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boost::throw_exception documentation added.

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[SVN r16239]
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Peter Dimov 2002-11-14 15:13:59 +00:00
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<h1><IMG SRC="../../c++boost.gif" WIDTH="276" HEIGHT="86" align="center">Boost <h1><IMG SRC="../../c++boost.gif" WIDTH="276" HEIGHT="86" align="center">Boost
Utility Library</h1> Utility Library</h1>
<p>The Boost Utility Library isn't really a single library at all. It is just <p>The Boost Utility Library isn't really a single library at all. It is just a
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<title>Boost: throw_exception.hpp documentation</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<h1>throw_exception.hpp</h1>
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<p>
The header <STRONG>&lt;boost/throw_exception.hpp&gt;</STRONG> defines the
helper function <STRONG>boost::throw_exception</STRONG>. It is intended to be
used in Boost libraries that need to throw exceptions, but support
configurations and platforms where exceptions aren't available, as indicated by
the presence of the <STRONG>BOOST_NO_EXCEPTIONS</STRONG> <A href="../config/config.htm#macro_ref">
configuration macro</A>.
</p>
<P>When <STRONG>BOOST_NO_EXCEPTIONS</STRONG> is not defined, <tt>boost::throw_exception(e)</tt>
is equivalent to <tt>throw e</tt>. Otherwise, the function is left undefined,
and the user is expected to supply an appropriate definition.</P>
<h3><a name="Synopsis">Synopsis</a></h3>
<pre>
namespace boost
{
#ifdef BOOST_NO_EXCEPTIONS
void throw_exception(std::exception const &amp; e); // user defined
#else
template&lt;class E&gt; void throw_exception(E const &amp; e)
{
throw e;
}
#endif
}
</pre>
<p><br>
<small>Copyright © 2002 by Peter Dimov. Permission to copy, use, modify, sell and
distribute this document is granted provided this copyright notice appears in
all copies. This document is provided "as is" without express or implied
warranty, and with no claim as to its suitability for any purpose.</small></p>
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