td>A model of <a href=
"../../../mpl/doc/refmanual/metafunction.html">Metafunction</a>.</td>
"../../../doc/refmanual/metafunction.html">Metafunction</a>.</td>
<td>An MPL unary <a href=
"../../../mpl/doc/refmanual/metafunction.html">Metafunction</a> used extract the return type from a given signature. By default it is derived from mpl::front.</td>

View File

@@ -106,33 +106,6 @@
function from being treated as an exported symbol on platforms which
support that distinction in-code</td>
</tr>
<tr>
<td valign="top"><code>BOOST_PYTHON_ENABLE_CDECL</code></td>
<td valign="top" align="center"><i>not&nbsp;defined</i></td>
<td valign="top">If defined, allows functions using the <code>__cdecl
</code> calling convention to be wrapped.</td>
</tr>
<tr>
<td valign="top"><code>BOOST_PYTHON_ENABLE_STDCALL</code></td>
<td valign="top" align="center"><i>not&nbsp;defined</i></td>
<td valign="top">If defined, allows functions using the <code>__stdcall
</code> calling convention to be wrapped.</td>
</tr>
<tr>
<td valign="top"><code>BOOST_PYTHON_ENABLE_FASTCALL</code></td>
<td valign="top" align="center"><i>not&nbsp;defined</i></td>
<td valign="top">If defined, allows functions using the <code>__fastcall
</code> calling convention to be wrapped.</td>
</tr>
</table>
<h2><a name="lib-defined-impl"></a>Library Defined Implementation

View File

@@ -655,11 +655,6 @@ namespace boost { namespace python { namespace api
template &lt;class A0, class A1,...class An&gt;
object operator()(A0 const&amp;, A1 const&amp;,...An const&amp;) const;
detail::args_proxy operator* () const;
object operator()(detail::args_proxy const &amp;args) const;
object operator()(detail::args_proxy const &amp;args,
detail::kwds_proxy const &amp;kwds) const;
// truth value testing
//
typedef unspecified bool_type;
@@ -709,25 +704,6 @@ object operator()(A0 const&amp; a1, A1 const&amp; a2,...An const&amp; aN) const;
call&lt;object&gt;(object(*static_cast&lt;U*&gt;(this)).ptr(), a1,
a2,...aN)</dt>
</dl>
<pre>
object operator()(detail::args_proxy const &amp;args) const;
</pre>
<dl class="function-semantics">
<dt><b>Effects:</b>
call object with arguments given by the tuple <varname>args</varname></dt>
</dl>
<pre>
object operator()(detail::args_proxy const &amp;args,
detail::kwds_proxy const &amp;kwds) const;
</pre>
<dl class="function-semantics">
<dt><b>Effects:</b>
call object with arguments given by the tuple <varname>args</varname>, and named
arguments given by the dictionary <varname>kwds</varname></dt>
</dl>
<pre>
operator bool_type() const;
</pre>
@@ -835,8 +811,6 @@ namespace boost { namespace python { namespace api
object&amp; operator=(object const&amp;);
PyObject* ptr() const;
bool is_none() const;
};
}}}
</pre>
@@ -897,14 +871,6 @@ PyObject* ptr() const;
<dt><b>Returns:</b> a pointer to the internally-held Python
object.</dt>
</dl>
<pre>
bool is_none() const;
</pre>
<dl class="function-semantics">
<dt><b>Returns:</b> result of (ptr() == Py_None)</dt>
</dl>
<!-- -->
<h3><a name="proxy-spec"></a>Class template <code>proxy</code></h3>
@@ -1111,7 +1077,7 @@ object sum_items(object seq)
</pre>
<p>Revised
<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->
15 March, 2010
27 May, 2008
<!--webbot bot="Timestamp" endspan i-checksum="39359" -->
</p>

View File

@@ -1,93 +1,112 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0//EN"
"http://www.w3.org/TR/REC-html40/strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Boost.Python Pickle Support</title>
</head>
<title>Boost.Python Pickle Support</title>
<body>
<div>
<img src="../../../../boost.png" alt="boost.png (6897 bytes)" align=
"center" width="277" height="86" />
<hr />
<div>
<h1>Boost.Python Pickle Support</h1>Pickle is a Python module for object
serialization, also known as persistence, marshalling, or flattening.
<img src="../../../../boost.png"
alt="boost.png (6897 bytes)"
align="center"
width="277" height="86">
<p>It is often necessary to save and restore the contents of an object to
a file. One approach to this problem is to write a pair of functions that
read and write data from a file in a special format. A powerful
alternative approach is to use Python's pickle module. Exploiting
Python's ability for introspection, the pickle module recursively
converts nearly arbitrary Python objects into a stream of bytes that can
be written to a file.</p>
<hr>
<h1>Boost.Python Pickle Support</h1>
<p>The Boost Python Library supports the pickle module through the
interface as described in detail in the <a href=
"http://www.python.org/doc/current/lib/module-pickle.html">Python Library
Reference for pickle.</a> This interface involves the special methods
<tt>__getinitargs__</tt>, <tt>__getstate__</tt> and <tt>__setstate__</tt>
as described in the following. Note that Boost.Python is also fully
compatible with Python's cPickle module.</p>
<hr />
Pickle is a Python module for object serialization, also known
as persistence, marshalling, or flattening.
<h2>The Boost.Python Pickle Interface</h2>At the user level, the
Boost.Python pickle interface involves three special methods:
<p>
It is often necessary to save and restore the contents of an object to
a file. One approach to this problem is to write a pair of functions
that read and write data from a file in a special format. A powerful
alternative approach is to use Python's pickle module. Exploiting
Python's ability for introspection, the pickle module recursively
converts nearly arbitrary Python objects into a stream of bytes that
can be written to a file.
<dl>
<dt><strong><tt>__getinitargs__</tt></strong></dt>
<p>
The Boost Python Library supports the pickle module
through the interface as described in detail in the
<a href="http://www.python.org/doc/current/lib/module-pickle.html"
>Python Library Reference for pickle.</a> This interface
involves the special methods <tt>__getinitargs__</tt>,
<tt>__getstate__</tt> and <tt>__setstate__</tt> as described
in the following. Note that Boost.Python is also fully compatible
with Python's cPickle module.
<dd>
When an instance of a Boost.Python extension class is pickled, the
pickler tests if the instance has a <tt>__getinitargs__</tt> method.
This method must return a Python tuple (it is most convenient to use
a boost::python::tuple). When the instance is restored by the
unpickler, the contents of this tuple are used as the arguments for
the class constructor.
<hr>
<h2>The Boost.Python Pickle Interface</h2>
<p>If <tt>__getinitargs__</tt> is not defined, <tt>pickle.load</tt>
will call the constructor (<tt>__init__</tt>) without arguments;
i.e., the object must be default-constructible.</p>
</dd>
At the user level, the Boost.Python pickle interface involves three special
methods:
<dt><strong><tt>__getstate__</tt></strong></dt>
<dl>
<dt>
<strong><tt>__getinitargs__</tt></strong>
<dd>
When an instance of a Boost.Python extension class is pickled, the
pickler tests if the instance has a <tt>__getinitargs__</tt> method.
This method must return a Python tuple (it is most convenient to use
a boost::python::tuple). When the instance is restored by the
unpickler, the contents of this tuple are used as the arguments for
the class constructor.
<dd>When an instance of a Boost.Python extension class is pickled, the
pickler tests if the instance has a <tt>__getstate__</tt> method. This
method should return a Python object representing the state of the
instance.</dd>
<p>
If <tt>__getinitargs__</tt> is not defined, <tt>pickle.load</tt>
will call the constructor (<tt>__init__</tt>) without arguments;
i.e., the object must be default-constructible.
<dt><strong><tt>__setstate__</tt></strong></dt>
<p>
<dt>
<strong><tt>__getstate__</tt></strong>
<dd>When an instance of a Boost.Python extension class is restored by
the unpickler (<tt>pickle.load</tt>), it is first constructed using the
result of <tt>__getinitargs__</tt> as arguments (see above).
Subsequently the unpickler tests if the new instance has a
<tt>__setstate__</tt> method. If so, this method is called with the
result of <tt>__getstate__</tt> (a Python object) as the argument.</dd>
</dl>The three special methods described above may be <tt>.def()</tt>'ed
individually by the user. However, Boost.Python provides an easy to use
high-level interface via the
<strong><tt>boost::python::pickle_suite</tt></strong> class that also
enforces consistency: <tt>__getstate__</tt> and <tt>__setstate__</tt>
must be defined as pairs. Use of this interface is demonstrated by the
following examples.
<hr />
<dd>
When an instance of a Boost.Python extension class is pickled, the
pickler tests if the instance has a <tt>__getstate__</tt> method.
This method should return a Python object representing the state of
the instance.
<h2>Examples</h2>There are three files in <tt>boost/libs/python/test</tt>
that show how to provide pickle support.
<hr />
<p>
<dt>
<strong><tt>__setstate__</tt></strong>
<h3><a href="../../test/pickle1.cpp"><tt>pickle1.cpp</tt></a></h3>The C++
class in this example can be fully restored by passing the appropriate
argument to the constructor. Therefore it is sufficient to define the
pickle interface method <tt>__getinitargs__</tt>. This is done in the
following way:
<dd>
When an instance of a Boost.Python extension class is restored by the
unpickler (<tt>pickle.load</tt>), it is first constructed using the
result of <tt>__getinitargs__</tt> as arguments (see above). Subsequently
the unpickler tests if the new instance has a <tt>__setstate__</tt>
method. If so, this method is called with the result of
<tt>__getstate__</tt> (a Python object) as the argument.
<ul>
<li>1. Definition of the C++ pickle function:
<pre>
</dl>
The three special methods described above may be <tt>.def()</tt>'ed
individually by the user. However, Boost.Python provides an easy to use
high-level interface via the
<strong><tt>boost::python::pickle_suite</tt></strong> class that also
enforces consistency: <tt>__getstate__</tt> and <tt>__setstate__</tt>
must be defined as pairs. Use of this interface is demonstrated by the
following examples.
<hr>
<h2>Examples</h2>
There are three files in
<tt>boost/libs/python/test</tt> that show how to
provide pickle support.
<hr>
<h3><a href="../../test/pickle1.cpp"><tt>pickle1.cpp</tt></a></h3>
The C++ class in this example can be fully restored by passing the
appropriate argument to the constructor. Therefore it is sufficient
to define the pickle interface method <tt>__getinitargs__</tt>.
This is done in the following way:
<ul>
<li>1. Definition of the C++ pickle function:
<pre>
struct world_pickle_suite : boost::python::pickle_suite
{
static
@@ -98,28 +117,26 @@
}
};
</pre>
</li>
<li>2. Establishing the Python binding:
<pre>
<li>2. Establishing the Python binding:
<pre>
class_&lt;world&gt;("world", args&lt;const std::string&amp;&gt;())
// ...
.def_pickle(world_pickle_suite())
// ...
</pre>
</li>
</ul>
<hr />
</ul>
<h3><a href="../../test/pickle2.cpp"><tt>pickle2.cpp</tt></a></h3>The C++
class in this example contains member data that cannot be restored by any
of the constructors. Therefore it is necessary to provide the
<tt>__getstate__</tt>/<tt>__setstate__</tt> pair of pickle interface
methods:
<hr>
<h3><a href="../../test/pickle2.cpp"><tt>pickle2.cpp</tt></a></h3>
<ul>
<li>1. Definition of the C++ pickle functions:
<pre>
The C++ class in this example contains member data that cannot be
restored by any of the constructors. Therefore it is necessary to
provide the <tt>__getstate__</tt>/<tt>__setstate__</tt> pair of
pickle interface methods:
<ul>
<li>1. Definition of the C++ pickle functions:
<pre>
struct world_pickle_suite : boost::python::pickle_suite
{
static
@@ -144,76 +161,92 @@
}
};
</pre>
</li>
<li>2. Establishing the Python bindings for the entire suite:
<pre>
<li>2. Establishing the Python bindings for the entire suite:
<pre>
class_&lt;world&gt;("world", args&lt;const std::string&amp;&gt;())
// ...
.def_pickle(world_pickle_suite())
// ...
</pre>
</li>
</ul>
</ul>
<p>For simplicity, the <tt>__dict__</tt> is not included in the result of
<tt>__getstate__</tt>. This is not generally recommended, but a valid
approach if it is anticipated that the object's <tt>__dict__</tt> will
always be empty. Note that the safety guard described below will catch
the cases where this assumption is violated.</p>
<hr />
<p>
For simplicity, the <tt>__dict__</tt> is not included in the result
of <tt>__getstate__</tt>. This is not generally recommended, but a
valid approach if it is anticipated that the object's
<tt>__dict__</tt> will always be empty. Note that the safety guard
described below will catch the cases where this assumption is violated.
<h3><a href="../../test/pickle3.cpp"><tt>pickle3.cpp</tt></a></h3>This
example is similar to <a href=
"../../test/pickle2.cpp"><tt>pickle2.cpp</tt></a>. However, the object's
<tt>__dict__</tt> is included in the result of <tt>__getstate__</tt>.
This requires a little more code but is unavoidable if the object's
<tt>__dict__</tt> is not always empty.
<hr />
<hr>
<h3><a href="../../test/pickle3.cpp"><tt>pickle3.cpp</tt></a></h3>
<h2>Pitfall and Safety Guard</h2>The pickle protocol described above has
an important pitfall that the end user of a Boost.Python extension module
might not be aware of:
This example is similar to <a
href="../../test/pickle2.cpp"><tt>pickle2.cpp</tt></a>. However, the
object's <tt>__dict__</tt> is included in the result of
<tt>__getstate__</tt>. This requires a little more code but is
unavoidable if the object's <tt>__dict__</tt> is not always empty.
<p><strong><tt>__getstate__</tt> is defined and the instance's
<tt>__dict__</tt> is not empty.</strong></p>
<hr>
<h2>Pitfall and Safety Guard</h2>
<p>The author of a Boost.Python extension class might provide a
<tt>__getstate__</tt> method without considering the possibilities
that:</p>
The pickle protocol described above has an important pitfall that the
end user of a Boost.Python extension module might not be aware of:
<p>
<strong>
<tt>__getstate__</tt> is defined and the instance's <tt>__dict__</tt>
is not empty.
</strong>
<p>
<ul>
<li>his class is used in Python as a base class. Most likely the
<tt>__dict__</tt> of instances of the derived class needs to be pickled
in order to restore the instances correctly.</li>
The author of a Boost.Python extension class might provide a
<tt>__getstate__</tt> method without considering the possibilities
that:
<li>the user adds items to the instance's <tt>__dict__</tt> directly.
Again, the <tt>__dict__</tt> of the instance then needs to be
pickled.</li>
</ul>
<p>
<ul>
<li>
his class is used in Python as a base class. Most likely the
<tt>__dict__</tt> of instances of the derived class needs to be
pickled in order to restore the instances correctly.
<p>To alert the user to this highly unobvious problem, a safety guard is
provided. If <tt>__getstate__</tt> is defined and the instance's
<tt>__dict__</tt> is not empty, Boost.Python tests if the class has an
attribute <tt>__getstate_manages_dict__</tt>. An exception is raised if
this attribute is not defined:</p>
<pre>
<p>
<li>
the user adds items to the instance's <tt>__dict__</tt> directly.
Again, the <tt>__dict__</tt> of the instance then needs to be
pickled.
</ul>
<p>
To alert the user to this highly unobvious problem, a safety guard is
provided. If <tt>__getstate__</tt> is defined and the instance's
<tt>__dict__</tt> is not empty, Boost.Python tests if the class has
an attribute <tt>__getstate_manages_dict__</tt>. An exception is
raised if this attribute is not defined:
<pre>
RuntimeError: Incomplete pickle support (__getstate_manages_dict__ not set)
</pre>To resolve this problem, it should first be established that the <tt>
__getstate__</tt> and <tt>__setstate__</tt> methods manage the
instances's <tt>__dict__</tt> correctly. Note that this can be done
either at the C++ or the Python level. Finally, the safety guard should
intentionally be overridden. E.g. in C++ (from <a href=
"../../test/pickle3.cpp"><tt>pickle3.cpp</tt></a>):
<pre>
</pre>
To resolve this problem, it should first be established that the
<tt>__getstate__</tt> and <tt>__setstate__</tt> methods manage the
instances's <tt>__dict__</tt> correctly. Note that this can be done
either at the C++ or the Python level. Finally, the safety guard
should intentionally be overridden. E.g. in C++ (from
<a href="../../test/pickle3.cpp"><tt>pickle3.cpp</tt></a>):
<pre>
struct world_pickle_suite : boost::python::pickle_suite
{
// ...
static bool getstate_manages_dict() { return true; }
};
</pre>Alternatively in Python:
<pre>
</pre>
Alternatively in Python:
<pre>
import your_bpl_module
class your_class(your_bpl_module.your_class):
__getstate_manages_dict__ = 1
@@ -222,41 +255,54 @@
def __setstate__(self, state):
# your code here
</pre>
<hr />
<h2>Practical Advice</h2>
<hr>
<h2>Practical Advice</h2>
<ul>
<li>In Boost.Python extension modules with many extension classes,
providing complete pickle support for all classes would be a
significant overhead. In general complete pickle support should only be
implemented for extension classes that will eventually be pickled.</li>
<ul>
<li>
In Boost.Python extension modules with many extension classes,
providing complete pickle support for all classes would be a
significant overhead. In general complete pickle support should
only be implemented for extension classes that will eventually
be pickled.
<li>Avoid using <tt>__getstate__</tt> if the instance can also be
reconstructed by way of <tt>__getinitargs__</tt>. This automatically
avoids the pitfall described above.</li>
<p>
<li>
Avoid using <tt>__getstate__</tt> if the instance can also be
reconstructed by way of <tt>__getinitargs__</tt>. This automatically
avoids the pitfall described above.
<li>If <tt>__getstate__</tt> is required, include the instance's
<tt>__dict__</tt> in the Python object that is returned.</li>
</ul>
<hr />
<p>
<li>
If <tt>__getstate__</tt> is required, include the instance's
<tt>__dict__</tt> in the Python object that is returned.
<h2>Light-weight alternative: pickle support implemented in Python</h2>
</ul>
<h3><a href="../../test/pickle4.cpp"><tt>pickle4.cpp</tt></a></h3>The
<tt>pickle4.cpp</tt> example demonstrates an alternative technique for
implementing pickle support. First we direct Boost.Python via the
<tt>class_::enable_pickling()</tt> member function to define only the
basic attributes required for pickling:
<pre>
<hr>
<h2>Light-weight alternative: pickle support implemented in Python</h2>
<h3><a href="../../test/pickle4.cpp"><tt>pickle4.cpp</tt></a></h3>
The <tt>pickle4.cpp</tt> example demonstrates an alternative technique
for implementing pickle support. First we direct Boost.Python via
the <tt>class_::enable_pickling()</tt> member function to define only
the basic attributes required for pickling:
<pre>
class_&lt;world&gt;("world", args&lt;const std::string&amp;&gt;())
// ...
.enable_pickling()
// ...
</pre>This enables the standard Python pickle interface as described in the
Python documentation. By "injecting" a <tt>__getinitargs__</tt> method into
the definition of the wrapped class we make all instances pickleable:
<pre>
</pre>
This enables the standard Python pickle interface as described
in the Python documentation. By &quot;injecting&quot; a
<tt>__getinitargs__</tt> method into the definition of the wrapped
class we make all instances pickleable:
<pre>
# import the wrapped world class
from pickle4_ext import world
@@ -266,15 +312,18 @@ the definition of the wrapped class we make all instances pickleable:
# now inject __getinitargs__ (Python is a dynamic language!)
world.__getinitargs__ = world_getinitargs
</pre>See also the <a href=
"../tutorial/doc/html/python/techniques.html#python.extending_wrapped_objects_in_python">
tutorial section</a> on injecting additional methods from Python.
<hr />
© Copyright Ralf W. Grosse-Kunstleve 2001-2004. Distributed under the
Boost Software License, Version 1.0. (See accompanying file
LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
</pre>
<p>Updated: Feb 2004.</p>
</div>
</body>
</html>
See also the
<a href="../tutorial/doc/html/python/techniques.html#python.extending_wrapped_objects_in_python"
>tutorial section</a> on injecting additional methods from Python.
<hr>
&copy; Copyright Ralf W. Grosse-Kunstleve 2001-2004. Distributed under
the Boost Software License, Version 1.0. (See accompanying file
LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
<p>
Updated: Feb 2004.
</div>

