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<dt><span class="section"><a href="init_hpp.html#high_level_components.init_hpp.introduction">Introduction</a></span></dt>
<dd><dl><dt><span class="section"><a href="init_hpp.html#high_level_components.init_hpp.introduction.init_expressions">init-expressions</a></span></dt></dl></dd>
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template <code class="computeroutput"><span class="identifier">init</span></code></a></span></dt>
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template <code class="computeroutput"><span class="identifier">init</span></code> constructors</a></span></dt>
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template <code class="computeroutput"><span class="identifier">init</span></code> observer
functions</a></span></dt>
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template <code class="computeroutput"><span class="identifier">optional</span></code> </a></span></dt>
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<p>
&lt;boost/python/init.hpp&gt; defines the interface for exposing C++ constructors
to Python as extension class __init__ functions.
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<a name="high_level_components.init_hpp.introduction.init_expressions"></a><a class="link" href="init_hpp.html#high_level_components.init_hpp.introduction.init_expressions" title="init-expressions">init-expressions</a>
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<p>
An init-expression is used to describe a family of __init__ methods to
be generated for an extension class, and the result has the following
properties:
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<dt><span class="term">docstring</span></dt>
<dd><p>
An ntbs whose value will bound to the method's __doc__ attribute
</p></dd>
<dt><span class="term">keywords</span></dt>
<dd><p>
A keyword-expression which will be used to name (a trailing subsequence
of) the arguments to the generated __init__ function(s).
</p></dd>
<dt><span class="term">call_policies</span></dt>
<dd><p>
An instance of a model of CallPolicies.
</p></dd>
<dt><span class="term">argument_types</span></dt>
<dd><p>
An MPL sequence of C++ argument types which will be used to construct
the wrapped C++ object. An init expression has one or more valid
prefixes which are given by a sequence of prefixes of its argument
types.
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<td align="right"><div class="copyright-footer">Copyright &#169; 2002-2005, 2015 David Abrahams, Stefan Seefeld<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>
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