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mirror of https://github.com/boostorg/python.git synced 2026-01-26 06:42:27 +00:00

Apply fixes from Dirk Gerrits <dirk@gerrits.homeip.net>

[SVN r16506]
This commit is contained in:
Dave Abrahams
2002-12-04 13:36:03 +00:00
parent 59b1a8e71c
commit c772038e77

View File

@@ -14,7 +14,7 @@
span.c3 {color: #ff0000}
h2.c2 {text-align: center}
h1.c1 {text-align: center}
</style>
</style>
</head>
<body>
@@ -74,7 +74,6 @@
<dt><a href="#allow_null-spec"><code>allow_null</code></a></dt>
</dl>
</dd>
</dl>
<hr>
@@ -91,13 +90,12 @@
<p><code>handle</code> is a smart pointer to a Python object type; it
holds a pointer of type <code>T*</code>, where T is its template
parameter. <code>T</code> must be either a type derived from
<code>PyObject</code> or a <a href="definitions.html#POD">POD</a>
type whose initial <code>sizeof(PyObject)</code> bytes are
layout-compatible with <code>PyObject</code>. Use
<code>handle&lt;&gt;</code> at the boundary between tehe
Python/'C' API and high-level code; prefer <code><a
<code>PyObject</code> or a <a href="definitions.html#POD">POD</a> type
whose initial <code>sizeof(PyObject)</code> bytes are layout-compatible
with <code>PyObject</code>. Use <code>handle&lt;&gt;</code> at the
boundary between tehe Python/'C' API and high-level code; prefer <code><a
href="object.html#object-spec">object</a></code> for a generalized
interface to Python objects.
interface to Python objects.</p>
<p><a name="upcast"></a>In this document, the term "upcast" refers to an
operation which converts a pointer <code>Y*</code> to a base class
@@ -174,7 +172,8 @@ virtual ~handle();
</pre>
<dl class="function-semantics">
<dt><b>Effects:</b> <code>Py_XDECREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(m_p))</code></dt>
<dt><b>Effects:</b>
<code>Py_XDECREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(m_p))</code></dt>
</dl>
<pre>
template &lt;class Y&gt;
@@ -182,8 +181,9 @@ explicit handle(detail::borrowed&lt;null_ok&lt;Y&gt; &gt;* p);
</pre>
<dl class="function-semantics">
<dt><b>Effects:</b>
<code>Py_XINCREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(p)); m_p&nbsp;=&nbsp;</code><i>upcast</i><code>&lt;T*&gt;(p);</code></dt>
<dt><b>Effects:</b>
<code>Py_XINCREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(p));
m_p&nbsp;=&nbsp;</code><i>upcast</i><code>&lt;T*&gt;(p);</code></dt>
</dl>
<pre>
template &lt;class Y&gt;
@@ -192,7 +192,8 @@ explicit handle(null_ok&lt;detail::borrowed&lt;Y&gt; &gt;* p);
<dl class="function-semantics">
<dt><b>Effects:</b>
<code>Py_XINCREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(p)); m_p&nbsp;=&nbsp;</code><i>upcast</i><code>&lt;T*&gt;(p);</code></dt>
<code>Py_XINCREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(p));
m_p&nbsp;=&nbsp;</code><i>upcast</i><code>&lt;T*&gt;(p);</code></dt>
</dl>
<pre>
template &lt;class Y&gt;
@@ -201,7 +202,8 @@ explicit handle(detail::borrowed&lt;Y&gt;* p);
<dl class="function-semantics">
<dt><b>Effects:</b>
<code>Py_XINCREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(p)); m_p&nbsp;=&nbsp;</code><i>upcast</i><code>&lt;T*&gt;(<a href=
<code>Py_XINCREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(p));
m_p&nbsp;=&nbsp;</code><i>upcast</i><code>&lt;T*&gt;(<a href=
"errors.html#expect_non_null-spec">expect_non_null</a>(p));</code></dt>
</dl>
<pre>
@@ -211,7 +213,7 @@ explicit handle(null_ok&lt;Y&gt;* p);
<dl class="function-semantics">
<dt><b>Effects:</b>
<code>Py_XINCREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(p));&nbsp;m_p&nbsp;=&nbsp;</code><i>upcast</i><code>&lt;T*&gt;(p);</code></dt>
<code>m_p&nbsp;=&nbsp;</code><i>upcast</i><code>&lt;T*&gt;(p);</code></dt>
</dl>
<pre>
template &lt;class Y&gt;
@@ -220,8 +222,7 @@ explicit handle(Y* p);
<dl class="function-semantics">
<dt><b>Effects:</b>
<code>Py_XINCREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(p));&nbsp;m_p&nbsp;=&nbsp;</code><i>upcast</i><code>&lt;T*&gt;(<a
href=
<code>m_p&nbsp;=&nbsp;</code><i>upcast</i><code>&lt;T*&gt;(<a href=
"errors.html#expect_non_null-spec">expect_non_null</a>(p));</code></dt>
</dl>
<pre>
@@ -252,7 +253,8 @@ handle&amp; operator=(handle&lt;Y&gt; const &amp; r); // never throws
<dl class="function-semantics">
<dt><b>Effects:</b>
<code>Py_XINCREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(r.m_p));&nbsp;Py_XDECREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(m_p));&nbsp;m_p&nbsp;=&nbsp;r.m_p;</code></dt>
<code>Py_XINCREF(</code><i>upcast</i><code>&lt;PyObject*&gt;(r.m_p));&nbsp;Py_XDECREF(</code><i>
upcast</i><code>&lt;PyObject*&gt;(m_p));&nbsp;m_p&nbsp;=&nbsp;r.m_p;</code></dt>
</dl>
<pre>
T* release();
@@ -262,13 +264,13 @@ T* release();
<dt><b>Effects:</b> <code>T* x = m_p;&nbsp;m_p&nbsp;=&nbsp;0;return
x;</code></dt>
</dl>
<pre>
void reset();
</pre>
<dl class="function-semantics">
<dt><b>Effects:</b> <code>*this&nbsp;=&nbsp;handle&lt;T&gt;();</code></dt>
<dt><b>Effects:</b>
<code>*this&nbsp;=&nbsp;handle&lt;T&gt;();</code></dt>
</dl>
<h4><a name="handle-spec-observers">Class <code>handle</code>
@@ -301,28 +303,26 @@ operator bool_type() const; // never throws
<h3><a name="borrowed-spec"></a><code>borrowed</code></h3>
<pre>
template <class T>
detail::borrowed<T>* borrowed(T* p)
template &lt;class T&gt;
detail::borrowed&lt;T&gt;* borrowed(T* p)
{
return (detail::borrowed<T>*)p;
return (detail::borrowed&lt;T&gt;*)p;
}
</pre>
<h3><a name="allow_null-spec"></a><code>allow_null</code></h3>
<pre>
template <class T>
null_ok<T>* allow_null(T* p)
template &lt;class T&gt;
null_ok&lt;T&gt;* allow_null(T* p)
{
return (null_ok<T>*)p;
return (null_ok&lt;T&gt;*)p;
}
</pre>
<p>Revised
<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->
13 November, 2002
<!--webbot bot="Timestamp" endspan i-checksum="39359" -->
13 November, 2002
<!--webbot bot="Timestamp" endspan i-checksum="39359" -->
</p>
<p class="c4">&copy; Copyright <a href=