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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<!-- Copyright Ralf W. Grosse-Kunstleve 2006. Distributed under the Boost -->
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<title>Boost.Python - <boost/python/ssize_t.hpp></title>
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<h3><a href="../../../../index.htm"><img height="86" width=
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<h1 align="center"><a href=
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<h2 align="center">Header
<boost/python/ssize_t.hpp></h2>
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<h2>Contents</h2>
<dl class="page-index">
<dt><a href="#introduction">Introduction</a></dt>
<dt><a href="#typdefs">Typedef</a></dt>
<dt><a href="#macros">Constants</a></dt>
</dl>
<hr>
<h2><a name="introduction" id=
"introduction"></a>Introduction</h2>
<p>Python 2.5 introduces a new <tt>Py_ssize_t</tt> typedef and
two related macros (<a href=
"http://www.python.org/dev/peps/pep-0353/">PEP 353</a>). The
<tt><boost/python/ssize_t.hpp></tt> header imports these
definitions into the <tt>boost::python</tt> namespace as
<tt>ssize_t</tt>, <tt>ssize_t_max</tt>, and <tt>ssize_t_min</tt>.
Appropriate definitions are provided for backward compatibility
with previous Python versions.</p>
<h2><a name="typedefs" id="typedefs"></a>Typedefs</h2>Imports
<tt>Py_ssize_t</tt> into the <tt>boost::python</tt> namespace if
available, or provides an appropriate typedef for backward
compatibility:
<pre>
#if PY_VERSION_HEX >= 0x02050000
typedef Py_ssize_t ssize_t;
#else
typedef int ssize_t;
#endif
</pre>
<h2><a name="constants" id="constants"></a>Constants</h2>Imports
<tt>PY_SSIZE_T_MAX</tt> and <tt>PY_SSIZE_T_MIN</tt> as constants
into the <tt>boost::python</tt> namespace if available, or
provides appropriate constants for backward compatibility:
<pre>
#if PY_VERSION_HEX >= 0x02050000
ssize_t const ssize_t_max = PY_SSIZE_T_MAX;
ssize_t const ssize_t_min = PY_SSIZE_T_MIN;
#else
ssize_t const ssize_t_max = INT_MAX;
ssize_t const ssize_t_min = INT_MIN;
#endif
</pre>
<p>Revised
<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->
25 September, 2006
<!--webbot bot="Timestamp" endspan i-checksum="39359" --></p>
<p><i>© Copyright <a href=
"http://www.boost.org/people/ralf_w_grosse_kunstleve.htm">Ralf W.
Grosse-Kunstleve</a> 2006.</i></p>
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