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<div id="projectname">Crypto++
 <span id="projectnumber">7.0</span>
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<div id="projectbrief">Free C++ class library of cryptographic schemes</div>
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<p>Debugging and diagnostic assertions.
<a href="#details">More...</a></p>
<p><a href="trap_8h_source.html">Go to the source code of this file.</a></p>
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Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_debug_trap_handler.html">DebugTrapHandler</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">Default SIGTRAP handler. <a href="class_debug_trap_handler.html#details">More...</a><br /></td></tr>
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Macros</h2></td></tr>
<tr class="memitem:adf3b392588bc94cbeae9f415a78c7b95"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(exp)   { ... }</td></tr>
<tr class="memdesc:adf3b392588bc94cbeae9f415a78c7b95"><td class="mdescLeft"> </td><td class="mdescRight">Debugging and diagnostic assertion. <a href="#adf3b392588bc94cbeae9f415a78c7b95">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Debugging and diagnostic assertions. </p>
<p><code>CRYPTOPP_ASSERT</code> is the library's debugging and diagnostic assertion. <code>CRYPTOPP_ASSERT</code> is enabled by <code>CRYPTOPP_DEBUG</code>, <code>DEBUG</code> or <code>_DEBUG</code>.</p>
<p><code>CRYPTOPP_ASSERT</code> raises a <code>SIGTRAP</code> (Unix) or calls <code>__debugbreak()</code> (Windows). <code>CRYPTOPP_ASSERT</code> is only in effect when the user requests a debug configuration. Unlike Posix assert, <code>NDEBUG</code> (or failure to define it) does not affect the library. The traditional Posix define <code>NDEBUG</code> has no effect on <code>CRYPTOPP_DEBUG</code> or <a class="el" href="class_debug_trap_handler.html" title="Default SIGTRAP handler. ">DebugTrapHandler</a>. </p><dl class="section since"><dt>Since</dt><dd>Crypto++ 5.6.5 </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_debug_trap_handler.html" title="Default SIGTRAP handler. ">DebugTrapHandler</a>, <a href="http://github.com/weidai11/cryptopp/issues/277">Issue 277</a>, <a href="http://seclists.org/oss-sec/2016/q3/520">CVE-2016-7420</a> </dd></dl>
<p class="definition">Definition in file <a class="el" href="trap_8h_source.html">trap.h</a>.</p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a id="adf3b392588bc94cbeae9f415a78c7b95"></a>
<h2 class="memtitle"><span class="permalink"><a href="#adf3b392588bc94cbeae9f415a78c7b95">◆ </a></span>CRYPTOPP_ASSERT</h2>
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<td class="memname">#define CRYPTOPP_ASSERT</td>
<td>(</td>
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<td class="paramname">exp</td><td>)</td>
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<p>Debugging and diagnostic assertion. </p>
<p><code>CRYPTOPP_ASSERT</code> is the library's debugging and diagnostic assertion. <code>CRYPTOPP_ASSERT</code> is enabled by the preprocessor macros <code>CRYPTOPP_DEBUG</code>, <code>DEBUG</code> or <code>_DEBUG</code>.</p>
<p><code>CRYPTOPP_ASSERT</code> raises a <code>SIGTRAP</code> (Unix) or calls <code>DebugBreak()</code> (Windows). <code>CRYPTOPP_ASSERT</code> is only in effect when the user explicitly requests a debug configuration.</p>
<p>If you want to ensure <code>CRYPTOPP_ASSERT</code> is inert, then <em>do not</em> define <code>CRYPTOPP_DEBUG</code>, <code>DEBUG</code> or <code>_DEBUG</code>. Avoiding the defines means <code>CRYPTOPP_ASSERT</code> is preprocessed into an empty string.</p>
<p>The traditional Posix define <code>NDEBUG</code> has no effect on <code>CRYPTOPP_DEBUG</code>, <code>CRYPTOPP_ASSERT</code> or <a class="el" href="class_debug_trap_handler.html" title="Default SIGTRAP handler. ">DebugTrapHandler</a>.</p>
<p>An example of using <a class="el" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a> and <a class="el" href="class_debug_trap_handler.html" title="Default SIGTRAP handler. ">DebugTrapHandler</a> is shown below. The library's test program, <code>cryptest.exe</code> (from test.cpp), exercises the structure: </p><pre>
#if defined(CRYPTOPP_DEBUG) && defined(UNIX_SIGNALS_AVAILABLE)
static const <a class="el" href="class_debug_trap_handler.html" title="Default SIGTRAP handler. ">DebugTrapHandler</a> g_dummyHandler;
#endif</pre><pre> int main(int argc, char* argv[])
{
CRYPTOPP_ASSERT(argv != nullptr);
...
}
</pre> <dl class="section since"><dt>Since</dt><dd>Crypto++ 5.6.5 </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_debug_trap_handler.html" title="Default SIGTRAP handler. ">DebugTrapHandler</a>, <a class="el" href="struct_signal_handler.html" title="Signal handler for Linux and Unix compatibles. ">SignalHandler</a>, <a href="http://github.com/weidai11/cryptopp/issues/277">Issue 277</a>, <a href="http://seclists.org/oss-sec/2016/q3/520">CVE-2016-7420</a> </dd></dl>
<p class="definition">Definition at line <a class="el" href="trap_8h_source.html#l00060">60</a> of file <a class="el" href="trap_8h_source.html">trap.h</a>.</p>
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