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71 lines
2.8 KiB
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71 lines
2.8 KiB
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<a href="../index.htm"><IMG height=86
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alt="c++boost.gif (8819 bytes)"
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src="../../../../c++boost.gif"
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width=277 align=center></a>
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<hr>
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<!-- Generated by Doxygen 1.2.12 -->
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<center>
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<a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="globals.html">File Members</a> </center>
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<hr><h1>identity.hpp File Reference</h1><code>#include <boost/preprocessor/empty.hpp></code><br>
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<table border=0 cellpadding=0 cellspacing=0>
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<tr><td colspan=2><br><h2>Defines</h2></td></tr>
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<tr><td nowrap align=right valign=top>#define </td><td valign=bottom><a class="el" href="identity_8hpp.html#a0">BOOST_PREPROCESSOR_IDENTITY</a>(X)</td></tr>
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<tr><td> </td><td><font size=-1><em>Expands to X once invoked.</em> <a href="#a0">More...</a><em></em></font><br><br></td></tr>
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</table>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
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<a href="../../../../boost/preprocessor/identity.hpp">Click here to see the header.</a>
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<p>
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<hr><h2>Define Documentation</h2>
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<a name="a0" doxytag="identity.hpp::BOOST_PREPROCESSOR_IDENTITY"></a><p>
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<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<table cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td class="md" nowrap valign="top"> #define BOOST_PREPROCESSOR_IDENTITY</td>
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<td class="md" valign="top">( </td>
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<td class="md" nowrap valign="top">X </td>
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<td class="mdname1" valign="top" nowrap> </td>
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<td class="md" valign="top">) </td>
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<td class="md" nowrap>
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</table>
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</td>
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</tr>
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</table>
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<table cellspacing=5 cellpadding=0 border=0>
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<tr>
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<td>
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</td>
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<td>
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<p>
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Expands to X once invoked.
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<p>
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Designed to be used with <a class="el" href="if_8hpp.html#a0">BOOST_PREPROCESSOR_IF</a>(), when one of the clauses need to be invoked.
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<p>
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Example:
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<p>
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<pre><div class="fragment"><pre>
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BOOST_PREPROCESSOR_IDENTITY(X)()
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// ^^ NOTE!
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</pre></div></pre>
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<p>
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The above expands to:
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<p>
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<pre><div class="fragment"><pre>
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X
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</pre></div></pre>
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<p>
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NOTE: If <a class="el" href="identity_8hpp.html#a0">BOOST_PREPROCESSOR_IDENTITY</a>() is not invoked, the expansion will not be usable. </td>
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</tr>
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</table>
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<hr>
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<p><EFBFBD> Copyright Housemarque, Inc. 2001</p>
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<p>Permission to copy, use, modify, sell and distribute this document is granted
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provided this copyright notice appears in all copies. This document is provided
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"as is" without express or implied warranty, and with no claim as to its suitability
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for any purpose. </p>
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<p>Generated: <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %b %Y" startspan --><!--webbot bot="Timestamp" endspan i-checksum="15246" --></p>
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