View File

@@ -2,15 +2,6 @@
# Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
import python ;
if ! [ python.configured ]
{
ECHO "notice: no Python configured in user-config.jam" ;
ECHO "notice: will use default configuration" ;
using python ;
}
# Specify the path to the Boost project. If you move this project,
# adjust this path to refer to the Boost root directory.
use-project boost

View File

@@ -38,10 +38,7 @@ namespace boost { namespace python {
# endif // CALL_DWA2002411_HPP
// For gcc 4.4 compatability, we must include the
// BOOST_PP_ITERATION_DEPTH test inside an #else clause.
#else // BOOST_PP_IS_ITERATING
#if BOOST_PP_ITERATION_DEPTH() == 1
#elif BOOST_PP_ITERATION_DEPTH() == 1
# if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100) \
&& BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201)))
# line BOOST_PP_LINE(__LINE__, call.hpp)
@@ -79,5 +76,4 @@ call(PyObject* callable
# undef N
#endif // BOOST_PP_ITERATION_DEPTH()
#endif

View File

@@ -37,10 +37,7 @@ namespace boost { namespace python {
# endif // CALL_METHOD_DWA2002411_HPP
// For gcc 4.4 compatability, we must include the
// BOOST_PP_ITERATION_DEPTH test inside an #else clause.
#else // BOOST_PP_IS_ITERATING
#if BOOST_PP_ITERATION_DEPTH() == 1
#elif BOOST_PP_ITERATION_DEPTH() == 1
# if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100) \
&& BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201)))
# line BOOST_PP_LINE(__LINE__, call_method.hpp)
@@ -79,5 +76,4 @@ call_method(PyObject* self, char const* name
# undef N
#endif // BOOST_PP_ITERATION_DEPTH()
#endif // BOOST_PP_IS_ITERATING

View File

@@ -90,14 +90,6 @@ namespace detail
BOOST_PYTHON_ARG_TO_PYTHON_BY_VALUE(T,expr)
// Specialize converters for signed and unsigned T to Python Int
#if PY_VERSION_HEX >= 0x03000000
# define BOOST_PYTHON_TO_INT(T) \
BOOST_PYTHON_TO_PYTHON_BY_VALUE(signed T, ::PyLong_FromLong(x), &PyLong_Type) \
BOOST_PYTHON_TO_PYTHON_BY_VALUE(unsigned T, ::PyLong_FromUnsignedLong(x), &PyLong_Type)
#else
# define BOOST_PYTHON_TO_INT(T) \
BOOST_PYTHON_TO_PYTHON_BY_VALUE(signed T, ::PyInt_FromLong(x), &PyInt_Type) \
BOOST_PYTHON_TO_PYTHON_BY_VALUE( \
@@ -106,7 +98,6 @@ namespace detail
(std::numeric_limits<long>::max)()) \
? ::PyLong_FromUnsignedLong(x) \
: ::PyInt_FromLong(x), &PyInt_Type)
#endif
// Bool is not signed.
#if PY_VERSION_HEX >= 0x02030000
@@ -125,24 +116,17 @@ BOOST_PYTHON_TO_INT(long)
// using Python's macro instead of Boost's - we don't seem to get the
// config right all the time.
# ifdef HAVE_LONG_LONG
BOOST_PYTHON_TO_PYTHON_BY_VALUE(signed BOOST_PYTHON_LONG_LONG, ::PyLong_FromLongLong(x), &PyLong_Type)
BOOST_PYTHON_TO_PYTHON_BY_VALUE(unsigned BOOST_PYTHON_LONG_LONG, ::PyLong_FromUnsignedLongLong(x), &PyLong_Type)
BOOST_PYTHON_TO_PYTHON_BY_VALUE(signed BOOST_PYTHON_LONG_LONG, ::PyLong_FromLongLong(x), &PyInt_Type)
BOOST_PYTHON_TO_PYTHON_BY_VALUE(unsigned BOOST_PYTHON_LONG_LONG, ::PyLong_FromUnsignedLongLong(x), &PyInt_Type)
# endif
# undef BOOST_TO_PYTHON_INT
#if PY_VERSION_HEX >= 0x03000000
BOOST_PYTHON_TO_PYTHON_BY_VALUE(char, converter::do_return_to_python(x), &PyUnicode_Type)
BOOST_PYTHON_TO_PYTHON_BY_VALUE(char const*, converter::do_return_to_python(x), &PyUnicode_Type)
BOOST_PYTHON_TO_PYTHON_BY_VALUE(std::string, ::PyUnicode_FromStringAndSize(x.data(),implicit_cast<ssize_t>(x.size())), &PyUnicode_Type)
#else
BOOST_PYTHON_TO_PYTHON_BY_VALUE(char, converter::do_return_to_python(x), &PyString_Type)
BOOST_PYTHON_TO_PYTHON_BY_VALUE(char const*, converter::do_return_to_python(x), &PyString_Type)
BOOST_PYTHON_TO_PYTHON_BY_VALUE(std::string, ::PyString_FromStringAndSize(x.data(),implicit_cast<ssize_t>(x.size())), &PyString_Type)
#endif
#if defined(Py_USING_UNICODE) && !defined(BOOST_NO_STD_WSTRING)
BOOST_PYTHON_TO_PYTHON_BY_VALUE(std::wstring, ::PyUnicode_FromWideChar(x.data(),implicit_cast<ssize_t>(x.size())), &PyUnicode_Type)
BOOST_PYTHON_TO_PYTHON_BY_VALUE(std::wstring, ::PyUnicode_FromWideChar(x.data(),implicit_cast<ssize_t>(x.size())), &PyString_Type)
# endif
BOOST_PYTHON_TO_PYTHON_BY_VALUE(float, ::PyFloat_FromDouble(x), &PyFloat_Type)
BOOST_PYTHON_TO_PYTHON_BY_VALUE(double, ::PyFloat_FromDouble(x), &PyFloat_Type)

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@@ -34,9 +34,7 @@ struct pyobject_traits<PyObject>
// This is not an exhaustive list; should be expanded.
BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(Type);
BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(List);
#if PY_VERSION_HEX < 0x03000000
BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(Int);
#endif
BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(Long);
BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(Dict);
BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(Tuple);

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@@ -45,14 +45,10 @@ struct shared_ptr_from_python
if (data->convertible == source)
new (storage) shared_ptr<T>();
else
{
boost::shared_ptr<void> hold_convertible_ref_count(
(void*)0, shared_ptr_deleter(handle<>(borrowed(source))) );
// use aliasing constructor
new (storage) shared_ptr<T>(
hold_convertible_ref_count,
static_cast<T*>(data->convertible));
}
static_cast<T*>(data->convertible),
shared_ptr_deleter(handle<>(borrowed(source)))
);
data->convertible = storage;
}

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@@ -55,8 +55,8 @@ inline decorated_type_info::decorated_type_info(type_info base_t, decoration dec
inline bool decorated_type_info::operator<(decorated_type_info const& rhs) const
{
return m_decoration < rhs.m_decoration
|| (m_decoration == rhs.m_decoration
&& m_base_type < rhs.m_base_type);
|| m_decoration == rhs.m_decoration
&& m_base_type < rhs.m_base_type;
}
inline bool decorated_type_info::operator==(decorated_type_info const& rhs) const

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@@ -30,7 +30,7 @@ struct value_destroyer<
template <class T>
static void execute(T const volatile* p)
{
p->~T();
p->T::~T();
}
};

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@@ -47,11 +47,7 @@ enum operator_id
op_ixor,
op_ior,
op_complex,
#if PY_VERSION_HEX >= 0x03000000
op_bool,
#else
op_nonzero,
#endif
op_repr
};

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@@ -86,10 +86,7 @@ result(X const&, short = 0) { return 0; }
# endif // RESULT_DWA2002521_HPP
/* --------------- function pointers --------------- */
// For gcc 4.4 compatability, we must include the
// BOOST_PP_ITERATION_DEPTH test inside an #else clause.
#else // BOOST_PP_IS_ITERATING
#if BOOST_PP_ITERATION_DEPTH() == 1 && BOOST_PP_ITERATION_FLAGS() == BOOST_PYTHON_FUNCTION_POINTER
#elif BOOST_PP_ITERATION_DEPTH() == 1 && BOOST_PP_ITERATION_FLAGS() == BOOST_PYTHON_FUNCTION_POINTER
# if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100) \
&& BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201)))
# line BOOST_PP_LINE(__LINE__, result.hpp(function pointers))
@@ -131,5 +128,4 @@ boost::type<R>* result(R (T::*)(BOOST_PP_ENUM_PARAMS_Z(1, N, A)) Q, int = 0)
# undef N
# undef Q
#endif // BOOST_PP_ITERATION_DEPTH()
#endif

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@@ -37,10 +37,7 @@ T& (* target(R (T::*)) )() { return 0; }
# endif // TARGET_DWA2002521_HPP
/* --------------- function pointers --------------- */
// For gcc 4.4 compatability, we must include the
// BOOST_PP_ITERATION_DEPTH test inside an #else clause.
#else // BOOST_PP_IS_ITERATING
#if BOOST_PP_ITERATION_DEPTH() == 1 && BOOST_PP_ITERATION_FLAGS() == BOOST_PYTHON_FUNCTION_POINTER
#elif BOOST_PP_ITERATION_DEPTH() == 1 && BOOST_PP_ITERATION_FLAGS() == BOOST_PYTHON_FUNCTION_POINTER
# if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100) \
&& BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201)))
# line BOOST_PP_LINE(__LINE__, target.hpp(function_pointers))
@@ -82,5 +79,4 @@ T& (* target(R (T::*)(BOOST_PP_ENUM_PARAMS_Z(1, N, A)) Q) )()
# undef N
# undef Q
#endif // BOOST_PP_ITERATION_DEPTH()
#endif

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@@ -2,15 +2,13 @@
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef TRANSLATE_EXCEPTION_TDS20091020_HPP
# define TRANSLATE_EXCEPTION_TDS20091020_HPP
#ifndef TRANSLATE_EXCEPTION_DWA2002810_HPP
# define TRANSLATE_EXCEPTION_DWA2002810_HPP
# include <boost/python/detail/exception_handler.hpp>
# include <boost/call_traits.hpp>
# include <boost/type_traits/add_const.hpp>
# include <boost/type_traits/add_reference.hpp>
# include <boost/type_traits/remove_reference.hpp>
# include <boost/function/function0.hpp>

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@@ -175,19 +175,6 @@ typedef int pid_t;
( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
#endif
// Define Python 3 macros for Python 2.x
#if PY_VERSION_HEX < 0x02060000
# define Py_TYPE(o) (((PyObject*)(o))->ob_type)
# define Py_REFCNT(o) (((PyObject*)(o))->ob_refcnt)
# define Py_SIZE(o) (((PyVarObject*)(o))->ob_size)
# define PyVarObject_HEAD_INIT(type, size) \
PyObject_HEAD_INIT(type) size,
#endif
#ifdef __MWERKS__
# pragma warn_possunwant off
#elif _MSC_VER

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@@ -41,7 +41,7 @@ inline enum_<T>::enum_(char const* name, char const* doc )
, &enum_<T>::convertible_from_python
, &enum_<T>::construct
, type_id<T>()
, doc
, doc
)
{
}
@@ -79,11 +79,7 @@ void* enum_<T>::convertible_from_python(PyObject* obj)
template <class T>
void enum_<T>::construct(PyObject* obj, converter::rvalue_from_python_stage1_data* data)
{
#if PY_VERSION_HEX >= 0x03000000
T x = static_cast<T>(PyLong_AS_LONG(obj));
#else
T x = static_cast<T>(PyInt_AS_LONG(obj));
#endif
void* const storage = ((converter::rvalue_from_python_storage<T>*)data)->storage.bytes;
new (storage) T(x);
data->convertible = storage;

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@@ -20,13 +20,6 @@ object
BOOST_PYTHON_DECL
eval(str string, object global = object(), object local = object());
// Execute an individual python statement from str.
// global and local are the global and local scopes respectively,
// used during execution.
object
BOOST_PYTHON_DECL
exec_statement(str string, object global = object(), object local = object());
// Execute python source code from str.
// global and local are the global and local scopes respectively,
// used during execution.

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@@ -19,7 +19,7 @@ namespace detail
{
void append(object_cref); // append object to end
ssize_t count(object_cref value) const; // return number of occurrences of value
long count(object_cref value) const; // return number of occurrences of value
void extend(object_cref sequence); // extend list by appending sequence elements
@@ -37,12 +37,8 @@ namespace detail
void reverse(); // reverse *IN PLACE*
void sort(); // sort *IN PLACE*; if given, cmpfunc(x, y) -> -1, 0, 1
#if PY_VERSION_HEX >= 0x03000000
void sort(args_proxy const &args,
kwds_proxy const &kwds);
#else
void sort(object_cref cmpfunc);
#endif
protected:
list_base(); // new list
@@ -117,15 +113,13 @@ class list : public detail::list_base
base::remove(object(value));
}
#if PY_VERSION_HEX <= 0x03000000
void sort() { base::sort(); }
template <class T>
void sort(T const& value)
{
base::sort(object(value));
}
#endif
public: // implementation detail -- for internal use only
BOOST_PYTHON_FORWARD_OBJECT_CONSTRUCTORS(list, base)

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@@ -63,7 +63,7 @@ struct extract_member
{
static MemberType& execute(InstanceType& c)
{
(void)Py_TYPE(&c); // static assertion
(void)c.ob_type; // static assertion
return c.*member;
}
};
@@ -75,7 +75,7 @@ struct extract_identity
{
static InstanceType& execute(InstanceType& c)
{
(void)Py_TYPE(&c); // static assertion
(void)c.ob_type; // static assertion
return c;
}
};

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@@ -105,12 +105,12 @@ namespace detail
// If the BasePolicy_ supplied a result converter it would be
// ignored; issue an error if it's not the default.
#if defined _MSC_VER && _MSC_VER < 1300
typedef is_same<
typedef is_same<
typename BasePolicy_::result_converter
, default_result_converter
> same_result_converter;
//see above for explanation
BOOST_STATIC_ASSERT(same_result_converter::value) ;
//see above for explanation
BOOST_STATIC_ASSERT(same_result_converter::value) ;
#else
BOOST_MPL_ASSERT_MSG(
(is_same<

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@@ -11,49 +11,40 @@
namespace boost { namespace python { namespace detail {
BOOST_PYTHON_DECL PyObject* init_module(char const* name, void(*)());
BOOST_PYTHON_DECL void init_module(char const* name, void(*)());
}}}
# if PY_VERSION_HEX >= 0x03000000
# if (defined(_WIN32) || defined(__CYGWIN__)) && !defined(BOOST_PYTHON_STATIC_MODULE)
# define _BOOST_PYTHON_MODULE_INIT(name) \
PyObject* PyInit_##name() \
{ \
return boost::python::detail::init_module( \
#name,&init_module_##name); \
} \
void init_module_##name()
# else
# define _BOOST_PYTHON_MODULE_INIT(name) \
void init##name() \
# define BOOST_PYTHON_MODULE_INIT(name) \
void init_module_##name(); \
extern "C" __declspec(dllexport) void init##name() \
{ \
boost::python::detail::init_module( \
#name,&init_module_##name); \
} \
void init_module_##name()
# endif
# if (defined(_WIN32) || defined(__CYGWIN__)) && !defined(BOOST_PYTHON_STATIC_MODULE)
# define BOOST_PYTHON_MODULE_INIT(name) \
void init_module_##name(); \
extern "C" __declspec(dllexport) _BOOST_PYTHON_MODULE_INIT(name)
# elif BOOST_PYTHON_USE_GCC_SYMBOL_VISIBILITY
# define BOOST_PYTHON_MODULE_INIT(name) \
void init_module_##name(); \
extern "C" __attribute__ ((visibility("default"))) _BOOST_PYTHON_MODULE_INIT(name)
extern "C" __attribute__ ((visibility("default"))) void init##name() \
{ \
boost::python::detail::init_module(#name, &init_module_##name); \
} \
void init_module_##name()
# else
# define BOOST_PYTHON_MODULE_INIT(name) \
void init_module_##name(); \
extern "C" _BOOST_PYTHON_MODULE_INIT(name)
extern "C" void init##name() \
{ \
boost::python::detail::init_module(#name, &init_module_##name); \
} \
void init_module_##name()
# endif

View File

@@ -129,11 +129,7 @@ namespace detail
return class_<range_>(name, no_init)
.def("__iter__", identity_function())
.def(
#if PY_VERSION_HEX >= 0x03000000
"__next__"
#else
"next"
#endif
, make_function(
next_fn()
, policies

