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<h1>apr_version.h File Reference</h1>APR Versioning Interface. <a href="#_details">More...</a>
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<code>#include "<a class="el" href="apr_8h-source.html">apr.h</a>"</code><br>
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<a href="apr__version_8h-source.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><br><h2>Data Structures</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__version__t.html">apr_version_t</a></td></tr>
<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="apr__version_8h.html#a0">APR_MAJOR_VERSION</a> 1</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="apr__version_8h.html#a1">APR_MINOR_VERSION</a> 1</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="apr__version_8h.html#a2">APR_PATCH_VERSION</a> 1</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="apr__version_8h.html#a3">APR_IS_DEV_STRING</a> "-dev"</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="apr__version_8h.html#a4">APR_STRINGIFY</a>(n) APR_STRINGIFY_HELPER(n)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="apr__version_8h.html#a5">APR_STRINGIFY_HELPER</a>(n) #n</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="apr__version_8h.html#a6">APR_VERSION_STRING</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="apr__version_8h.html#a7">APR_VERSION_STRING_CSV</a></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="apr__version_8h.html#a8">apr_version</a> (<a class="el" href="structapr__version__t.html">apr_version_t</a> *pvsn)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="apr__version_8h.html#a9">apr_version_string</a> (void)</td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
APR Versioning Interface.
<p>
APR's Version<p>
There are several different mechanisms for accessing the version. There is a string form, and a set of numbers; in addition, there are constants which can be compiled into your application, and you can query the library being used for its actual version.<p>
Note that it is possible for an application to detect that it has been compiled against a different version of APR by use of the compile-time constants and the use of the run-time query function.<p>
APR version numbering follows the guidelines specified in:<p>
<a href="http://apr.apache.org/versioning.html">http://apr.apache.org/versioning.html</a><hr><h2>Define Documentation</h2>
<a class="anchor" name="a3" doxytag="apr_version.h::APR_IS_DEV_STRING"></a><p>
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<td class="md" nowrap valign="top">#define APR_IS_DEV_STRING "-dev" </td>
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Internal: string form of the "is dev" flag </td>
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<a class="anchor" name="a0" doxytag="apr_version.h::APR_MAJOR_VERSION"></a><p>
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<td class="md" nowrap valign="top">#define APR_MAJOR_VERSION 1 </td>
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major version Major API changes that could cause compatibility problems for older programs such as structure size changes. No binary compatibility is possible across a change in the major version. </td>
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<a class="anchor" name="a1" doxytag="apr_version.h::APR_MINOR_VERSION"></a><p>
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<td class="md" nowrap valign="top">#define APR_MINOR_VERSION 1 </td>
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minor version Minor API changes that do not cause binary compatibility problems. Reset to 0 when upgrading APR_MAJOR_VERSION </td>
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<a class="anchor" name="a2" doxytag="apr_version.h::APR_PATCH_VERSION"></a><p>
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<td class="md" nowrap valign="top">#define APR_PATCH_VERSION 1 </td>
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patch level The Patch Level never includes API changes, simply bug fixes. Reset to 0 when upgrading APR_MINOR_VERSION </td>
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<a class="anchor" name="a4" doxytag="apr_version.h::APR_STRINGIFY"></a><p>
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<td class="md" nowrap valign="top">#define APR_STRINGIFY </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">n </td>
<td class="mdname1" valign="top" nowrap> </td>
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<td class="md" nowrap> APR_STRINGIFY_HELPER(n)</td>
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Properly quote a value as a string in the C preprocessor </td>
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<td class="md" nowrap valign="top">#define APR_STRINGIFY_HELPER </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">n </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> #n</td>
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Helper macro for APR_STRINGIFY </td>
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<td class="md" nowrap valign="top">#define APR_VERSION_STRING </td>
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<b>Value:</b><div class="fragment"><pre class="fragment"><a class="code" href="group__apr__general.html#ga11">APR_STRINGIFY</a>(APR_MAJOR_VERSION) <span class="stringliteral">"."</span> \
<a class="code" href="group__apr__general.html#ga11">APR_STRINGIFY</a>(APR_MINOR_VERSION) <span class="stringliteral">"."</span> \
<a class="code" href="group__apr__general.html#ga11">APR_STRINGIFY</a>(APR_PATCH_VERSION) \
<a class="code" href="apr__version_8h.html#a3">APR_IS_DEV_STRING</a>
</pre></div>The formatted string of APR's version </td>
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<a class="anchor" name="a7" doxytag="apr_version.h::APR_VERSION_STRING_CSV"></a><p>
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<td class="md" nowrap valign="top">#define APR_VERSION_STRING_CSV </td>
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<b>Value:</b><div class="fragment"><pre class="fragment"><a class="code" href="apr__version_8h.html#a0">APR_MAJOR_VERSION</a> ##, \
<span class="preprocessor"> ##APR_MINOR_VERSION ##, \</span>
<span class="preprocessor"> ##APR_PATCH_VERSION</span>
</pre></div>An alternative formatted string of APR's version </td>
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<hr><h2>Function Documentation</h2>
<a class="anchor" name="a8" doxytag="apr_version.h::apr_version"></a><p>
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<td class="md" nowrap valign="top">void apr_version </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="structapr__version__t.html">apr_version_t</a> * </td>
<td class="mdname1" valign="top" nowrap> <em>pvsn</em> </td>
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Return APR's version information information in a numeric form.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em>pvsn</em> </td><td>Pointer to a version structure for returning the version information. </td></tr>
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<a class="anchor" name="a9" doxytag="apr_version.h::apr_version_string"></a><p>
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<td class="md" nowrap valign="top">const char* apr_version_string </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">void </td>
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Return APR's version information as a string. </td>
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