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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<title>Boost.Compatibilty library</title>
</head>
<body>
<div>
<img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle"
width="277" height="86">
<hr>
<h1>Boost.Compatibilty library</h1>
<p>This library provides workarounds which allow the other Boost
libraries to be used on otherwise non-conforming platforms. We hope that
it will be possible to remove this library at some time in the future as
standard library suppliers become more conforming.</p>
<h2>Missing C++ standard library CXX headers (e.g <cstdio>)
workaround</h2>
<p>The Python script: <tt><a href=
"generate_cpp_c_headers.py">generate_cpp_c_headers.py</a></tt> creates a
full set of C++ C header files (e.g. <cstdio>) that are missing on
some platforms. The header files created by this script reside in the
directory <tt><a href=
"../../boost/compatibility/cpp_c_headers/">boost/compatibility/cpp_c_headers</a></tt>.
To use the header files, add this directory to the include file search
path. For example:</p>
<pre>
cxx -I/usr/local/boost/boost/compatibility/cpp_c_headers ...
</pre>
<p>Supported platforms are:</p>
<ul>
<li>Compaq Alpha, RedHat 6.2 Linux, Compaq C++ V6.3 (cxx)</li>
<li>Compaq Alpha, Tru64 Unix V5.0, Compaq C++ V6.2 (cxx)</li>
<li>Silicon Graphics, IRIX 6.5, MIPSpro Compilers: Version 7.3.1.1m
(CC)</li>
</ul>
<p>There are more powerful alternatives to using the Boost.Compatibility
library CXX headers, e.g. <a href="http://stlport.sourceforge.net">STLport</a>
or <a href=
"http://www.fnal.gov/docs/working-groups/fpcltf/Pkg/ISOcxx/doc/0ISOcxx.html">
ISOCXX</a>. However, in contrast to these alternatives, the
<tt>generate_cpp_c_headers.py</tt> script is very light-weight (less than
100 non-comment lines of Python code), much less ambitious, significantly
easier to maintain and therefore more suitable as an interim
workaround.</p>
<p>Contributed by Ralf W. Grosse-Kunstleve.</p>
<h2>Missing C++ standard library <limits> header workaround
<a href="../../boost/limits.hpp">boost/limits.hpp</a></h2>
<p>Several Boost libraries require the standard library's <limits>
header, yet this header is not always supplied by non-conforming
compilers and libraries. Header <a href=
"../../boost/limits.hpp">boost/limits.hpp</a> simply includes the
standard library <limits> header if available, otherwise includes
<a href=
"../../boost/detail/limits.hpp">boost/detail/limits.hpp</a>.
BOOST_NO_LIMITS from <a href="../config/config.htm">boost/config.hpp</a>
is used to determine <limits> availability.</p>
<p>Note also the test program <a href=
"../config/test/limits_test.cpp">limits_test.cpp</a></p>
<p>Contributed by Jens Maurer.</p>
<p> <br clear="all"></p>
<hr>
<p><a href="http://validator.w3.org/check?uri=referer"><img border="0"
src="../../doc/images/valid-html401.png" alt=
"Valid HTML 4.01 Transitional" height="31" width="88"></a></p>
<p>Revised
<!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B, %Y" startspan -->01 December, 2006<!--webbot bot="Timestamp" endspan i-checksum="38508" --></p>
<p><i>© Copyright Ralf W. Grosse-Kunstleve 2001</i></p>
<p><i>Distributed under the Boost Software License, Version 1.0. (See
accompanying file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
copy at <a href=
"http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>)</i></p>
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