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@@ -47,10 +47,7 @@ template <int nargs> struct make_holder;
# endif // MAKE_HOLDER_DWA20011215_HPP
// For gcc 4.4 compatability, we must include the
// BOOST_PP_ITERATION_DEPTH test inside an #else clause.
#else // BOOST_PP_IS_ITERATING
#if BOOST_PP_ITERATION_DEPTH() == 1
#elif BOOST_PP_ITERATION_DEPTH() == 1
# if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100) \
&& BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201)))
# line BOOST_PP_LINE(__LINE__, make_holder.hpp)
@@ -105,5 +102,4 @@ struct make_holder<N>
# undef N
#endif // BOOST_PP_ITERATION_DEPTH()
#endif

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@@ -10,7 +10,6 @@
# include <boost/python/converter/registered.hpp>
# include <boost/python/detail/decref_guard.hpp>
# include <boost/python/detail/none.hpp>
# include <boost/type_traits/is_union.hpp>
namespace boost { namespace python { namespace objects {
@@ -22,7 +21,7 @@ struct make_instance_impl
template <class Arg>
static inline PyObject* execute(Arg& x)
{
BOOST_MPL_ASSERT((mpl::or_<is_class<T>, is_union<T> >));
BOOST_STATIC_ASSERT(is_class<T>::value);
PyTypeObject* type = Derived::get_class_object(x);
@@ -44,7 +43,7 @@ struct make_instance_impl
// Note the position of the internally-stored Holder,
// for the sake of destruction
Py_SIZE(instance) = offsetof(instance_t, storage);
instance->ob_size = offsetof(instance_t, storage);
// Release ownership of the python object
protect.cancel();

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@@ -35,8 +35,6 @@
# include <boost/detail/workaround.hpp>
# include <boost/type_traits/remove_const.hpp>
namespace boost { namespace python {
template <class T> class wrapper;
@@ -124,29 +122,26 @@ inline pointer_holder_back_reference<Pointer,Value>::pointer_holder_back_referen
template <class Pointer, class Value>
void* pointer_holder<Pointer, Value>::holds(type_info dst_t, bool null_ptr_only)
{
typedef typename boost::remove_const< Value >::type non_const_value;
if (dst_t == python::type_id<Pointer>()
&& !(null_ptr_only && get_pointer(this->m_p))
)
return &this->m_p;
Value* p0
Value* p
# if BOOST_WORKAROUND(__SUNPRO_CC, BOOST_TESTED_AT(0x590))
= static_cast<Value*>( get_pointer(this->m_p) )
# else
= get_pointer(this->m_p)
# endif
;
non_const_value* p = const_cast<non_const_value*>( p0 );
if (p == 0)
return 0;
if (void* wrapped = holds_wrapped(dst_t, p, p))
return wrapped;
type_info src_t = python::type_id<non_const_value>();
type_info src_t = python::type_id<Value>();
return src_t == dst_t ? p : find_dynamic_type(p, src_t, dst_t);
}
@@ -175,10 +170,7 @@ void* pointer_holder_back_reference<Pointer, Value>::holds(type_info dst_t, bool
# endif // POINTER_HOLDER_DWA20011215_HPP
/* --------------- pointer_holder --------------- */
// For gcc 4.4 compatability, we must include the
// BOOST_PP_ITERATION_DEPTH test inside an #else clause.
#else // BOOST_PP_IS_ITERATING
#if BOOST_PP_ITERATION_DEPTH() == 1 && BOOST_PP_ITERATION_FLAGS() == 1
#elif BOOST_PP_ITERATION_DEPTH() == 1 && BOOST_PP_ITERATION_FLAGS() == 1
# if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100) \
&& BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201)))
# line BOOST_PP_LINE(__LINE__, pointer_holder.hpp)
@@ -220,5 +212,4 @@ void* pointer_holder_back_reference<Pointer, Value>::holds(type_info dst_t, bool
# undef N
#endif // BOOST_PP_ITERATION_DEPTH()
#endif

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@@ -117,10 +117,7 @@ void* value_holder_back_reference<Value,Held>::holds(
// --------------- value_holder ---------------
// For gcc 4.4 compatability, we must include the
// BOOST_PP_ITERATION_DEPTH test inside an #else clause.
#else // BOOST_PP_IS_ITERATING
#if BOOST_PP_ITERATION_DEPTH() == 1 && BOOST_PP_ITERATION_FLAGS() == 1
#elif BOOST_PP_ITERATION_DEPTH() == 1 && BOOST_PP_ITERATION_FLAGS() == 1
# if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100) \
&& BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201)))
# line BOOST_PP_LINE(__LINE__, value_holder.hpp(value_holder))
@@ -166,5 +163,4 @@ void* value_holder_back_reference<Value,Held>::holds(
# undef N
#endif // BOOST_PP_ITERATION_DEPTH()
#endif

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@@ -5,8 +5,6 @@
#ifndef OBJECT_CORE_DWA2002615_HPP
# define OBJECT_CORE_DWA2002615_HPP
# define BOOST_PYTHON_OBJECT_HAS_IS_NONE // added 2010-03-15 by rwgk
# include <boost/python/detail/prefix.hpp>
# include <boost/type.hpp>
@@ -44,12 +42,6 @@
namespace boost { namespace python {
namespace detail
{
class kwds_proxy;
class args_proxy;
}
namespace converter
{
template <class T> struct arg_to_python;
@@ -110,11 +102,6 @@ namespace api
# define BOOST_PP_ITERATION_PARAMS_1 (3, (1, BOOST_PYTHON_MAX_ARITY, <boost/python/object_call.hpp>))
# include BOOST_PP_ITERATE()
detail::args_proxy operator* () const;
object operator()(detail::args_proxy const &args) const;
object operator()(detail::args_proxy const &args,
detail::kwds_proxy const &kwds) const;
// truth value testing
//
@@ -128,10 +115,6 @@ namespace api
const_object_objattribute attr(object const&) const;
object_objattribute attr(object const&);
// Wrap 'in' operator (aka. __contains__)
template <class T>
object contains(T const& key) const;
// item access
//
const_object_item operator[](object_cref) const;
@@ -236,14 +219,12 @@ namespace api
inline object_base(object_base const&);
inline object_base(PyObject* ptr);
inline object_base& operator=(object_base const& rhs);
inline ~object_base();
object_base& operator=(object_base const& rhs);
~object_base();
// Underlying object access -- returns a borrowed reference
inline PyObject* ptr() const;
inline bool is_none() const;
PyObject* ptr() const;
private:
PyObject* m_ptr;
};
@@ -412,7 +393,7 @@ namespace api
static PyObject*
get(T const& x, U)
{
return python::incref(get_managed_object(x, boost::python::tag));
return python::incref(get_managed_object(x, tag));
}
};
@@ -435,71 +416,6 @@ template <class T> struct extract;
// implementation
//
namespace detail
{
class call_proxy
{
public:
call_proxy(object target) : m_target(target) {}
operator object() const { return m_target;}
private:
object m_target;
};
class kwds_proxy : public call_proxy
{
public:
kwds_proxy(object o = object()) : call_proxy(o) {}
};
class args_proxy : public call_proxy
{
public:
args_proxy(object o) : call_proxy(o) {}
kwds_proxy operator* () const { return kwds_proxy(*this);}
};
}
template <typename U>
detail::args_proxy api::object_operators<U>::operator* () const
{
object_cref2 x = *static_cast<U const*>(this);
return boost::python::detail::args_proxy(x);
}
template <typename U>
object api::object_operators<U>::operator()(detail::args_proxy const &args) const
{
U const& self = *static_cast<U const*>(this);
PyObject *result = PyObject_Call(get_managed_object(self, boost::python::tag),
args.operator object().ptr(),
0);
return object(boost::python::detail::new_reference(result));
}
template <typename U>
object api::object_operators<U>::operator()(detail::args_proxy const &args,
detail::kwds_proxy const &kwds) const
{
U const& self = *static_cast<U const*>(this);
PyObject *result = PyObject_Call(get_managed_object(self, boost::python::tag),
args.operator object().ptr(),
kwds.operator object().ptr());
return object(boost::python::detail::new_reference(result));
}
template <typename U>
template <class T>
object api::object_operators<U>::contains(T const& key) const
{
return this->attr("__contains__")(object(key));
}
inline object::object()
: object_base(python::incref(Py_None))
{}
@@ -543,11 +459,6 @@ inline PyObject* api::object_base::ptr() const
return m_ptr;
}
inline bool api::object_base::is_none() const
{
return (m_ptr == Py_None);
}
//
// Converter specialization implementations
//

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@@ -60,9 +60,7 @@ inline
object_operators<U>::operator bool_type() const
{
object_cref2 x = *static_cast<U const*>(this);
int is_true = PyObject_IsTrue(x.ptr());
if (is_true < 0) throw_error_already_set();
return is_true ? &object::ptr : 0;
return PyObject_IsTrue(x.ptr()) ? &object::ptr : 0;
}
template <class U>
@@ -70,9 +68,7 @@ inline bool
object_operators<U>::operator!() const
{
object_cref2 x = *static_cast<U const*>(this);
int is_true = PyObject_IsTrue(x.ptr());
if (is_true < 0) throw_error_already_set();
return !is_true;
return !PyObject_IsTrue(x.ptr());
}
# define BOOST_PYTHON_COMPARE_OP(op, opid) \

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@@ -121,7 +121,8 @@ opaque<Pointee> opaque<Pointee>::instance;
template <class Pointee>
PyTypeObject opaque<Pointee>::type_object =
{
PyVarObject_HEAD_INIT(NULL, 0)
PyObject_HEAD_INIT(0)
0,
0,
sizeof( BOOST_DEDUCED_TYPENAME opaque<Pointee>::python_instance ),
0,

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@@ -341,11 +341,7 @@ BOOST_PYTHON_UNARY_OPERATOR(neg, -, operator-)
BOOST_PYTHON_UNARY_OPERATOR(pos, +, operator+)
BOOST_PYTHON_UNARY_OPERATOR(abs, abs, abs)
BOOST_PYTHON_UNARY_OPERATOR(invert, ~, operator~)
#if PY_VERSION_HEX >= 0x03000000
BOOST_PYTHON_UNARY_OPERATOR(bool, !!, operator!)
#else
BOOST_PYTHON_UNARY_OPERATOR(nonzero, !!, operator!)
#endif
BOOST_PYTHON_UNARY_OPERATOR(int, long, int_)
BOOST_PYTHON_UNARY_OPERATOR(long, PyLong_FromLong, long_)
BOOST_PYTHON_UNARY_OPERATOR(float, double, float_)

View File

@@ -8,7 +8,7 @@
// http://www.boost.org/LICENSE_1_0.txt)
//
// Based on boost/ref.hpp, thus:
// Copyright (C) 1999, 2000 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 1999, 2000 Jaakko Järvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2001 Peter Dimov
# if _MSC_VER+0 >= 1020

View File

@@ -52,23 +52,16 @@ struct most_derived
//
// template <class RT, class T0... class TN>
// inline mpl::vector<RT, T0...TN>
// get_signature(RT(BOOST_PYTHON_FN_CC *)(T0...TN), void* = 0)
// get_signature(RT(*)(T0...TN), void* = 0)
// {
// return mpl::list<RT, T0...TN>();
// }
//
// where BOOST_PYTHON_FN_CC is a calling convention keyword, can be
//
// empty, for default calling convention
// __cdecl (if BOOST_PYTHON_ENABLE_CDECL is defined)
// __stdcall (if BOOST_PYTHON_ENABLE_STDCALL is defined)
// __fastcall (if BOOST_PYTHON_ENABLE_FASTCALL is defined)
//
// And, for an appropriate assortment of cv-qualifications::
//
// template <class RT, class ClassT, class T0... class TN>
// inline mpl::vector<RT, ClassT&, T0...TN>
// get_signature(RT(BOOST_PYTHON_FN_CC ClassT::*)(T0...TN) cv))
// get_signature(RT(ClassT::*)(T0...TN) cv))
// {
// return mpl::list<RT, ClassT&, T0...TN>();
// }
@@ -79,7 +72,7 @@ struct most_derived
// , typename most_derived<Target, ClassT>::type&
// , T0...TN
// >
// get_signature(RT(BOOST_PYTHON_FN_CC ClassT::*)(T0...TN) cv), Target*)
// get_signature(RT(ClassT::*)(T0...TN) cv), Target*)
// {
// return mpl::list<RT, ClassT&, T0...TN>();
// }
@@ -94,8 +87,7 @@ struct most_derived
//
// These functions extract the return type, class (for member
// functions) and arguments of the input signature and stuff them in
// an mpl type sequence (the calling convention is dropped).
// Note that cv-qualification is dropped from
// an mpl type sequence. Note that cv-qualification is dropped from
// the "hidden this" argument of member functions; that is a
// necessary sacrifice to ensure that an lvalue from_python converter
// is used. A pointer is not used so that None will be rejected for
@@ -108,64 +100,10 @@ struct most_derived
//
// @group {
// 'default' calling convention
# define BOOST_PYTHON_FN_CC
# define BOOST_PP_ITERATION_PARAMS_1 \
(3, (0, BOOST_PYTHON_MAX_ARITY, <boost/python/signature.hpp>))
# include BOOST_PP_ITERATE()
# undef BOOST_PYTHON_FN_CC
// __cdecl calling convention
# if defined(BOOST_PYTHON_ENABLE_CDECL)
# define BOOST_PYTHON_FN_CC __cdecl
# define BOOST_PYTHON_FN_CC_IS_CDECL
# define BOOST_PP_ITERATION_PARAMS_1 \
(3, (0, BOOST_PYTHON_MAX_ARITY, <boost/python/signature.hpp>))
# include BOOST_PP_ITERATE()
# undef BOOST_PYTHON_FN_CC
# undef BOOST_PYTHON_FN_CC_IS_CDECL
# endif // defined(BOOST_PYTHON_ENABLE_CDECL)
// __stdcall calling convention
# if defined(BOOST_PYTHON_ENABLE_STDCALL)
# define BOOST_PYTHON_FN_CC __stdcall
# define BOOST_PP_ITERATION_PARAMS_1 \
(3, (0, BOOST_PYTHON_MAX_ARITY, <boost/python/signature.hpp>))
# include BOOST_PP_ITERATE()
# undef BOOST_PYTHON_FN_CC
# endif // defined(BOOST_PYTHON_ENABLE_STDCALL)
// __fastcall calling convention
# if defined(BOOST_PYTHON_ENABLE_FASTCALL)
# define BOOST_PYTHON_FN_CC __fastcall
# define BOOST_PP_ITERATION_PARAMS_1 \
(3, (0, BOOST_PYTHON_MAX_ARITY, <boost/python/signature.hpp>))
# include BOOST_PP_ITERATE()
# undef BOOST_PYTHON_FN_CC
# endif // defined(BOOST_PYTHON_ENABLE_FASTCALL)
# undef BOOST_PYTHON_LIST_INC
// }
@@ -175,31 +113,21 @@ struct most_derived
# endif // SIGNATURE_JDG20020813_HPP
// For gcc 4.4 compatability, we must include the
// BOOST_PP_ITERATION_DEPTH test inside an #else clause.
#else // BOOST_PP_IS_ITERATING
#if BOOST_PP_ITERATION_DEPTH() == 1 // defined(BOOST_PP_IS_ITERATING)
#elif BOOST_PP_ITERATION_DEPTH() == 1 // defined(BOOST_PP_IS_ITERATING)
# define N BOOST_PP_ITERATION()
// as 'get_signature(RT(*)(T0...TN), void* = 0)' is the same
// function as 'get_signature(RT(__cdecl *)(T0...TN), void* = 0)',
// we don't define it twice
# if !defined(BOOST_PYTHON_FN_CC_IS_CDECL)
template <
class RT BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, class T)>
inline BOOST_PYTHON_LIST_INC(N)<
RT BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, T)>
get_signature(RT(BOOST_PYTHON_FN_CC *)(BOOST_PP_ENUM_PARAMS_Z(1, N, T)), void* = 0)
get_signature(RT(*)(BOOST_PP_ENUM_PARAMS_Z(1, N, T)), void* = 0)
{
return BOOST_PYTHON_LIST_INC(N)<
RT BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, T)
>();
}
# endif // !defined(BOOST_PYTHON_FN_CC_IS_CDECL)
# undef N
# define BOOST_PP_ITERATION_PARAMS_2 \
@@ -215,7 +143,7 @@ template <
class RT, class ClassT BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, class T)>
inline BOOST_PYTHON_LIST_INC(BOOST_PP_INC(N))<
RT, ClassT& BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, T)>
get_signature(RT(BOOST_PYTHON_FN_CC ClassT::*)(BOOST_PP_ENUM_PARAMS_Z(1, N, T)) Q)
get_signature(RT(ClassT::*)(BOOST_PP_ENUM_PARAMS_Z(1, N, T)) Q)
{
return BOOST_PYTHON_LIST_INC(BOOST_PP_INC(N))<
RT, ClassT& BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, T)
@@ -234,7 +162,7 @@ inline BOOST_PYTHON_LIST_INC(BOOST_PP_INC(N))<
BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, T)
>
get_signature(
RT(BOOST_PYTHON_FN_CC ClassT::*)(BOOST_PP_ENUM_PARAMS_Z(1, N, T)) Q
RT(ClassT::*)(BOOST_PP_ENUM_PARAMS_Z(1, N, T)) Q
, Target*
)
{
@@ -248,5 +176,4 @@ get_signature(
# undef Q
# undef N
#endif // BOOST_PP_ITERATION_DEPTH()
#endif // !defined(BOOST_PP_IS_ITERATING)

View File

@@ -37,12 +37,10 @@ namespace detail
long count(object_cref sub, object_cref start, object_cref end) const;
#if PY_VERSION_HEX < 0x03000000
object decode() const;
object decode(object_cref encoding) const;
object decode(object_cref encoding, object_cref errors) const;
#endif
object encode() const;
object encode(object_cref encoding) const;
@@ -187,7 +185,6 @@ class str : public detail::str_base
return base::count(object(sub), object(start));
}
#if PY_VERSION_HEX < 0x03000000
object decode() const { return base::decode(); }
template<class T>
@@ -201,7 +198,6 @@ class str : public detail::str_base
{
return base::decode(object(encoding),object(errors));
}
#endif
object encode() const { return base::encode(); }
@@ -408,11 +404,7 @@ namespace converter
{
template <>
struct object_manager_traits<str>
#if PY_VERSION_HEX >= 0x03000000
: pytype_object_manager_traits<&PyUnicode_Type,str>
#else
: pytype_object_manager_traits<&PyString_Type,str>
#endif
{
};
}

