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support for exception_ptr and nesting of exception_ptr objects in boost::diagnostic_information

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[SVN r53066]
This commit is contained in:
Emil Dotchevski
2009-05-17 06:12:29 +00:00
parent 4138359063
commit de1a3daa85
47 changed files with 7227 additions and 6549 deletions
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doc/exception_ptr.html
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@ -21,13 +21,14 @@
<!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
<div class="RenoIncludeDIV"><div class="RenoAutoDIV"><h3>exception_ptr</h3>
</div>
<div class="RenoIncludeDIV"><p><span class="RenoEscape">&#35;<!--<wiki>`&#35;</wiki>--></span>include &lt;<span class="RenoLink"><a href="exception_cloning_hpp.html">boost/exception_ptr.hpp</a></span>&gt;</p>
<div class="RenoIncludeDIV"><p><span class="RenoEscape">&#35;<!--<wiki>`&#35;</wiki>--></span>include &lt;<span class="RenoLink"><a href="boost_exception_ptr_hpp.html">boost/exception_ptr.hpp</a></span>&gt;</p>
<pre>namespace
boost
{
<span class="RenoIncludeSPAN"> typedef ---unspecified--- <span class="RenoLink">exception_ptr</span>;</span>
}</pre>
</div><p>The <span class="RenoLink">exception_ptr</span> type can be used to refer to a copy of an exception object. It is Default Constructible, Copy Constructible, Assignable and Equality Comparable; <span class="RenoLink">exception_ptr</span>'s operations do not throw.</p>
<p>The referenced object remains valid at least as long as there is an <span class="RenoLink">exception_ptr</span> object that refers to it.</p>
<p>Two instances of <span class="RenoLink">exception_ptr</span> are equivalent and compare equal if and only if they refer to the same exception.</p>
<p>The default constructor of <span class="RenoLink">exception_ptr</span> produces the null value of the type. The null value is equivalent only to itself.</p>
<h4>Thread safety</h4>
@ -35,14 +36,18 @@ boost
<li> It is illegal for multiple threads to modify the same <span class="RenoLink">exception_ptr</span> object concurrently.</li>
<li> While calling <span class="RenoLink"><a href="current_exception.html">current_exception</a></span> makes a copy of the current exception object, it is still possible for the two copies to share internal state. Therefore, in general it is not safe to call <span class="RenoLink"><a href="rethrow_exception.html">rethrow_exception</a></span> concurrently to throw the same exception object into multiple threads.</li>
</ul></div>
<h4>Nesting of exceptions:</h4>
<p>An <span class="RenoLink">exception_ptr</span> can be added as <span class="RenoLink"><a href="error_info.html">error_info</a></span> to any boost::<span class="RenoLink"><a href="exception.html">exception</a></span>. This is a convenient way to nest exceptions. There is no limit on the depth of the nesting, however cyclic references result in undefined behavior.</p>
</div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
<h3>See Also:</h3>
<div class="RenoPageList"><a href="boost-exception.html">Boost Exception<br/>
</a><a href="exception_cloning_hpp.html">boost/exception_ptr.hpp<br/>
</a><a href="boost_exception_ptr_hpp.html">boost/exception_ptr.hpp<br/>
</a><a href="copy_exception.html">copy_exception<br/>
</a><a href="current_exception.html">current_exception<br/>
</a><a href="diagnostic_information.html">diagnostic_information<br/>
</a><a href="enable_current_exception.html">enable_current_exception<br/>
</a><a href="frequently_asked_questions.html">Frequently Asked Questions<br/>
</a><a href="original_exception_type.html">original_exception_type<br/>
</a><a href="rethrow_exception.html">rethrow_exception<br/>
</a><a href="unknown_exception.html">unknown_exception<br/>
</a></div>