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documentation cleanup

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[SVN r44342]
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Emil Dotchevski
2008-04-12 06:08:10 +00:00
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<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN'
'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'>
<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>
<head>
<meta http-equiv='Content-Type' content='text/html; charset=utf-8'/>
<title>Tutorial: Using enable_exception_cloning() at the Time of the Throw</title>
<link href='reno.css' type='text/css' rel='stylesheet'/>
</head>
<body>
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<div id="boost_logo">
<a href="http://www.boost.org"><img style="border:0" src="http://www.boost.org/boost.png" alt="Boost" width="277" height="86"/></a>
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<h1>Boost Exception</h1>
</div>
<div class="RenoIncludeDIV"><h3>Using enable_exception_cloning() at the Time of the Throw</h3>
<p>Here is how cloning can be enabled in a throw-expression (15.1):</p>
<pre>#include &lt;<span class="RenoLink"><a href="exception_enable_exception_cloning_hpp.html">boost/exception/enable_exception_cloning.hpp</a></span>&gt;
#include &lt;<span class="RenoLink"><a href="exception_error_info_hpp.html">boost/exception/info.hpp</a></span>&gt;
#include &lt;stdio.h&gt;
#include &lt;errno.h&gt;
typedef boost::error_info&lt;struct tag_errno,int&gt; errno_info;
class file_read_error: public boost::<span class="RenoLink"><a href="exception.html">exception</a></span> { };
void
file_read( FILE * f, void * buffer, size_t size )
{
if( size!=fread(buffer,1,size,f) )
throw boost::<span class="RenoLink"><a href="enable_exception_cloning.html">enable_exception_cloning</a></span>(file_read_error()) &lt;&lt;
errno_info(errno);
}</pre>
</div><h3>See also:</h3>
<div class="RenoPageList"><a href="cloning.html">Tutorial: Transporting of Exceptions between Threads<br/>
</a></div>
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<small>Copyright (c) 2006-2008 by Emil Dotchevski and Reverge Studios, Inc.<br/>
Distributed under the <a href="http://www.boost.org/LICENSE_1_0.txt">Boost Software License, Version 1.0</a>.</small>
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