View File

@@ -37,20 +37,12 @@ void shared_ptr_deleter::operator()(void const*)
namespace
{
// An lvalue conversion function which extracts a char const* from a
// Python String.
#if PY_VERSION_HEX < 0x03000000
void* convert_to_cstring(PyObject* obj)
{
return PyString_Check(obj) ? PyString_AsString(obj) : 0;
}
#else
void* convert_to_cstring(PyObject* obj)
{
return PyUnicode_Check(obj) ? _PyUnicode_AsString(obj) : 0;
}
#endif
// Given a target type and a SlotPolicy describing how to perform a
// given conversion, registers from_python converters which use the
@@ -98,52 +90,6 @@ namespace
}
};
// identity_unaryfunc/py_object_identity -- manufacture a unaryfunc
// "slot" which just returns its argument.
extern "C" PyObject* identity_unaryfunc(PyObject* x)
{
Py_INCREF(x);
return x;
}
unaryfunc py_object_identity = identity_unaryfunc;
#if PY_VERSION_HEX >= 0x03000000
// As in Python 3 there is only one integer type, we can have much
// simplified logic.
// XXX(bhy) maybe the code will work with 2.6 or even 2.5?
struct int_rvalue_from_python_base
{
static unaryfunc* get_slot(PyObject* obj)
{
return PyLong_Check(obj) ? &py_object_identity : 0;
}
static PyTypeObject const* get_pytype() {return &PyLong_Type;}
};
template <class T>
struct signed_int_rvalue_from_python : int_rvalue_from_python_base
{
static T extract(PyObject* intermediate)
{
long x = PyLong_AsLong(intermediate);
if (PyErr_Occurred())
throw_error_already_set();
return numeric_cast<T>(x);
}
};
template <class T>
struct unsigned_int_rvalue_from_python : int_rvalue_from_python_base
{
static T extract(PyObject* intermediate)
{
unsigned long x = PyLong_AsUnsignedLong(intermediate);
if (PyErr_Occurred())
throw_error_already_set();
return numeric_cast<T>(x);
}
};
#else // PY_VERSION_HEX >= 0x03000000
// A SlotPolicy for extracting signed integer types from Python objects
struct signed_int_rvalue_from_python_base
{
@@ -153,13 +99,8 @@ namespace
if (number_methods == 0)
return 0;
return (
#if PY_VERSION_HEX >= 0x02040000 && defined(BOOST_PYTHON_BOOL_INT_STRICT)
!PyBool_Check(obj) &&
#endif
(PyInt_Check(obj) || PyLong_Check(obj)))
? &number_methods->nb_int : 0;
return (PyInt_Check(obj) || PyLong_Check(obj))
? &number_methods->nb_int : 0;
}
static PyTypeObject const* get_pytype() { return &PyInt_Type;}
};
@@ -175,7 +116,16 @@ namespace
return numeric_cast<T>(x);
}
};
// identity_unaryfunc/py_object_identity -- manufacture a unaryfunc
// "slot" which just returns its argument.
extern "C" PyObject* identity_unaryfunc(PyObject* x)
{
Py_INCREF(x);
return x;
}
unaryfunc py_object_identity = identity_unaryfunc;
// A SlotPolicy for extracting unsigned integer types from Python objects
struct unsigned_int_rvalue_from_python_base
{
@@ -185,11 +135,7 @@ namespace
if (number_methods == 0)
return 0;
return (
#if PY_VERSION_HEX >= 0x02040000 && defined(BOOST_PYTHON_BOOL_INT_STRICT)
!PyBool_Check(obj) &&
#endif
(PyInt_Check(obj) || PyLong_Check(obj)))
return (PyInt_Check(obj) || PyLong_Check(obj))
? &py_object_identity : 0;
}
static PyTypeObject const* get_pytype() { return &PyInt_Type;}
@@ -200,30 +146,12 @@ namespace
{
static T extract(PyObject* intermediate)
{
if (PyLong_Check(intermediate)) {
// PyLong_AsUnsignedLong() checks for negative overflow, so no
// need to check it here.
unsigned long result = PyLong_AsUnsignedLong(intermediate);
if (PyErr_Occurred())
throw_error_already_set();
return numeric_cast<T>(result);
} else {
// None of PyInt_AsUnsigned*() functions check for negative
// overflow, so use PyInt_AS_LONG instead and check if number is
// negative, issuing the exception appropriately.
long result = PyInt_AS_LONG(intermediate);
if (PyErr_Occurred())
throw_error_already_set();
if (result < 0) {
PyErr_SetString(PyExc_OverflowError, "can't convert negative"
" value to unsigned");
throw_error_already_set();
}
return numeric_cast<T>(result);
}
return numeric_cast<T>(
PyLong_Check(intermediate)
? PyLong_AsUnsignedLong(intermediate)
: PyInt_AS_LONG(intermediate));
}
};
#endif // PY_VERSION_HEX >= 0x03000000
// Checking Python's macro instead of Boost's - we don't seem to get
// the config right all the time. Furthermore, Python's is defined
@@ -236,9 +164,6 @@ namespace
{
static unaryfunc* get_slot(PyObject* obj)
{
#if PY_VERSION_HEX >= 0x03000000
return PyLong_Check(obj) ? &py_object_identity : 0;
#else
PyNumberMethods* number_methods = obj->ob_type->tp_as_number;
if (number_methods == 0)
return 0;
@@ -251,22 +176,19 @@ namespace
return &number_methods->nb_long;
else
return 0;
#endif
}
static PyTypeObject const* get_pytype() { return &PyLong_Type;}
static PyTypeObject const* get_pytype() { return &PyInt_Type;}
};
struct long_long_rvalue_from_python : long_long_rvalue_from_python_base
{
static BOOST_PYTHON_LONG_LONG extract(PyObject* intermediate)
{
#if PY_VERSION_HEX < 0x03000000
if (PyInt_Check(intermediate))
{
return PyInt_AS_LONG(intermediate);
}
else
#endif
{
BOOST_PYTHON_LONG_LONG result = PyLong_AsLongLong(intermediate);
@@ -282,13 +204,11 @@ namespace
{
static unsigned BOOST_PYTHON_LONG_LONG extract(PyObject* intermediate)
{
#if PY_VERSION_HEX < 0x03000000
if (PyInt_Check(intermediate))
{
return numeric_cast<unsigned BOOST_PYTHON_LONG_LONG>(PyInt_AS_LONG(intermediate));
}
else
#endif
{
unsigned BOOST_PYTHON_LONG_LONG result = PyLong_AsUnsignedLongLong(intermediate);
@@ -306,13 +226,7 @@ namespace
{
static unaryfunc* get_slot(PyObject* obj)
{
#if PY_VERSION_HEX >= 0x03000000
return obj == Py_None || PyLong_Check(obj) ? &py_object_identity : 0;
#elif PY_VERSION_HEX >= 0x02040000 && defined(BOOST_PYTHON_BOOL_INT_STRICT)
return obj == Py_None || PyBool_Check(obj) ? &py_object_identity : 0;
#else
return obj == Py_None || PyInt_Check(obj) ? &py_object_identity : 0;
#endif
}
static bool extract(PyObject* intermediate)
@@ -341,10 +255,8 @@ namespace
// For integer types, return the tp_int conversion slot to avoid
// creating a new object. We'll handle that below
#if PY_VERSION_HEX < 0x03000000
if (PyInt_Check(obj))
return &number_methods->nb_int;
#endif
return (PyLong_Check(obj) || PyFloat_Check(obj))
? &number_methods->nb_float : 0;
@@ -352,13 +264,11 @@ namespace
static double extract(PyObject* intermediate)
{
#if PY_VERSION_HEX < 0x03000000
if (PyInt_Check(intermediate))
{
return PyInt_AS_LONG(intermediate);
}
else
#endif
{
return PyFloat_AS_DOUBLE(intermediate);
}
@@ -366,36 +276,22 @@ namespace
static PyTypeObject const* get_pytype() { return &PyFloat_Type;}
};
unaryfunc py_unicode_as_string_unaryfunc = PyUnicode_AsUTF8String;
// A SlotPolicy for extracting C++ strings from Python objects.
struct string_rvalue_from_python
{
// If the underlying object is "string-able" this will succeed
static unaryfunc* get_slot(PyObject* obj)
{
#if PY_VERSION_HEX >= 0x03000000
return (PyUnicode_Check(obj)) ? &py_unicode_as_string_unaryfunc : 0;
#else
return (PyString_Check(obj)) ? &obj->ob_type->tp_str : 0;
#endif
return (PyString_Check(obj))
? &obj->ob_type->tp_str : 0;
};
// Remember that this will be used to construct the result object
#if PY_VERSION_HEX >= 0x03000000
static std::string extract(PyObject* intermediate)
{
return std::string(PyBytes_AsString(intermediate),PyBytes_Size(intermediate));
}
static PyTypeObject const* get_pytype() { return &PyUnicode_Type;}
#else
static std::string extract(PyObject* intermediate)
{
return std::string(PyString_AsString(intermediate),PyString_Size(intermediate));
}
static PyTypeObject const* get_pytype() { return &PyString_Type;}
#endif
};
#if defined(Py_USING_UNICODE) && !defined(BOOST_NO_STD_WSTRING)
@@ -415,11 +311,7 @@ namespace
{
return PyUnicode_Check(obj)
? &py_object_identity
#if PY_VERSION_HEX >= 0x03000000
: PyBytes_Check(obj)
#else
: PyString_Check(obj)
#endif
? &py_encode_string
: 0;
};
@@ -462,12 +354,10 @@ namespace
PyComplex_RealAsDouble(intermediate)
, PyComplex_ImagAsDouble(intermediate));
}
#if PY_VERSION_HEX < 0x03000000
else if (PyInt_Check(intermediate))
{
return PyInt_AS_LONG(intermediate);
}
#endif
else
{
return PyFloat_AS_DOUBLE(intermediate);
@@ -479,20 +369,12 @@ namespace
BOOST_PYTHON_DECL PyObject* do_return_to_python(char x)
{
#if PY_VERSION_HEX >= 0x03000000
return PyUnicode_FromStringAndSize(&x, 1);
#else
return PyString_FromStringAndSize(&x, 1);
#endif
}
BOOST_PYTHON_DECL PyObject* do_return_to_python(char const* x)
{
#if PY_VERSION_HEX >= 0x03000000
return x ? PyUnicode_FromString(x) : boost::python::detail::none();
#else
return x ? PyString_FromString(x) : boost::python::detail::none();
#endif
}
BOOST_PYTHON_DECL PyObject* do_return_to_python(PyObject* x)
@@ -547,18 +429,13 @@ void initialize_builtin_converters()
slot_rvalue_from_python<std::complex<long double>,complex_rvalue_from_python>();
// Add an lvalue converter for char which gets us char const*
#if PY_VERSION_HEX < 0x03000000
registry::insert(convert_to_cstring,type_id<char>(),&converter::wrap_pytype<&PyString_Type>::get_pytype);
#else
registry::insert(convert_to_cstring,type_id<char>(),&converter::wrap_pytype<&PyUnicode_Type>::get_pytype);
#endif
// Register by-value converters to std::string, std::wstring
#if defined(Py_USING_UNICODE) && !defined(BOOST_NO_STD_WSTRING)
slot_rvalue_from_python<std::wstring, wstring_rvalue_from_python>();
# endif
slot_rvalue_from_python<std::string, string_rvalue_from_python>();
}
}}} // namespace boost::python::converter

View File

@@ -96,12 +96,7 @@ BOOST_PYTHON_DECL void* rvalue_from_python_stage2(
if (!data.convertible)
{
handle<> msg(
#if PY_VERSION_HEX >= 0x03000000
::PyUnicode_FromFormat
#else
::PyString_FromFormat
#endif
(
::PyString_FromFormat(
"No registered converter was able to produce a C++ rvalue of type %s from this Python object of type %s"
, converters.target_type.name()
, source->ob_type->tp_name
@@ -201,12 +196,7 @@ namespace
void throw_no_lvalue_from_python(PyObject* source, registration const& converters, char const* ref_type)
{
handle<> msg(
#if PY_VERSION_HEX >= 0x03000000
::PyUnicode_FromFormat
#else
::PyString_FromFormat
#endif
(
::PyString_FromFormat(
"No registered converter was able to extract a C++ %s to type %s"
" from this Python object of type %s"
, ref_type
@@ -228,12 +218,7 @@ namespace
if (source->ob_refcnt <= 1)
{
handle<> msg(
#if PY_VERSION_HEX >= 0x3000000
::PyUnicode_FromFormat
#else
::PyString_FromFormat
#endif
(
::PyString_FromFormat(
"Attempt to return dangling %s to object of type: %s"
, ref_type
, converters.target_type.name()));

View File

@@ -70,12 +70,7 @@ BOOST_PYTHON_DECL PyObject* registration::to_python(void const volatile* source)
if (this->m_to_python == 0)
{
handle<> msg(
#if PY_VERSION_HEX >= 0x3000000
::PyUnicode_FromFormat
#else
::PyString_FromFormat
#endif
(
::PyString_FromFormat(
"No to_python (by-value) converter found for C++ type: %s"
, this->target_type.name()
)

View File

@@ -84,7 +84,7 @@ object dict_base::get(object_cref k, object_cref d) const
bool dict_base::has_key(object_cref k) const
{
return extract<bool>(this->contains(k));
return extract<bool>(this->attr("has_key")(k));
}
list dict_base::items() const

View File

@@ -5,7 +5,6 @@
#include <boost/python/exec.hpp>
#include <boost/python/borrowed.hpp>
#include <boost/python/dict.hpp>
#include <boost/python/extract.hpp>
#include <boost/python/handle.hpp>
@@ -16,15 +15,6 @@ namespace python
object BOOST_PYTHON_DECL eval(str string, object global, object local)
{
// Set suitable default values for global and local dicts.
if (global.is_none())
{
if (PyObject *g = PyEval_GetGlobals())
global = object(detail::borrowed_reference(g));
else
global = dict();
}
if (local.is_none()) local = global;
// should be 'char const *' but older python versions don't use 'const' yet.
char *s = python::extract<char *>(string);
PyObject* result = PyRun_String(s, Py_eval_input, global.ptr(), local.ptr());
@@ -34,15 +24,6 @@ object BOOST_PYTHON_DECL eval(str string, object global, object local)
object BOOST_PYTHON_DECL exec(str string, object global, object local)
{
// Set suitable default values for global and local dicts.
if (global.is_none())
{
if (PyObject *g = PyEval_GetGlobals())
global = object(detail::borrowed_reference(g));
else
global = dict();
}
if (local.is_none()) local = global;
// should be 'char const *' but older python versions don't use 'const' yet.
char *s = python::extract<char *>(string);
PyObject* result = PyRun_String(s, Py_file_input, global.ptr(), local.ptr());
@@ -50,53 +31,18 @@ object BOOST_PYTHON_DECL exec(str string, object global, object local)
return object(detail::new_reference(result));
}
object BOOST_PYTHON_DECL exec_statement(str string, object global, object local)
{
// Set suitable default values for global and local dicts.
if (global.is_none())
{
if (PyObject *g = PyEval_GetGlobals())
global = object(detail::borrowed_reference(g));
else
global = dict();
}
if (local.is_none()) local = global;
// should be 'char const *' but older python versions don't use 'const' yet.
char *s = python::extract<char *>(string);
PyObject* result = PyRun_String(s, Py_single_input, global.ptr(), local.ptr());
if (!result) throw_error_already_set();
return object(detail::new_reference(result));
}
// Execute python source code from file filename.
// global and local are the global and local scopes respectively,
// used during execution.
object BOOST_PYTHON_DECL exec_file(str filename, object global, object local)
{
// Set suitable default values for global and local dicts.
if (global.is_none())
{
if (PyObject *g = PyEval_GetGlobals())
global = object(detail::borrowed_reference(g));
else
global = dict();
}
if (local.is_none()) local = global;
// should be 'char const *' but older python versions don't use 'const' yet.
char *f = python::extract<char *>(filename);
#if PY_VERSION_HEX >= 0x03000000
// TODO(bhy) temporary workaround for Python 3.
// should figure out a way to avoid binary incompatibilities as the Python 2
// version did.
FILE *fs = fopen(f, "r");
#else
// Let python open the file to avoid potential binary incompatibilities.
PyObject *pyfile = PyFile_FromString(f, const_cast<char*>("r"));
if (!pyfile) throw std::invalid_argument(std::string(f) + " : no such file");
python::handle<> file(pyfile);
FILE *fs = PyFile_AsFile(file.get());
#endif
PyObject* result = PyRun_File(fs,
PyObject* result = PyRun_File(PyFile_AsFile(file.get()),
f,
Py_file_input,
global.ptr(), local.ptr());

View File

@@ -48,11 +48,7 @@ void list_base::extend(object_cref sequence)
long list_base::index(object_cref value) const
{
object result_obj(this->attr("index")(value));
#if PY_VERSION_HEX >= 0x03000000
ssize_t result = PyLong_AsSsize_t(result_obj.ptr());
#else
long result = PyInt_AsLong(result_obj.ptr());
#endif
if (result == -1)
throw_error_already_set();
return result;
@@ -73,11 +69,7 @@ void list_base::insert(ssize_t index, object_cref item)
void list_base::insert(object const& index, object_cref x)
{
#if PY_VERSION_HEX >= 0x03000000
ssize_t index_ = PyLong_AsSsize_t(index.ptr());
#else
long index_ = PyInt_AsLong(index.ptr());
#endif
if (index_ == -1 && PyErr_Occurred())
throw_error_already_set();
this->insert(index_, x);
@@ -129,29 +121,17 @@ void list_base::sort()
}
}
#if PY_VERSION_HEX >= 0x03000000
void list_base::sort(args_proxy const &args,
kwds_proxy const &kwds)
{
this->attr("sort")(args, kwds);
}
#else
void list_base::sort(object_cref cmpfunc)
{
this->attr("sort")(cmpfunc);
}
#endif
// For some reason, moving this to the end of the TU suppresses an ICE
// with vc6.
ssize_t list_base::count(object_cref value) const
long list_base::count(object_cref value) const
{
object result_obj(this->attr("count")(value));
#if PY_VERSION_HEX >= 0x03000000
ssize_t result = PyLong_AsSsize_t(result_obj.ptr());
#else
long result = PyInt_AsLong(result_obj.ptr());
#endif
if (result == -1)
throw_error_already_set();
return result;

