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<h1>rcsid.hpp File Reference</h1>Define an RCS id string in every object file compiled from a source file that includes <a class="el" href="rcsid_8hpp.html" title="Define an RCS id string in every object file compiled from a source file that includes...">rcsid.hpp</a>.
<a href="#_details">More...</a>
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<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="rcsid_8hpp.html#bae632aff1c04a47d6495db05a7a7e28">EXIV2_RCSID</a>(id)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Macro to store version information in each object file. <a href="#bae632aff1c04a47d6495db05a7a7e28"></a><br></td></tr>
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<hr><h2>Detailed Description</h2>
Define an RCS id string in every object file compiled from a source file that includes <a class="el" href="rcsid_8hpp.html" title="Define an RCS id string in every object file compiled from a source file that includes...">rcsid.hpp</a>.
<p>
This is a simplified version of the ACE_RCSID macro that is used in the <a href="http://www.cs.wustl.edu/~schmidt/ACE.html">ACE(TM)</a> distribution.<p>
<dl class="version" compact><dt><b>Version:</b></dt><dd></dd></dl>
<dl class="rcs" compact><dt><b>Rev</b></dt><dd>1750 </dd></dl>
<dl class="author" compact><dt><b>Author:</b></dt><dd>Andreas Huggel (ahu) <a href="mailto:ahuggel@gmx.net">ahuggel@gmx.net</a> </dd></dl>
<dl class="date" compact><dt><b>Date:</b></dt><dd>02-Feb-04, ahu: created </dd></dl>
<hr><h2>Define Documentation</h2>
<a class="anchor" name="bae632aff1c04a47d6495db05a7a7e28"></a><!-- doxytag: member="rcsid.hpp::EXIV2_RCSID" ref="bae632aff1c04a47d6495db05a7a7e28" args="(id)" -->
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<td class="memname">#define EXIV2_RCSID </td>
<td>(</td>
<td class="paramtype">id </td>
<td class="paramname"> </td>
<td> ) </td>
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<p>
<b>Value:</b><div class="fragment"><pre class="fragment"><span class="keyword">namespace </span>{ \
<span class="keyword">inline</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* getRcsId(<span class="keyword">const</span> <span class="keywordtype">char</span>*) { <span class="keywordflow">return</span> id ; } \
<span class="keyword">const</span> <span class="keywordtype">char</span>* rcsId = getRcsId(rcsId); \
}
</pre></div>Macro to store version information in each object file.
<p>
Use this macro by including the following two lines at the beginning of each *.cpp file. See the ident(1) manual pages for more information.<p>
<div class="fragment"><pre class="fragment"><span class="preprocessor"> #include "<a class="code" href="rcsid_8hpp.html" title="Define an RCS id string in every object file compiled from a source file that includes...">rcsid.hpp</a>"</span>
<a class="code" href="rcsid_8hpp.html#bae632aff1c04a47d6495db05a7a7e28" title="Macro to store version information in each object file.">EXIV2_RCSID</a>(<span class="stringliteral">"@(#) $Id$"</span>);
</pre></div><p>
The macro hack itself has the following purposes:<ol type=1>
<li>To define the RCS id string variable in the local namespace, so that there won't be any duplicate extern symbols at link time.</li><li>To avoid warnings of the type "variable declared and never used". </li></ol>
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