View File

@@ -24,25 +24,11 @@ namespace
PyMethodDef initial_methods[] = { { 0, 0, 0, 0 } };
}
BOOST_PYTHON_DECL PyObject* init_module(char const* name, void(*init_function)())
BOOST_PYTHON_DECL void init_module(char const* name, void(*init_function)())
{
#if PY_VERSION_HEX >= 0x03000000
static struct PyModuleDef moduledef = {
PyModuleDef_HEAD_INIT,
name,
0, /* m_doc */
-1, /* m_size */
initial_methods,
0, /* m_reload */
0, /* m_traverse */
0, /* m_clear */
0, /* m_free */
};
PyObject* m = PyModule_Create(&moduledef);
#else
PyObject* m
= Py_InitModule(const_cast<char*>(name), initial_methods);
#endif
if (m != 0)
{
@@ -52,7 +38,6 @@ BOOST_PYTHON_DECL PyObject* init_module(char const* name, void(*init_function)()
handle_exception(init_function);
}
return m;
}
}}} // namespace boost::python::detail

View File

@@ -67,44 +67,8 @@ extern "C"
PyObject *prop_set;
PyObject *prop_del;
PyObject *prop_doc;
int getter_doc;
} propertyobject;
// Copied from Python source and removed the part for setting docstring,
// since we don't have a setter for __doc__ and trying to set it will
// cause the init fail.
static int property_init(PyObject *self, PyObject *args, PyObject *kwds)
{
PyObject *get = NULL, *set = NULL, *del = NULL, *doc = NULL;
static char *kwlist[] = {"fget", "fset", "fdel", "doc", 0};
propertyobject *prop = (propertyobject *)self;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "|OOOO:property",
kwlist, &get, &set, &del, &doc))
return -1;
if (get == Py_None)
get = NULL;
if (set == Py_None)
set = NULL;
if (del == Py_None)
del = NULL;
Py_XINCREF(get);
Py_XINCREF(set);
Py_XINCREF(del);
Py_XINCREF(doc);
prop->prop_get = get;
prop->prop_set = set;
prop->prop_del = del;
prop->prop_doc = doc;
prop->getter_doc = 0;
return 0;
}
static PyObject *
static_data_descr_get(PyObject *self, PyObject * /*obj*/, PyObject * /*type*/)
{
@@ -142,9 +106,10 @@ extern "C"
}
static PyTypeObject static_data_object = {
PyVarObject_HEAD_INIT(NULL, 0)
PyObject_HEAD_INIT(0)//&PyType_Type)
0,
const_cast<char*>("Boost.Python.StaticProperty"),
sizeof(propertyobject),
PyType_Type.tp_basicsize,
0,
0, /* tp_dealloc */
0, /* tp_print */
@@ -178,11 +143,11 @@ static PyTypeObject static_data_object = {
static_data_descr_get, /* tp_descr_get */
static_data_descr_set, /* tp_descr_set */
0, /* tp_dictoffset */
property_init, /* tp_init */
0, /* tp_init */
0, /* tp_alloc */
0, // filled in with type_new /* tp_new */
0, // filled in with __PyObject_GC_Del /* tp_free */
0, /* tp_is_gc */
(inquiry)type_is_gc, /* tp_is_gc */
0, /* tp_bases */
0, /* tp_mro */
0, /* tp_cache */
@@ -195,20 +160,17 @@ static PyTypeObject static_data_object = {
namespace objects
{
#if PY_VERSION_HEX < 0x03000000
// XXX Not sure why this run into compiling error in Python 3
extern "C"
{
// This declaration needed due to broken Python 2.2 headers
extern DL_IMPORT(PyTypeObject) PyProperty_Type;
}
#endif
BOOST_PYTHON_DECL PyObject* static_data()
{
if (static_data_object.tp_dict == 0)
{
Py_TYPE(&static_data_object) = &PyType_Type;
static_data_object.ob_type = &PyType_Type;
static_data_object.tp_base = &PyProperty_Type;
if (PyType_Ready(&static_data_object))
return 0;
@@ -241,14 +203,15 @@ extern "C"
// If we found a static data descriptor, call it directly to
// force it to set the static data member
if (a != 0 && PyObject_IsInstance(a, objects::static_data()))
return Py_TYPE(a)->tp_descr_set(a, obj, value);
return a->ob_type->tp_descr_set(a, obj, value);
else
return PyType_Type.tp_setattro(obj, name, value);
}
}
static PyTypeObject class_metatype_object = {
PyVarObject_HEAD_INIT(NULL, 0)
PyObject_HEAD_INIT(0)//&PyType_Type)
0,
const_cast<char*>("Boost.Python.class"),
PyType_Type.tp_basicsize,
0,
@@ -303,7 +266,7 @@ static PyTypeObject class_metatype_object = {
// object.
void instance_holder::install(PyObject* self) throw()
{
assert(Py_TYPE(Py_TYPE(self)) == &class_metatype_object);
assert(self->ob_type->ob_type == &class_metatype_object);
m_next = ((objects::instance<>*)self)->objects;
((objects::instance<>*)self)->objects = this;
}
@@ -316,7 +279,7 @@ namespace objects
{
if (class_metatype_object.tp_dict == 0)
{
Py_TYPE(&class_metatype_object) = &PyType_Type;
class_metatype_object.ob_type = &PyType_Type;
class_metatype_object.tp_base = &PyType_Type;
if (PyType_Ready(&class_metatype_object))
return type_handle();
@@ -345,7 +308,7 @@ namespace objects
Py_XDECREF(kill_me->dict);
Py_TYPE(inst)->tp_free(inst);
inst->ob_type->tp_free(inst);
}
static PyObject *
@@ -355,12 +318,7 @@ namespace objects
PyObject* d = type_->tp_dict;
PyObject* instance_size_obj = PyObject_GetAttrString(d, const_cast<char*>("__instance_size__"));
ssize_t instance_size = instance_size_obj ?
#if PY_VERSION_HEX >= 0x03000000
PyLong_AsSsize_t(instance_size_obj) : 0;
#else
PyInt_AsLong(instance_size_obj) : 0;
#endif
long instance_size = instance_size_obj ? PyInt_AsLong(instance_size_obj) : 0;
if (instance_size < 0)
instance_size = 0;
@@ -374,12 +332,7 @@ namespace objects
// like, so we'll store the total size of the object
// there. A negative number indicates that the extra
// instance memory is not yet allocated to any holders.
#if PY_VERSION_HEX >= 0x02060000
Py_SIZE(result) =
#else
result->ob_size =
#endif
-(static_cast<int>(offsetof(instance<>,storage) + instance_size));
result->ob_size = -(static_cast<int>(offsetof(instance<>,storage) + instance_size));
}
return (PyObject*)result;
}
@@ -415,7 +368,8 @@ namespace objects
};
static PyTypeObject class_type_object = {
PyVarObject_HEAD_INIT(NULL, 0)
PyObject_HEAD_INIT(0) //&class_metatype_object)
0,
const_cast<char*>("Boost.Python.instance"),
offsetof(instance<>,storage), /* tp_basicsize */
1, /* tp_itemsize */
@@ -470,7 +424,7 @@ namespace objects
{
if (class_type_object.tp_dict == 0)
{
Py_TYPE(&class_type_object) = incref(class_metatype().get());
class_type_object.ob_type = incref(class_metatype().get());
class_type_object.tp_base = &PyBaseObject_Type;
if (PyType_Ready(&class_type_object))
return type_handle();
@@ -482,7 +436,7 @@ namespace objects
BOOST_PYTHON_DECL void*
find_instance_impl(PyObject* inst, type_info type, bool null_shared_ptr_only)
{
if (Py_TYPE(Py_TYPE(inst)) != &class_metatype_object)
if (inst->ob_type->ob_type != &class_metatype_object)
return 0;
instance<>* self = reinterpret_cast<instance<>*>(inst);
@@ -552,12 +506,13 @@ namespace objects
// Build a tuple of the base Python type objects. If no bases
// were declared, we'll use our class_type() as the single base
// class.
ssize_t const num_bases = (std::max)(num_types - 1, static_cast<std::size_t>(1));
handle<> bases(PyTuple_New(num_bases));
std::size_t const num_bases = (std::max)(num_types - 1, static_cast<std::size_t>(1));
assert(num_bases <= ssize_t_max);
handle<> bases(PyTuple_New(static_cast<ssize_t>(num_bases)));
for (ssize_t i = 1; i <= num_bases; ++i)
for (std::size_t i = 1; i <= num_bases; ++i)
{
type_handle c = (i >= static_cast<ssize_t>(num_types)) ? class_type() : get_class(types[i]);
type_handle c = (i >= num_types) ? class_type() : get_class(types[i]);
// PyTuple_SET_ITEM steals this reference
PyTuple_SET_ITEM(bases.get(), static_cast<ssize_t>(i - 1), upcast<PyObject>(c.release()));
}
@@ -572,7 +527,7 @@ namespace objects
d["__doc__"] = doc;
object result = object(class_metatype())(name, bases, d);
assert(PyType_IsSubtype(Py_TYPE(result.ptr()), &PyType_Type));
assert(PyType_IsSubtype(result.ptr()->ob_type, &PyType_Type));
if (scope().ptr() != Py_None)
scope().attr(name) = result;
@@ -635,9 +590,8 @@ namespace objects
void class_base::add_static_property(char const* name, object const& fget)
{
object property(
(python::detail::new_reference)
PyObject_CallFunction(static_data(), const_cast<char*>("O"), fget.ptr())
);
(python::detail::new_reference)
PyObject_CallFunction(static_data(), const_cast<char*>("O"), fget.ptr()));
this->setattr(name, property);
}
@@ -697,7 +651,7 @@ namespace objects
::PyErr_Format(
PyExc_TypeError
, const_cast<char*>("staticmethod expects callable object; got an object of type %s, which is not callable")
, Py_TYPE(callable)->tp_name
, callable->ob_type->tp_name
);
throw_error_already_set();
@@ -727,18 +681,18 @@ namespace objects
void* instance_holder::allocate(PyObject* self_, std::size_t holder_offset, std::size_t holder_size)
{
assert(Py_TYPE(Py_TYPE(self_)) == &class_metatype_object);
assert(self_->ob_type->ob_type == &class_metatype_object);
objects::instance<>* self = (objects::instance<>*)self_;
int total_size_needed = holder_offset + holder_size;
if (-Py_SIZE(self) >= total_size_needed)
if (-self->ob_size >= total_size_needed)
{
// holder_offset should at least point into the variable-sized part
assert(holder_offset >= offsetof(objects::instance<>,storage));
// Record the fact that the storage is occupied, noting where it starts
Py_SIZE(self) = holder_offset;
self->ob_size = holder_offset;
return (char*)self + holder_offset;
}
else
@@ -752,9 +706,9 @@ void* instance_holder::allocate(PyObject* self_, std::size_t holder_offset, std:
void instance_holder::deallocate(PyObject* self_, void* storage) throw()
{
assert(Py_TYPE(Py_TYPE(self_)) == &class_metatype_object);
assert(self_->ob_type->ob_type == &class_metatype_object);
objects::instance<>* self = (objects::instance<>*)self_;
if (storage != (char*)self + Py_SIZE(self))
if (storage != (char*)self + self->ob_size)
{
PyMem_Free(storage);
}

View File

@@ -14,15 +14,11 @@
#include <boost/python/object_protocol.hpp>
#include <structmember.h>
namespace boost { namespace python { namespace objects {
namespace boost { namespace python { namespace objects {
struct enum_object
{
#if PY_VERSION_HEX >= 0x03000000
PyLongObject base_object;
#else
PyIntObject base_object;
#endif
PyObject* name;
};
@@ -36,32 +32,19 @@ extern "C"
{
static PyObject* enum_repr(PyObject* self_)
{
// XXX(bhy) Potentional memory leak here since PyObject_GetAttrString returns a new reference
// const char *mod = PyString_AsString(PyObject_GetAttrString( self_, const_cast<char*>("__module__")));
PyObject *mod = PyObject_GetAttrString( self_, "__module__");
const char *mod = PyString_AsString(PyObject_GetAttrString( self_, const_cast<char*>("__module__")));
enum_object* self = downcast<enum_object>(self_);
if (!self->name)
{
return
#if PY_VERSION_HEX >= 0x03000000
PyUnicode_FromFormat("%S.%s(%ld)", mod, self_->ob_type->tp_name, PyLong_AsLong(self_));
#else
PyString_FromFormat("%s.%s(%ld)", PyString_AsString(mod), self_->ob_type->tp_name, PyInt_AS_LONG(self_));
#endif
return PyString_FromFormat("%s.%s(%ld)", mod, self_->ob_type->tp_name, PyInt_AS_LONG(self_));
}
else
{
PyObject* name = self->name;
char* name = PyString_AsString(self->name);
if (name == 0)
return 0;
return
#if PY_VERSION_HEX >= 0x03000000
PyUnicode_FromFormat("%S.%s.%S", mod, self_->ob_type->tp_name, name);
#else
PyString_FromFormat("%s.%s.%s",
PyString_AsString(mod), self_->ob_type->tp_name, PyString_AsString(name));
#endif
return PyString_FromFormat("%s.%s.%s", mod, self_->ob_type->tp_name, name);
}
}
@@ -70,11 +53,7 @@ extern "C"
enum_object* self = downcast<enum_object>(self_);
if (!self->name)
{
#if PY_VERSION_HEX >= 0x03000000
return PyLong_Type.tp_str(self_);
#else
return PyInt_Type.tp_str(self_);
#endif
}
else
{
@@ -84,7 +63,8 @@ extern "C"
}
static PyTypeObject enum_type_object = {
PyVarObject_HEAD_INIT(NULL, 0) // &PyType_Type
PyObject_HEAD_INIT(0) // &PyType_Type
0,
const_cast<char*>("Boost.Python.enum"),
sizeof(enum_object), /* tp_basicsize */
0, /* tp_itemsize */
@@ -104,9 +84,7 @@ static PyTypeObject enum_type_object = {
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT
#if PY_VERSION_HEX < 0x03000000
| Py_TPFLAGS_CHECKTYPES
#endif
| Py_TPFLAGS_HAVE_GC
| Py_TPFLAGS_BASETYPE, /* tp_flags */
0, /* tp_doc */
@@ -147,12 +125,8 @@ namespace
{
if (enum_type_object.tp_dict == 0)
{
Py_TYPE(&enum_type_object) = incref(&PyType_Type);
#if PY_VERSION_HEX >= 0x03000000
enum_type_object.tp_base = &PyLong_Type;
#else
enum_type_object.ob_type = incref(&PyType_Type);
enum_type_object.tp_base = &PyInt_Type;
#endif
if (PyType_Ready(&enum_type_object))
throw_error_already_set();
}
@@ -165,16 +139,15 @@ namespace
dict d;
d["__slots__"] = tuple();
d["values"] = dict();
d["names"] = dict();
object module_name = module_prefix();
if (module_name)
d["__module__"] = module_name;
if (doc)
d["__doc__"] = doc;
object result = (object(metatype))(name, make_tuple(base), d);
scope().attr(name) = result;
return result;
@@ -194,7 +167,7 @@ enum_base::enum_base(
converter::registration& converters
= const_cast<converter::registration&>(
converter::registry::lookup(id));
converters.m_class_object = downcast<PyTypeObject>(this->ptr());
converter::registry::insert(to_python, id);
converter::registry::insert(convertible, construct, id);
@@ -213,24 +186,23 @@ void enum_base::add_value(char const* name_, long value)
dict d = extract<dict>(this->attr("values"))();
d[value] = x;
// Set the name field in the new enum instanec
enum_object* p = downcast<enum_object>(x.ptr());
Py_XDECREF(p->name);
p->name = incref(name.ptr());
dict names_dict = extract<dict>(this->attr("names"))();
names_dict[x.attr("name")] = x;
}
void enum_base::export_values()
{
dict d = extract<dict>(this->attr("names"))();
list items = d.items();
dict d = extract<dict>(this->attr("values"))();
list values = d.values();
scope current;
for (unsigned i = 0, max = len(items); i < max; ++i)
api::setattr(current, items[i][0], items[i][1]);
for (unsigned i = 0, max = len(values); i < max; ++i)
{
api::setattr(current, object(values[i].attr("name")), values[i]);
}
}
PyObject* enum_base::to_python(PyTypeObject* type_, long x)

View File

@@ -105,9 +105,9 @@ function::function(
}
PyObject* p = this;
if (Py_TYPE(&function_type) == 0)
if (function_type.ob_type == 0)
{
Py_TYPE(&function_type) = &PyType_Type;
function_type.ob_type = &PyType_Type;
::PyType_Ready(&function_type);
}
@@ -144,7 +144,7 @@ PyObject* function::call(PyObject* args, PyObject* keywords) const
if (n_keyword_actual > 0 // Keyword arguments were supplied
|| n_actual < min_arity) // or default keyword values are needed
{
if (f->m_arg_names.is_none())
if (f->m_arg_names.ptr() == Py_None)
{
// this overload doesn't accept keywords
inner_args = handle<>();
@@ -166,7 +166,7 @@ PyObject* function::call(PyObject* args, PyObject* keywords) const
else
{
// build a new arg tuple, will adjust its size later
assert(max_arity <= static_cast<std::size_t>(ssize_t_max));
assert(max_arity <= ssize_t_max);
inner_args = handle<>(
PyTuple_New(static_cast<ssize_t>(max_arity)));
@@ -435,13 +435,9 @@ void function::add_to_namespace(
function* new_func = downcast<function>(attribute.ptr());
PyObject* dict = 0;
#if PY_VERSION_HEX < 0x03000000
// Old-style class gone in Python 3
if (PyClass_Check(ns))
dict = ((PyClassObject*)ns)->cl_dict;
else
#endif
if (PyType_Check(ns))
else if (PyType_Check(ns))
dict = ((PyTypeObject*)ns)->tp_dict;
else
dict = PyObject_GetAttrString(ns, const_cast<char*>("__dict__"));
@@ -487,7 +483,7 @@ void function::add_to_namespace(
}
// A function is named the first time it is added to a namespace.
if (new_func->name().is_none())
if (new_func->name().ptr() == Py_None)
new_func->m_name = name;
handle<> name_space_name(
@@ -599,18 +595,9 @@ extern "C"
static PyObject *
function_descr_get(PyObject *func, PyObject *obj, PyObject *type_)
{
#if PY_VERSION_HEX >= 0x03000000
// The implement is different in Python 3 because of the removal of unbound method
if (obj == Py_None || obj == NULL) {
Py_INCREF(func);
return func;
}
return PyMethod_New(func, obj);
#else
if (obj == Py_None)
obj = NULL;
return PyMethod_New(func, obj, type_);
#endif
}
static void
@@ -653,12 +640,8 @@ extern "C"
static PyObject* function_get_name(PyObject* op, void*)
{
function* f = downcast<function>(op);
if (f->name().is_none())
#if PY_VERSION_HEX >= 0x03000000
return PyUnicode_InternFromString("<unnamed Boost.Python function>");
#else
if (f->name().ptr() == Py_None)
return PyString_InternFromString("<unnamed Boost.Python function>");
#endif
else
return python::incref(f->name().ptr());
}
@@ -682,7 +665,8 @@ static PyGetSetDef function_getsetlist[] = {
};
PyTypeObject function_type = {
PyVarObject_HEAD_INIT(NULL, 0)
PyObject_HEAD_INIT(0)
0,
const_cast<char*>("Boost.Python.function"),
sizeof(function),
0,

View File

@@ -3,9 +3,6 @@
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// boost::python::make_tuple below are for gcc 4.4 -std=c++0x compatibility
// (Intel C++ 10 and 11 with -std=c++0x don't need the full qualification).
#include <boost/python/converter/registrations.hpp>
#include <boost/python/object/function_doc_signature.hpp>
#include <boost/python/errors.hpp>
@@ -15,6 +12,7 @@
#include <boost/python/detail/signature.hpp>
#include <vector>
namespace boost { namespace python { namespace objects {
@@ -54,9 +52,9 @@ namespace boost { namespace python { namespace objects {
//check if the argument default values are the same
bool f1_has_names = bool(f1->m_arg_names);
bool f2_has_names = bool(f2->m_arg_names);
if ( (f1_has_names && f2_has_names && f2->m_arg_names[i-1]!=f1->m_arg_names[i-1])
|| (f1_has_names && !f2_has_names)
|| (!f1_has_names && f2_has_names && f2->m_arg_names[i-1]!=python::object())
if ( f1_has_names && f2_has_names && f2->m_arg_names[i-1]!=f1->m_arg_names[i-1]
|| f1_has_names && !f2_has_names
|| !f1_has_names && f2_has_names && f2->m_arg_names[i-1]!=python::object()
)
return false;
}
@@ -230,7 +228,7 @@ namespace boost { namespace python { namespace objects {
{
return str(
"%s %s(%s%s%s%s)"
% boost::python::make_tuple // workaround, see top
% make_tuple
( ret_type
, f->m_name
, str(",").join(formal_params.slice(0,arity-n_overloads))
@@ -241,7 +239,7 @@ namespace boost { namespace python { namespace objects {
}else{
return str(
"%s(%s%s%s%s) -> %s"
% boost::python::make_tuple // workaround, see top
% make_tuple
( f->m_name
, str(",").join(formal_params.slice(0,arity-n_overloads))
, n_overloads ? (n_overloads!=arity?str(" [,"):str("[ ")) : str()
@@ -253,7 +251,7 @@ namespace boost { namespace python { namespace objects {
return str(
"%s %s(%s%s%s%s) %s"
% boost::python::make_tuple // workaround, see top
% make_tuple
( cpp_types?ret_type:str("")
, f->m_name
, str(",").join(formal_params.slice(0,arity-n_overloads))

View File

@@ -10,7 +10,7 @@
#endif
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/reverse_graph.hpp>
#include <boost/property_map/property_map.hpp>
#include <boost/property_map.hpp>
#include <boost/bind.hpp>
#include <boost/integer_traits.hpp>
#include <boost/tuple/tuple.hpp>

View File

@@ -36,7 +36,8 @@ extern "C"
}
PyTypeObject life_support_type = {
PyVarObject_HEAD_INIT(NULL, 0)//(&PyType_Type)
PyObject_HEAD_INIT(0)//(&PyType_Type)
0,
const_cast<char*>("Boost.Python.life_support"),
sizeof(life_support),
0,
@@ -91,9 +92,9 @@ PyObject* make_nurse_and_patient(PyObject* nurse, PyObject* patient)
if (nurse == Py_None || nurse == patient)
return nurse;
if (Py_TYPE(&life_support_type) == 0)
if (life_support_type.ob_type == 0)
{
Py_TYPE(&life_support_type) = &PyType_Type;
life_support_type.ob_type = &PyType_Type;
PyType_Ready(&life_support_type);
}

View File

@@ -38,21 +38,21 @@ namespace {
}
object getinitargs = getattr(instance_obj, "__getinitargs__", none);
tuple initargs;
if (!getinitargs.is_none()) {
if (getinitargs.ptr() != none.ptr()) {
initargs = tuple(getinitargs());
}
result.append(initargs);
object getstate = getattr(instance_obj, "__getstate__", none);
object instance_dict = getattr(instance_obj, "__dict__", none);
long len_instance_dict = 0;
if (!instance_dict.is_none()) {
if (instance_dict.ptr() != none.ptr()) {
len_instance_dict = len(instance_dict);
}
if (!getstate.is_none()) {
if (getstate.ptr() != none.ptr()) {
if (len_instance_dict > 0) {
object getstate_manages_dict = getattr(
instance_obj, "__getstate_manages_dict__", none);
if (getstate_manages_dict.is_none()) {
if (getstate_manages_dict.ptr() == none.ptr()) {
PyErr_SetString(PyExc_RuntimeError,
"Incomplete pickle support"
" (__getstate_manages_dict__ not set)");

View File

@@ -38,13 +38,7 @@ BOOST_PYTHON_DECL object operator op(object const& l, object const& r) \
BOOST_PYTHON_BINARY_OPERATOR(+, Add)
BOOST_PYTHON_BINARY_OPERATOR(-, Subtract)
BOOST_PYTHON_BINARY_OPERATOR(*, Multiply)
#if PY_VERSION_HEX >= 0x03000000
// We choose FloorDivide instead of TrueDivide to keep the semantic
// conform with C/C++'s '/' operator
BOOST_PYTHON_BINARY_OPERATOR(/, FloorDivide)
#else
BOOST_PYTHON_BINARY_OPERATOR(/, Divide)
#endif
BOOST_PYTHON_BINARY_OPERATOR(%, Remainder)
BOOST_PYTHON_BINARY_OPERATOR(<<, Lshift)
BOOST_PYTHON_BINARY_OPERATOR(>>, Rshift)
@@ -64,12 +58,7 @@ BOOST_PYTHON_DECL object& operator op##=(object& l, object const& r) \
BOOST_PYTHON_INPLACE_OPERATOR(+, Add)
BOOST_PYTHON_INPLACE_OPERATOR(-, Subtract)
BOOST_PYTHON_INPLACE_OPERATOR(*, Multiply)
#if PY_VERSION_HEX >= 0x03000000
// Same reason as above for choosing FloorDivide instead of TrueDivide
BOOST_PYTHON_INPLACE_OPERATOR(/, FloorDivide)
#else
BOOST_PYTHON_INPLACE_OPERATOR(/, Divide)
#endif
BOOST_PYTHON_INPLACE_OPERATOR(%, Remainder)
BOOST_PYTHON_INPLACE_OPERATOR(<<, Lshift)
BOOST_PYTHON_INPLACE_OPERATOR(>>, Rshift)

View File

@@ -103,7 +103,6 @@ namespace // slicing code copied directly out of the Python implementation
static PyObject *
apply_slice(PyObject *u, PyObject *v, PyObject *w) /* return u[v:w] */
{
#if PY_VERSION_HEX < 0x03000000
PyTypeObject *tp = u->ob_type;
PySequenceMethods *sq = tp->tp_as_sequence;
@@ -115,9 +114,7 @@ namespace // slicing code copied directly out of the Python implementation
return NULL;
return PySequence_GetSlice(u, ilow, ihigh);
}
else
#endif
{
else {
PyObject *slice = PySlice_New(v, w, NULL);
if (slice != NULL) {
PyObject *res = PyObject_GetItem(u, slice);
@@ -133,7 +130,6 @@ namespace // slicing code copied directly out of the Python implementation
assign_slice(PyObject *u, PyObject *v, PyObject *w, PyObject *x)
/* u[v:w] = x */
{
#if PY_VERSION_HEX < 0x03000000
PyTypeObject *tp = u->ob_type;
PySequenceMethods *sq = tp->tp_as_sequence;
@@ -148,9 +144,7 @@ namespace // slicing code copied directly out of the Python implementation
else
return PySequence_SetSlice(u, ilow, ihigh, x);
}
else
#endif
{
else {
PyObject *slice = PySlice_New(v, w, NULL);
if (slice != NULL) {
int res;

View File

@@ -10,40 +10,23 @@ namespace boost { namespace python { namespace detail {
detail::new_reference str_base::call(object const& arg_)
{
return (detail::new_reference)PyObject_CallFunction(
#if PY_VERSION_HEX >= 0x03000000
(PyObject*)&PyUnicode_Type,
#else
(PyObject*)&PyString_Type,
#endif
const_cast<char*>("(O)"),
(PyObject*)&PyString_Type, const_cast<char*>("(O)"),
arg_.ptr());
}
str_base::str_base()
: object(detail::new_reference(
#if PY_VERSION_HEX >= 0x03000000
::PyUnicode_FromString("")
#else
::PyString_FromString("")
#endif
))
: object(detail::new_reference(::PyString_FromString("")))
{}
str_base::str_base(const char* s)
: object(detail::new_reference(
#if PY_VERSION_HEX >= 0x03000000
::PyUnicode_FromString(s)
#else
::PyString_FromString(s)
#endif
))
: object(detail::new_reference(::PyString_FromString(s)))
{}
namespace {
ssize_t str_size_as_py_ssize_t(std::size_t n)
{
if (n > static_cast<std::size_t>(ssize_t_max))
if (n > ssize_t_max)
{
throw std::range_error("str size > ssize_t_max");
}
@@ -55,12 +38,9 @@ namespace {
str_base::str_base(char const* start, char const* finish)
: object(
detail::new_reference(
#if PY_VERSION_HEX >= 0x03000000
::PyUnicode_FromStringAndSize
#else
::PyString_FromStringAndSize
#endif
(start, str_size_as_py_ssize_t(finish - start))
::PyString_FromStringAndSize(
start, str_size_as_py_ssize_t(finish - start)
)
)
)
{}
@@ -68,12 +48,9 @@ str_base::str_base(char const* start, char const* finish)
str_base::str_base(char const* start, std::size_t length) // new str
: object(
detail::new_reference(
#if PY_VERSION_HEX >= 0x03000000
::PyUnicode_FromStringAndSize
#else
::PyString_FromStringAndSize
#endif
( start, str_size_as_py_ssize_t(length) )
::PyString_FromStringAndSize(
start, str_size_as_py_ssize_t(length)
)
)
)
{}
@@ -115,7 +92,6 @@ long str_base::count(object_cref sub, object_cref start, object_cref end) const
return extract<long>(this->attr("count")(sub,start,end));
}
#if PY_VERSION_HEX < 0x03000000
object str_base::decode() const
{
return this->attr("decode")();
@@ -130,7 +106,6 @@ object str_base::decode(object_cref encoding, object_cref errors) const
{
return this->attr("decode")(encoding,errors);
}
#endif
object str_base::encode() const
{
@@ -147,16 +122,9 @@ object str_base::encode(object_cref encoding, object_cref errors) const
return this->attr("encode")(encoding,errors);
}
#if PY_VERSION_HEX >= 0x03000000
#define _BOOST_PYTHON_ASLONG PyLong_AsLong
#else
#define _BOOST_PYTHON_ASLONG PyInt_AsLong
#endif
bool str_base::endswith(object_cref suffix) const
{
bool result = _BOOST_PYTHON_ASLONG(this->attr("endswith")(suffix).ptr());
bool result = PyInt_AsLong(this->attr("endswith")(suffix).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -167,7 +135,7 @@ BOOST_PYTHON_DEFINE_STR_METHOD(expandtabs, 1)
long str_base::find(object_cref sub) const
{
long result = _BOOST_PYTHON_ASLONG(this->attr("find")(sub).ptr());
long result = PyInt_AsLong(this->attr("find")(sub).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -175,7 +143,7 @@ long str_base::find(object_cref sub) const
long str_base::find(object_cref sub, object_cref start) const
{
long result = _BOOST_PYTHON_ASLONG(this->attr("find")(sub,start).ptr());
long result = PyInt_AsLong(this->attr("find")(sub,start).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -183,7 +151,7 @@ long str_base::find(object_cref sub, object_cref start) const
long str_base::find(object_cref sub, object_cref start, object_cref end) const
{
long result = _BOOST_PYTHON_ASLONG(this->attr("find")(sub,start,end).ptr());
long result = PyInt_AsLong(this->attr("find")(sub,start,end).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -191,7 +159,7 @@ long str_base::find(object_cref sub, object_cref start, object_cref end) const
long str_base::index(object_cref sub) const
{
long result = _BOOST_PYTHON_ASLONG(this->attr("index")(sub).ptr());
long result = PyInt_AsLong(this->attr("index")(sub).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -199,7 +167,7 @@ long str_base::index(object_cref sub) const
long str_base::index(object_cref sub, object_cref start) const
{
long result = _BOOST_PYTHON_ASLONG(this->attr("index")(sub,start).ptr());
long result = PyInt_AsLong(this->attr("index")(sub,start).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -207,7 +175,7 @@ long str_base::index(object_cref sub, object_cref start) const
long str_base::index(object_cref sub, object_cref start, object_cref end) const
{
long result = _BOOST_PYTHON_ASLONG(this->attr("index")(sub,start,end).ptr());
long result = PyInt_AsLong(this->attr("index")(sub,start,end).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -215,7 +183,7 @@ long str_base::index(object_cref sub, object_cref start, object_cref end) const
bool str_base::isalnum() const
{
bool result = _BOOST_PYTHON_ASLONG(this->attr("isalnum")().ptr());
bool result = PyInt_AsLong(this->attr("isalnum")().ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -223,7 +191,7 @@ bool str_base::isalnum() const
bool str_base::isalpha() const
{
bool result = _BOOST_PYTHON_ASLONG(this->attr("isalpha")().ptr());
bool result = PyInt_AsLong(this->attr("isalpha")().ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -231,7 +199,7 @@ bool str_base::isalpha() const
bool str_base::isdigit() const
{
bool result = _BOOST_PYTHON_ASLONG(this->attr("isdigit")().ptr());
bool result = PyInt_AsLong(this->attr("isdigit")().ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -239,7 +207,7 @@ bool str_base::isdigit() const
bool str_base::islower() const
{
bool result = _BOOST_PYTHON_ASLONG(this->attr("islower")().ptr());
bool result = PyInt_AsLong(this->attr("islower")().ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -247,7 +215,7 @@ bool str_base::islower() const
bool str_base::isspace() const
{
bool result = _BOOST_PYTHON_ASLONG(this->attr("isspace")().ptr());
bool result = PyInt_AsLong(this->attr("isspace")().ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -255,7 +223,7 @@ bool str_base::isspace() const
bool str_base::istitle() const
{
bool result = _BOOST_PYTHON_ASLONG(this->attr("istitle")().ptr());
bool result = PyInt_AsLong(this->attr("istitle")().ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -263,7 +231,7 @@ bool str_base::istitle() const
bool str_base::isupper() const
{
bool result = _BOOST_PYTHON_ASLONG(this->attr("isupper")().ptr());
bool result = PyInt_AsLong(this->attr("isupper")().ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -278,7 +246,7 @@ BOOST_PYTHON_DEFINE_STR_METHOD(replace, 3)
long str_base::rfind(object_cref sub) const
{
long result = _BOOST_PYTHON_ASLONG(this->attr("rfind")(sub).ptr());
long result = PyInt_AsLong(this->attr("rfind")(sub).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -286,7 +254,7 @@ long str_base::rfind(object_cref sub) const
long str_base::rfind(object_cref sub, object_cref start) const
{
long result = _BOOST_PYTHON_ASLONG(this->attr("rfind")(sub,start).ptr());
long result = PyInt_AsLong(this->attr("rfind")(sub,start).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -294,7 +262,7 @@ long str_base::rfind(object_cref sub, object_cref start) const
long str_base::rfind(object_cref sub, object_cref start, object_cref end) const
{
long result = _BOOST_PYTHON_ASLONG(this->attr("rfind")(sub,start,end).ptr());
long result = PyInt_AsLong(this->attr("rfind")(sub,start,end).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -302,7 +270,7 @@ long str_base::rfind(object_cref sub, object_cref start, object_cref end) const
long str_base::rindex(object_cref sub) const
{
long result = _BOOST_PYTHON_ASLONG(this->attr("rindex")(sub).ptr());
long result = PyInt_AsLong(this->attr("rindex")(sub).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -310,7 +278,7 @@ long str_base::rindex(object_cref sub) const
long str_base::rindex(object_cref sub, object_cref start) const
{
long result = _BOOST_PYTHON_ASLONG(this->attr("rindex")(sub,start).ptr());
long result = PyInt_AsLong(this->attr("rindex")(sub,start).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -318,7 +286,7 @@ long str_base::rindex(object_cref sub, object_cref start) const
long str_base::rindex(object_cref sub, object_cref start, object_cref end) const
{
long result = _BOOST_PYTHON_ASLONG(this->attr("rindex")(sub,start,end).ptr());
long result = PyInt_AsLong(this->attr("rindex")(sub,start,end).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -354,7 +322,7 @@ list str_base::splitlines(object_cref keepends) const
bool str_base::startswith(object_cref prefix) const
{
bool result = _BOOST_PYTHON_ASLONG(this->attr("startswith")(prefix).ptr());
bool result = PyInt_AsLong(this->attr("startswith")(prefix).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -362,7 +330,7 @@ bool str_base::startswith(object_cref prefix) const
bool str_base::startswith(object_cref prefix, object_cref start) const
{
bool result = _BOOST_PYTHON_ASLONG(this->attr("startswith")(prefix,start).ptr());
bool result = PyInt_AsLong(this->attr("startswith")(prefix,start).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
@@ -370,14 +338,12 @@ bool str_base::startswith(object_cref prefix, object_cref start) const
bool str_base::startswith(object_cref prefix, object_cref start, object_cref end) const
{
bool result = _BOOST_PYTHON_ASLONG(this->attr("startswith")(prefix,start,end).ptr());
bool result = PyInt_AsLong(this->attr("startswith")(prefix,start,end).ptr());
if (PyErr_Occurred())
throw_error_already_set();
return result;
}
#undef _BOOST_PYTHON_ASLONG
BOOST_PYTHON_DEFINE_STR_METHOD(strip, 0)
BOOST_PYTHON_DEFINE_STR_METHOD(swapcase, 0)
BOOST_PYTHON_DEFINE_STR_METHOD(title, 0)
@@ -391,12 +357,7 @@ static struct register_str_pytype_ptr
{
const_cast<converter::registration &>(
converter::registry::lookup(boost::python::type_id<boost::python::str>())
)
#if PY_VERSION_HEX >= 0x03000000
.m_class_object = &PyUnicode_Type;
#else
.m_class_object = &PyString_Type;
#endif
).m_class_object = &PyString_Type;
}
}register_str_pytype_ptr_;

View File

@@ -37,13 +37,6 @@ rule py-compile-fail ( sources * )
return [ compile-fail $(sources) /boost/python//boost_python ] ;
}
rule require-windows ( properties * )
{
if ! <target-os>windows in $(properties)
{
return <build>no ;
}
}
test-suite python
:
@@ -82,17 +75,13 @@ bpl-test crossmod_exception
[ bpl-test return_arg ]
[ bpl-test staticmethod ]
[ bpl-test shared_ptr ]
[ bpl-test enable_shared_from_this ]
[ bpl-test andreas_beyer ]
[ bpl-test wrapper_held_type ]
[ bpl-test polymorphism2_auto_ptr
: polymorphism2_auto_ptr.py polymorphism2.py polymorphism2_auto_ptr.cpp
]
[ bpl-test polymorphism ]
[ bpl-test polymorphism2 ]
[ bpl-test wrapper_held_type ]
[ bpl-test polymorphism2_auto_ptr ]
[ bpl-test auto_ptr ]
[ bpl-test minimal ]
@@ -191,9 +180,6 @@ bpl-test crossmod_opaque
# bpl-test bienstman5 ;
# }
[ bpl-test calling_conventions : : <conditional>@require-windows ]
[ bpl-test calling_conventions_mf : : <conditional>@require-windows ]
# --- unit tests of library components ---
[ compile indirect_traits_test.cpp ]

View File

@@ -48,11 +48,7 @@ struct AFromPython
static void* convertible(PyObject* obj_ptr)
{
#if PY_VERSION_HEX >= 0x03000000
if (!PyLong_Check(obj_ptr)) return 0;
#else
if (!PyInt_Check(obj_ptr)) return 0;
#endif
return obj_ptr;
}
@@ -64,11 +60,7 @@ struct AFromPython
(boost::python::converter::rvalue_from_python_storage< A >*)
data)-> storage.bytes;
#if PY_VERSION_HEX >= 0x03000000
new (storage) A((int)PyLong_AsLong(obj_ptr));
#else
new (storage) A((int)PyInt_AsLong(obj_ptr));
#endif
data->convertible = storage;
}
};

View File

@@ -1,158 +0,0 @@
//
// adapted from bind_stdcall_test.cpp - test for bind.hpp + __stdcall (free functions)
// The purpose of this simple test is to determine if a function can be
// called from Python with the various existing calling conventions
//
// Copyright (c) 2001 Peter Dimov and Multi Media Ltd.
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
#if !defined(TEST_INCLUDE_RECURSION)
#define TEST_INCLUDE_RECURSION
//------------------------------------------------------------------------------
// this section is the main body of the test extension module
#define BOOST_PYTHON_ENABLE_CDECL
#define BOOST_PYTHON_ENABLE_STDCALL
#define BOOST_PYTHON_ENABLE_FASTCALL
#include <boost/preprocessor/cat.hpp>
#include <boost/preprocessor/stringize.hpp>
#include <boost/python.hpp>
using namespace boost::python;
// first define test functions for every calling convention
#define TEST_DECLARE_FUNCTIONS
#define TESTED_CALLING_CONVENTION __cdecl
#include "calling_conventions.cpp"
#undef TESTED_CALLING_CONVENTION
#define TESTED_CALLING_CONVENTION __stdcall
#include "calling_conventions.cpp"
#undef TESTED_CALLING_CONVENTION
#define TESTED_CALLING_CONVENTION __fastcall
#include "calling_conventions.cpp"
#undef TESTED_CALLING_CONVENTION
#undef TEST_DECLARE_FUNCTIONS
// then create a module wrapping the defined functions for every calling convention
BOOST_PYTHON_MODULE( calling_conventions_ext )
{
#define TEST_WRAP_FUNCTIONS
#define TESTED_CALLING_CONVENTION __cdecl
#include "calling_conventions.cpp"
#undef TESTED_CALLING_CONVENTION
#define TESTED_CALLING_CONVENTION __stdcall
#include "calling_conventions.cpp"
#undef TESTED_CALLING_CONVENTION
#define TESTED_CALLING_CONVENTION __fastcall
#include "calling_conventions.cpp"
#undef TESTED_CALLING_CONVENTION
#undef TEST_WRAP_FUNCTIONS
}
#else // !defined(TEST_INCLUDE_RECURSION)
//------------------------------------------------------------------------------
// this section defines the functions to be wrapped
# if defined(TEST_DECLARE_FUNCTIONS)
# if !defined(TESTED_CALLING_CONVENTION)
# error "One calling convention must be defined"
# endif // !defined(TESTED_CALLING_CONVENTION)
namespace BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION) {
long TESTED_CALLING_CONVENTION f_0()
{
return 17041L;
}
long TESTED_CALLING_CONVENTION f_1(long a)
{
return a;
}
long TESTED_CALLING_CONVENTION f_2(long a, long b)
{
return a + 10 * b;
}
long TESTED_CALLING_CONVENTION f_3(long a, long b, long c)
{
return a + 10 * b + 100 * c;
}
long TESTED_CALLING_CONVENTION f_4(long a, long b, long c, long d)
{
return a + 10 * b + 100 * c + 1000 * d;
}
long TESTED_CALLING_CONVENTION f_5(long a, long b, long c, long d, long e)
{
return a + 10 * b + 100 * c + 1000 * d + 10000 * e;
}
long TESTED_CALLING_CONVENTION f_6(long a, long b, long c, long d, long e, long f)
{
return a + 10 * b + 100 * c + 1000 * d + 10000 * e + 100000 * f;
}
long TESTED_CALLING_CONVENTION f_7(long a, long b, long c, long d, long e, long f, long g)
{
return a + 10 * b + 100 * c + 1000 * d + 10000 * e + 100000 * f + 1000000 * g;
}
long TESTED_CALLING_CONVENTION f_8(long a, long b, long c, long d, long e, long f, long g, long h)
{
return a + 10 * b + 100 * c + 1000 * d + 10000 * e + 100000 * f + 1000000 * g + 10000000 * h;
}
long TESTED_CALLING_CONVENTION f_9(long a, long b, long c, long d, long e, long f, long g, long h, long i)
{
return a + 10 * b + 100 * c + 1000 * d + 10000 * e + 100000 * f + 1000000 * g + 10000000 * h + 100000000 * i;
}
} // namespace test##TESTED_CALLING_CONVENTION
# endif // defined(TEST_DECLARE_FUNCTIONS)
//------------------------------------------------------------------------------
// this section wraps the functions
# if defined(TEST_WRAP_FUNCTIONS)
# if !defined(TESTED_CALLING_CONVENTION)
# error "One calling convention must be defined"
# endif // !defined(TESTED_CALLING_CONVENTION)
def("f_0" BOOST_PP_STRINGIZE(TESTED_CALLING_CONVENTION), &BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION)::f_0);
def("f_1" BOOST_PP_STRINGIZE(TESTED_CALLING_CONVENTION), &BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION)::f_1);
def("f_2" BOOST_PP_STRINGIZE(TESTED_CALLING_CONVENTION), &BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION)::f_2);
def("f_3" BOOST_PP_STRINGIZE(TESTED_CALLING_CONVENTION), &BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION)::f_3);
def("f_4" BOOST_PP_STRINGIZE(TESTED_CALLING_CONVENTION), &BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION)::f_4);
def("f_5" BOOST_PP_STRINGIZE(TESTED_CALLING_CONVENTION), &BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION)::f_5);
def("f_6" BOOST_PP_STRINGIZE(TESTED_CALLING_CONVENTION), &BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION)::f_6);
def("f_7" BOOST_PP_STRINGIZE(TESTED_CALLING_CONVENTION), &BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION)::f_7);
def("f_8" BOOST_PP_STRINGIZE(TESTED_CALLING_CONVENTION), &BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION)::f_8);
def("f_9" BOOST_PP_STRINGIZE(TESTED_CALLING_CONVENTION), &BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION)::f_9);
# endif // defined(TEST_WRAP_FUNCTIONS)
#endif // !defined(TEST_INCLUDE_RECURSION)

View File

@@ -1,81 +0,0 @@
# Copyright Nicolas Lelong, 2010. Distributed under the Boost
# Software License, Version 1.0 (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
"""
>>> from calling_conventions_ext import *
>>> f_0__cdecl()
17041
>>> f_1__cdecl(1)
1
>>> f_2__cdecl(1, 2)
21
>>> f_3__cdecl(1, 2, 3)
321
>>> f_4__cdecl(1, 2, 3, 4)
4321
>>> f_5__cdecl(1, 2, 3, 4, 5)
54321
>>> f_6__cdecl(1, 2, 3, 4, 5, 6)
654321
>>> f_7__cdecl(1, 2, 3, 4, 5, 6, 7)
7654321
>>> f_8__cdecl(1, 2, 3, 4, 5, 6, 7, 8)
87654321
>>> f_9__cdecl(1, 2, 3, 4, 5, 6, 7, 8, 9)
987654321
>>> f_0__stdcall()
17041
>>> f_1__stdcall(1)
1
>>> f_2__stdcall(1, 2)
21
>>> f_3__stdcall(1, 2, 3)
321
>>> f_4__stdcall(1, 2, 3, 4)
4321
>>> f_5__stdcall(1, 2, 3, 4, 5)
54321
>>> f_6__stdcall(1, 2, 3, 4, 5, 6)
654321
>>> f_7__stdcall(1, 2, 3, 4, 5, 6, 7)
7654321
>>> f_8__stdcall(1, 2, 3, 4, 5, 6, 7, 8)
87654321
>>> f_9__stdcall(1, 2, 3, 4, 5, 6, 7, 8, 9)
987654321
>>> f_0__fastcall()
17041
>>> f_1__fastcall(1)
1
>>> f_2__fastcall(1, 2)
21
>>> f_3__fastcall(1, 2, 3)
321
>>> f_4__fastcall(1, 2, 3, 4)
4321
>>> f_5__fastcall(1, 2, 3, 4, 5)
54321
>>> f_6__fastcall(1, 2, 3, 4, 5, 6)
654321
>>> f_7__fastcall(1, 2, 3, 4, 5, 6, 7)
7654321
>>> f_8__fastcall(1, 2, 3, 4, 5, 6, 7, 8)
87654321
>>> f_9__fastcall(1, 2, 3, 4, 5, 6, 7, 8, 9)
987654321
"""
def run(args = None):
import sys
import doctest
if args is not None:
sys.argv = args
return doctest.testmod(sys.modules.get(__name__))
if __name__ == '__main__':
print "running..."
import sys
status = run()[0]
if (status == 0): print "Done."
sys.exit(status)

View File

@@ -1,159 +0,0 @@
//
// adapted from bind_stdcall_mf_test.cpp - test for bind.hpp + __stdcall (free functions)
// The purpose of this simple test is to determine if a function can be
// called from Python with the various existing calling conventions
//
// Copyright (c) 2001 Peter Dimov and Multi Media Ltd.
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
#if !defined(TEST_INCLUDE_RECURSION)
#define TEST_INCLUDE_RECURSION
//------------------------------------------------------------------------------
// this section is the main body of the test extension module
#define BOOST_PYTHON_ENABLE_CDECL
#define BOOST_PYTHON_ENABLE_STDCALL
#define BOOST_PYTHON_ENABLE_FASTCALL
#include <boost/preprocessor/cat.hpp>
#include <boost/preprocessor/stringize.hpp>
#include <boost/python.hpp>
using namespace boost::python;
// first define test functions for every calling convention
#define TEST_DECLARE_FUNCTIONS
#define TESTED_CALLING_CONVENTION __cdecl
#include "calling_conventions_mf.cpp"
#undef TESTED_CALLING_CONVENTION
#define TESTED_CALLING_CONVENTION __stdcall
#include "calling_conventions_mf.cpp"
#undef TESTED_CALLING_CONVENTION
#define TESTED_CALLING_CONVENTION __fastcall
#include "calling_conventions_mf.cpp"
#undef TESTED_CALLING_CONVENTION
#undef TEST_DECLARE_FUNCTIONS
// then create a module wrapping the defined functions for every calling convention
BOOST_PYTHON_MODULE( calling_conventions_mf_ext )
{
#define TEST_WRAP_FUNCTIONS
#define TESTED_CALLING_CONVENTION __cdecl
#include "calling_conventions_mf.cpp"
#undef TESTED_CALLING_CONVENTION
#define TESTED_CALLING_CONVENTION __stdcall
#include "calling_conventions_mf.cpp"
#undef TESTED_CALLING_CONVENTION
#define TESTED_CALLING_CONVENTION __fastcall
#include "calling_conventions_mf.cpp"
#undef TESTED_CALLING_CONVENTION
#undef TEST_WRAP_FUNCTIONS
}
#else // !defined(TEST_INCLUDE_RECURSION)
//------------------------------------------------------------------------------
// this section defines the functions to be wrapped
# if defined(TEST_DECLARE_FUNCTIONS)
# if !defined(TESTED_CALLING_CONVENTION)
# error "One calling convention must be defined"
# endif // !defined(TESTED_CALLING_CONVENTION)
namespace BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION) {
struct X
{
mutable unsigned int hash;
X(): hash(0) {}
void TESTED_CALLING_CONVENTION f0() { f1(17); }
void TESTED_CALLING_CONVENTION g0() const { g1(17); }
void TESTED_CALLING_CONVENTION f1(int a1) { hash = (hash * 17041 + a1) % 32768; }
void TESTED_CALLING_CONVENTION g1(int a1) const { hash = (hash * 17041 + a1 * 2) % 32768; }
void TESTED_CALLING_CONVENTION f2(int a1, int a2) { f1(a1); f1(a2); }
void TESTED_CALLING_CONVENTION g2(int a1, int a2) const { g1(a1); g1(a2); }
void TESTED_CALLING_CONVENTION f3(int a1, int a2, int a3) { f2(a1, a2); f1(a3); }
void TESTED_CALLING_CONVENTION g3(int a1, int a2, int a3) const { g2(a1, a2); g1(a3); }
void TESTED_CALLING_CONVENTION f4(int a1, int a2, int a3, int a4) { f3(a1, a2, a3); f1(a4); }
void TESTED_CALLING_CONVENTION g4(int a1, int a2, int a3, int a4) const { g3(a1, a2, a3); g1(a4); }
void TESTED_CALLING_CONVENTION f5(int a1, int a2, int a3, int a4, int a5) { f4(a1, a2, a3, a4); f1(a5); }
void TESTED_CALLING_CONVENTION g5(int a1, int a2, int a3, int a4, int a5) const { g4(a1, a2, a3, a4); g1(a5); }
void TESTED_CALLING_CONVENTION f6(int a1, int a2, int a3, int a4, int a5, int a6) { f5(a1, a2, a3, a4, a5); f1(a6); }
void TESTED_CALLING_CONVENTION g6(int a1, int a2, int a3, int a4, int a5, int a6) const { g5(a1, a2, a3, a4, a5); g1(a6); }
void TESTED_CALLING_CONVENTION f7(int a1, int a2, int a3, int a4, int a5, int a6, int a7) { f6(a1, a2, a3, a4, a5, a6); f1(a7); }
void TESTED_CALLING_CONVENTION g7(int a1, int a2, int a3, int a4, int a5, int a6, int a7) const { g6(a1, a2, a3, a4, a5, a6); g1(a7); }
void TESTED_CALLING_CONVENTION f8(int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8) { f7(a1, a2, a3, a4, a5, a6, a7); f1(a8); }
void TESTED_CALLING_CONVENTION g8(int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8) const { g7(a1, a2, a3, a4, a5, a6, a7); g1(a8); }
};
} // namespace BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION)
# endif // defined(TEST_DECLARE_FUNCTIONS)
//------------------------------------------------------------------------------
// this section wraps the functions
# if defined(TEST_WRAP_FUNCTIONS)
# if !defined(TESTED_CALLING_CONVENTION)
# error "One calling convention must be defined"
# endif // !defined(TESTED_CALLING_CONVENTION)
{
typedef BOOST_PP_CAT(test, TESTED_CALLING_CONVENTION)::X X;
class_<X>("X" BOOST_PP_STRINGIZE(TESTED_CALLING_CONVENTION))
.def("f0", &X::f0)
.def("g0", &X::g0)
.def("f1", &X::f1)
.def("g1", &X::g1)
.def("f2", &X::f2)
.def("g2", &X::g2)
.def("f3", &X::f3)
.def("g3", &X::g3)
.def("f4", &X::f4)
.def("g4", &X::g4)
.def("f5", &X::f5)
.def("g5", &X::g5)
.def("f6", &X::f6)
.def("g6", &X::g6)
.def("f7", &X::f7)
.def("g7", &X::g7)
.def("f8", &X::f8)
.def("g8", &X::g8)
.def_readonly("hash", &X::hash)
;
}
# endif // defined(TEST_WRAP_FUNCTIONS)
#endif // !defined(TEST_INCLUDE_RECURSION)

View File

@@ -1,84 +0,0 @@
# Copyright Nicolas Lelong, 2010. Distributed under the Boost
# Software License, Version 1.0 (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
"""
>>> from calling_conventions_mf_ext import *
>>> x = X__cdecl()
>>> x.f0()
>>> x.g0()
>>> x.f1(1)
>>> x.g1(1)
>>> x.f2(1, 2)
>>> x.g2(1, 2)
>>> x.f3(1, 2, 3)
>>> x.g3(1, 2, 3)
>>> x.f4(1, 2, 3, 4)
>>> x.g4(1, 2, 3, 4)
>>> x.f5(1, 2, 3, 4, 5)
>>> x.g5(1, 2, 3, 4, 5)
>>> x.f6(1, 2, 3, 4, 5, 6)
>>> x.g6(1, 2, 3, 4, 5, 6)
>>> x.f7(1, 2, 3, 4, 5, 6, 7)
>>> x.g7(1, 2, 3, 4, 5, 6, 7)
>>> x.f8(1, 2, 3, 4, 5, 6, 7, 8)
>>> x.g8(1, 2, 3, 4, 5, 6, 7, 8)
>>> x.hash
2155
>>> x = X__stdcall()
>>> x.f0()
>>> x.g0()
>>> x.f1(1)
>>> x.g1(1)
>>> x.f2(1, 2)
>>> x.g2(1, 2)
>>> x.f3(1, 2, 3)
>>> x.g3(1, 2, 3)
>>> x.f4(1, 2, 3, 4)
>>> x.g4(1, 2, 3, 4)
>>> x.f5(1, 2, 3, 4, 5)
>>> x.g5(1, 2, 3, 4, 5)
>>> x.f6(1, 2, 3, 4, 5, 6)
>>> x.g6(1, 2, 3, 4, 5, 6)
>>> x.f7(1, 2, 3, 4, 5, 6, 7)
>>> x.g7(1, 2, 3, 4, 5, 6, 7)
>>> x.f8(1, 2, 3, 4, 5, 6, 7, 8)
>>> x.g8(1, 2, 3, 4, 5, 6, 7, 8)
>>> x.hash
2155
>>> x = X__fastcall()
>>> x.f0()
>>> x.g0()
>>> x.f1(1)
>>> x.g1(1)
>>> x.f2(1, 2)
>>> x.g2(1, 2)
>>> x.f3(1, 2, 3)
>>> x.g3(1, 2, 3)
>>> x.f4(1, 2, 3, 4)
>>> x.g4(1, 2, 3, 4)
>>> x.f5(1, 2, 3, 4, 5)
>>> x.g5(1, 2, 3, 4, 5)
>>> x.f6(1, 2, 3, 4, 5, 6)
>>> x.g6(1, 2, 3, 4, 5, 6)
>>> x.f7(1, 2, 3, 4, 5, 6, 7)
>>> x.g7(1, 2, 3, 4, 5, 6, 7)
>>> x.f8(1, 2, 3, 4, 5, 6, 7, 8)
>>> x.g8(1, 2, 3, 4, 5, 6, 7, 8)
>>> x.hash
2155
"""
def run(args = None):
import sys
import doctest
if args is not None:
sys.argv = args
return doctest.testmod(sys.modules.get(__name__))
if __name__ == '__main__':
print "running..."
import sys
status = run()[0]
if (status == 0): print "Done."
sys.exit(status)

View File

@@ -1,4 +1,4 @@
# -*- coding: latin-1 -*-
# -*- coding: iso-latin-1 -*-
# Copyright Gottfried Ganßauge 2006.
# Distributed under the Boost Software License, Version 1.0. (See
# accompanying file LICENSE_1_0.txt or copy at

View File

@@ -2,6 +2,13 @@
# Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
"""
# Use builtin True/False when available:
>>> try:
... assert(True == 1)
... except:
... True = 1
... False = 0
>>> from defaults_ext import *
>>> bar(1)
'int(1); char(D); string(default); double(0.0); '

View File

@@ -22,10 +22,6 @@ struct foo
*kills++ = n;
}
int n;
// This used to cause compiler errors with MSVC 9.0.
foo& operator~();
foo& T();
};
void assert_destructions(int n)

View File

@@ -20,7 +20,7 @@
[(1, {'key2': 'value2'}), ('key1', 'value1')]
>>> print dict_from_sequence([(1,1),(2,2),(3,3)])
{1: 1, 2: 2, 3: 3}
>>> test_templates(printer) #doctest: +NORMALIZE_WHITESPACE
>>> test_templates(printer)
a test string
13
None

View File

@@ -1,48 +0,0 @@
// Copyright David Abrahams 2002.
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#include <boost/python/module.hpp>
#include <boost/python/class.hpp>
#include <boost/python/call_method.hpp>
#include <boost/python/extract.hpp>
#include <boost/python/def.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <boost/shared_ptr.hpp>
#include "test_class.hpp"
#include <memory>
using namespace boost::python;
using boost::shared_ptr;
class Test;
typedef shared_ptr<Test> TestPtr;
class Test : public boost::enable_shared_from_this<Test> {
public:
static TestPtr construct() {
return TestPtr(new Test);
}
void act() {
TestPtr kungFuDeathGrip(shared_from_this());
}
void take(TestPtr t) {
}
};
BOOST_PYTHON_MODULE(enable_shared_from_this_ext)
{
class_<Test, TestPtr, boost::noncopyable>("Test")
.def("construct", &Test::construct).staticmethod("construct")
.def("act", &Test::act)
.def("take", &Test::take)
;
}
#include "module_tail.cpp"

View File

@@ -1,26 +0,0 @@
# Copyright David Abrahams 2004. Distributed under the Boost
# Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
'''
>>> from enable_shared_from_this_ext import *
>>> x = Test.construct()
>>> x.take(x)
>>> x.act()
'''
def run(args = None):
import sys
import doctest
if args is not None:
sys.argv = args
return doctest.testmod(sys.modules.get(__name__))
if __name__ == '__main__':
print "running..."
import sys
status = run()[0]
if (status == 0): print "Done."
sys.exit(status)

View File

@@ -12,7 +12,7 @@
#endif
using namespace boost::python;
enum color { red = 1, green = 2, blue = 4, blood = 1 };
enum color { red = 1, green = 2, blue = 4 };
#if BOOST_WORKAROUND(__MWERKS__, <= 0x2407)
namespace boost // Pro7 has a hard time detecting enums
@@ -34,7 +34,6 @@ BOOST_PYTHON_MODULE(enum_ext)
.value("red", red)
.value("green", green)
.value("blue", blue)
.value("blood", blood)
.export_values()
;

View File

@@ -4,8 +4,8 @@
'''
>>> from enum_ext import *
>>> identity(color.red) # in case of duplicated enums it always take the last enum
enum_ext.color.blood
>>> identity(color.red)
enum_ext.color.red
>>> identity(color.green)
enum_ext.color.green
@@ -13,8 +13,8 @@ enum_ext.color.green
>>> identity(color.blue)
enum_ext.color.blue
>>> identity(color(1)) # in case of duplicated enums it always take the last enum
enum_ext.color.blood
>>> identity(color(1))
enum_ext.color.red
>>> identity(color(2))
enum_ext.color.green
@@ -28,7 +28,7 @@ enum_ext.color.blue
--- check export to scope ---
>>> identity(red)
enum_ext.color.blood
enum_ext.color.red
>>> identity(green)
enum_ext.color.green
@@ -42,18 +42,10 @@ enum_ext.color.blue
>>> c = colorized()
>>> c.x
enum_ext.color.blood
enum_ext.color.red
>>> c.x = green
>>> c.x
enum_ext.color.green
>>> red == blood
True
>>> red == green
False
>>> hash(red) == hash(blood)
True
>>> hash(red) == hash(green)
False
'''
# pickling of enums only works with Python 2.3 or higher

View File

@@ -59,13 +59,7 @@ void eval_test()
void exec_test()
{
// Register the module with the interpreter
if (PyImport_AppendInittab(const_cast<char*>("embedded_hello"),
#if PY_VERSION_HEX >= 0x03000000
PyInit_embedded_hello
#else
initembedded_hello
#endif
) == -1)
if (PyImport_AppendInittab(const_cast<char*>("embedded_hello"), initembedded_hello) == -1)
throw std::runtime_error("Failed to add embedded_hello to the interpreter's "
"builtin modules");
// Retrieve the main module
@@ -111,76 +105,49 @@ void exec_test_error()
{
// Execute a statement that raises a python exception.
python::dict global;
python::object result = python::exec("print(unknown) \n", global, global);
}
void exercise_embedding_html()
{
using namespace boost::python;
/* code from: libs/python/doc/tutorial/doc/tutorial.qbk
(generates libs/python/doc/tutorial/doc/html/python/embedding.html)
*/
object main_module = import("__main__");
object main_namespace = main_module.attr("__dict__");
object ignored = exec("hello = file('hello.txt', 'w')\n"
"hello.write('Hello world!')\n"
"hello.close()",
main_namespace);
}
void check_pyerr(bool pyerr_expected=false)
{
if (PyErr_Occurred())
{
if (!pyerr_expected) {
BOOST_ERROR("Python Error detected");
PyErr_Print();
}
else {
PyErr_Clear();
}
}
else
{
BOOST_ERROR("A C++ exception was thrown for which "
"there was no exception handler registered.");
}
python::object result = python::exec("print unknown \n", global, global);
}
int main(int argc, char **argv)
{
BOOST_TEST(argc == 2 || argc == 3);
BOOST_TEST(argc == 2);
std::string script = argv[1];
// Initialize the interpreter
Py_Initialize();
if (python::handle_exception(eval_test)) {
check_pyerr();
}
else if(python::handle_exception(exec_test)) {
check_pyerr();
}
else if (python::handle_exception(boost::bind(exec_file_test, script))) {
check_pyerr();
if (python::handle_exception(eval_test) ||
python::handle_exception(exec_test) ||
python::handle_exception(boost::bind(exec_file_test, script)))
{
if (PyErr_Occurred())
{
BOOST_ERROR("Python Error detected");
PyErr_Print();
}
else
{
BOOST_ERROR("A C++ exception was thrown for which "
"there was no exception handler registered.");
}
}
if (python::handle_exception(exec_test_error))
{
check_pyerr(/*pyerr_expected*/ true);
if (PyErr_Occurred())
{
PyErr_Print();
}
else
{
BOOST_ERROR("A C++ exception was thrown for which "
"there was no exception handler registered.");
}
}
else
{
BOOST_ERROR("Python exception expected, but not seen.");
BOOST_ERROR("Python exception expected, but not seen.");
}
if (argc > 2) {
// The main purpose is to test compilation. Since this test generates
// a file and I (rwgk) am uncertain about the side-effects, run it only
// if explicitly requested.
exercise_embedding_html();
}
// Boost.Python doesn't support Py_Finalize yet.
// Py_Finalize();
return boost::report_errors();

View File

@@ -2,5 +2,5 @@
# Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
if 1:
number = 42
print 'Hello World !'
number = 42

View File

@@ -53,7 +53,7 @@
>>> ll.push_back(x)
>>> x.push_back(7)
>>> ll.push_back(x)
>>> for a in ll: #doctest: +NORMALIZE_WHITESPACE
>>> for a in ll:
... for b in a:
... print b,
... print

View File

@@ -7,8 +7,6 @@
#include <boost/python/def.hpp>
#include <boost/python/class.hpp>
#include <boost/python/list.hpp>
#include <boost/python/tuple.hpp>
#include <boost/python/dict.hpp>
#include <boost/python/make_function.hpp>
#include <boost/lexical_cast.hpp>
#define BOOST_ENABLE_ASSERT_HANDLER
@@ -111,16 +109,11 @@ void exercise(list x, object y, object print)
print("sorted:");
x.pop(2); // make sorting predictable
x.pop(2); // remove [1,2] so the list is sortable in py3k
x.sort();
print(x);
print("reverse sorted:");
#if PY_VERSION_HEX >= 0x03000000
x.sort(*tuple(), **dict(make_tuple(make_tuple("reverse", true))));
#else
x.sort(&notcmp);
#endif
print(x);
list w;

View File

@@ -73,7 +73,7 @@ X(22)
...
>>> y = X(42)
>>> exercise(letters, y, printer) #doctest: +NORMALIZE_WHITESPACE
>>> exercise(letters, y, printer)
after append:
['h', 'e', 'l', 'l', 'o', '.', [1, 2], X(42), 5, X(3)]
number of X(42) instances: 1
@@ -97,9 +97,9 @@ removing 666
reversing...
['y', 'x', X(3), [1, 2], '.', 'o', 'l', 'l', 'e', 'h']
sorted:
['.', 'e', 'h', 'l', 'l', 'o', 'x', 'y']
[[1, 2], '.', 'e', 'h', 'l', 'l', 'o', 'x', 'y']
reverse sorted:
['y', 'x', 'o', 'l', 'l', 'h', 'e', '.']
['y', 'x', 'o', 'l', 'l', 'h', 'e', '.', [1, 2]]
'''
def run(args = None):

View File

@@ -3,12 +3,12 @@
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
'''
>>> from long_ext import *
>>> print new_long()
0
>>> print longify(42)
42
>>> print longify_string('300')
300
>>> new_long()
0L
>>> longify(42)
42L
>>> longify_string('300')
300L
>>> is_long(20L)
'yes'
>>> is_long('20')

View File

@@ -32,7 +32,8 @@ struct NoddyObject : PyObject
};
PyTypeObject NoddyType = {
PyVarObject_HEAD_INIT(NULL, 0)
PyObject_HEAD_INIT(NULL)
0,
const_cast<char*>("Noddy"),
sizeof(NoddyObject),
0,
@@ -103,7 +104,8 @@ struct extract_simple_object
};
PyTypeObject SimpleType = {
PyVarObject_HEAD_INIT(NULL, 0)
PyObject_HEAD_INIT(NULL)
0,
const_cast<char*>("Simple"),
sizeof(SimpleObject),
0,

View File

@@ -13,11 +13,6 @@
#include <boost/python/return_value_policy.hpp>
#include "simple_type.hpp"
#if PY_VERSION_HEX >= 0x03000000
# define PyString_FromString PyUnicode_FromString
# define PyInt_FromLong PyLong_FromLong
#endif
// Get a simple (by value) from the argument, and return the
// string it holds.
PyObject* unwrap_simple(simple x)
@@ -57,11 +52,6 @@ PyObject* unwrap_int_const_ref(int const& x)
return PyInt_FromLong(x);
}
#if PY_VERSION_HEX >= 0x03000000
# undef PyString_FromString
# undef PyInt_FromLong
#endif
// rewrap<T> extracts a T from the argument, then converts the T back
// to a PyObject* and returns it.
template <class T>

View File

@@ -62,7 +62,7 @@ BOOST_PYTHON_MODULE(map_indexing_suite_ext)
void a_map_indexing_suite(); // moved to a_map_indexing_suite.cpp to
a_map_indexing_suite(); // avoid MSVC 6/7 internal structure overflow
}
#include "module_tail.cpp"

View File

@@ -197,7 +197,7 @@ kiwi
>>> tm["kimpo"] = X("bbb")
>>> print_xmap(tm)
[ (joel, aaa) (kimpo, bbb) ]
>>> for el in tm: #doctest: +NORMALIZE_WHITESPACE
>>> for el in tm:
... print el.key(),
... dom = el.data()
joel kimpo

View File

@@ -13,7 +13,6 @@
# endif
# ifdef _MSC_VER
# include <eh.h> // for _set_se_translator()
# pragma warning(push)
# pragma warning(disable:4297)
# pragma warning(disable:4535)

View File

@@ -187,11 +187,6 @@ bool check_string_slice()
return s.slice(2,-1).slice(1,-1) == "lo, wor";
}
object test_call(object c, object args, object kwds)
{
return c(*args, **kwds);
}
bool check_binary_operators()
{
int y;
@@ -382,7 +377,6 @@ BOOST_PYTHON_MODULE(object_ext)
def("test_item", test_item);
def("test_not_item", test_not_item);
def("test_call", test_call);
def("check_binary_operators", check_binary_operators);
def("check_inplace", check_inplace);
def("check_string_slice", check_string_slice);

View File

@@ -134,12 +134,7 @@
Operators
>>> def print_args(*args, **kwds):
... print args, kwds
>>> test_call(print_args, (0, 1, 2, 3), {'a':'A'})
(0, 1, 2, 3) {'a': 'A'}
>>> assert check_binary_operators()
>>> class X: pass

View File

@@ -1,4 +1,4 @@
# -*- coding: latin-1 -*-
# -*- coding: iso-latin-1 -*-
# Copyright Gottfried Ganßauge 2003..2006. Distributed under the Boost
# Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

View File

@@ -40,7 +40,8 @@ namespace boost_python_test {
boost::python::tuple
getinitargs(const world& w)
{
return boost::python::make_tuple(w.get_country());
using namespace boost::python;
return make_tuple(w.get_country());
}
};

View File

@@ -52,14 +52,16 @@ namespace boost_python_test {
boost::python::tuple
getinitargs(const world& w)
{
return boost::python::make_tuple(w.get_country());
using namespace boost::python;
return make_tuple(w.get_country());
}
static
boost::python::tuple
getstate(const world& w)
{
return boost::python::make_tuple(w.get_secret_number());
using namespace boost::python;
return make_tuple(w.get_secret_number());
}
static
@@ -75,7 +77,7 @@ namespace boost_python_test {
);
throw_error_already_set();
}
long number = extract<long>(state[0]);
if (number != 42)
w.set_secret_number(number);

View File

@@ -29,7 +29,7 @@ r'''>>> import pickle2_ext
>>> wd.__dict__
{'x': 1}
>>> try: pstr = pickle.dumps(wd)
... except RuntimeError, err: print err
... except RuntimeError, err: print err[0]
...
Incomplete pickle support (__getstate_manages_dict__ not set)
'''

View File

@@ -25,6 +25,10 @@
#include <boost/python/extract.hpp>
#include <boost/python/back_reference.hpp>
#if BOOST_WORKAROUND(__SUNPRO_CC, BOOST_TESTED_AT(0x580)) || BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1500))
# define make_tuple boost::python::make_tuple
#endif
namespace boost_python_test {
// A friendly class.
@@ -49,18 +53,18 @@ namespace boost_python_test {
boost::python::tuple
getinitargs(const world& w)
{
return boost::python::make_tuple(w.get_country());
using namespace boost::python;
return make_tuple(w.get_country());
}
static
boost::python::tuple
getstate(boost::python::object w_obj)
{
world const& w = boost::python::extract<world const&>(w_obj)();
using namespace boost::python;
world const& w = extract<world const&>(w_obj)();
return boost::python::make_tuple(
w_obj.attr("__dict__"),
w.get_secret_number());
return make_tuple(w_obj.attr("__dict__"), w.get_secret_number());
}
static
@@ -69,7 +73,7 @@ namespace boost_python_test {
{
using namespace boost::python;
world& w = extract<world&>(w_obj)();
if (len(state) != 2)
{
PyErr_SetObject(PyExc_ValueError,
@@ -78,11 +82,11 @@ namespace boost_python_test {
);
throw_error_already_set();
}
// restore the object's __dict__
dict d = extract<dict>(w_obj.attr("__dict__"))();
d.update(state[0]);
// restore the internal state of the C++ object
long number = extract<long>(state[1]);
if (number != 42)

View File

@@ -1,7 +0,0 @@
import sys
pythonpath = sys.argv[1]
scriptfile = sys.argv[2]
sys.argv = sys.argv[2:]
sys.path.append(pythonpath)
execfile(scriptfile)

View File

@@ -26,13 +26,8 @@ void work_with_string(object print)
print(data.capitalize());
print('[' + data.center(30) + ']');
print(data.count("t"));
#if PY_VERSION_HEX < 0x03000000
print(data.encode("utf-8"));
print(data.decode("utf-8"));
#else
print(data.encode("utf-8").attr("decode")("utf-8"));
print(data.encode("utf-8").attr("decode")("utf-8"));
#endif
BOOST_ASSERT(!data.endswith("xx"));
BOOST_ASSERT(!data.startswith("test"));

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