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<title>Apache Portable Runtime: Miscellaneous library routines</title>
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<h1>Miscellaneous library routines<br/>
<small>
[<a class="el" href="group___a_p_r.html">Apache Portability Runtime library</a>]</small>
</h1><table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#gaa93f0eb578d23995850d61f7d61c55c1">FALSE</a> 0</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#gaa8cecfc5c5c054d2875c03e77b7be15d">TRUE</a> (!FALSE)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#ga60fc208d93123acc7cf915a66e49e654">APR_ASCII_BLANK</a> '\040'</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#ga91c14ef7f03e82c07f4d3d56f63f8b6a">APR_ASCII_CR</a> '\015'</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#ga9e76601cef56a7a5b25f73fe6d57d7d9">APR_ASCII_LF</a> '\012'</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#gac7162c0b5d026a0717aaa98bf581349d">APR_ASCII_TAB</a> '\011'</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#ga41e537d6ad732766d12cd4eb61531678">APR_OFFSET</a>(p_type, field) ((long) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#gac16b1187b6ea63706c5dd48c88323dec">APR_OFFSETOF</a>(s_type, field) APR_OFFSET(s_type*,field)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#ga3c4f50d14ebe7a6add282d879521d552">APR_ALIGN</a>(size, boundary) (((size) + ((boundary) - 1)) & ~((boundary) - 1))</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#gab484e98426221f3212fcb67af0467381">APR_ALIGN_DEFAULT</a>(size) APR_ALIGN(size, 8)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#gae90215615972dfa4108018304361ef0b">APR_STRINGIFY</a>(n) APR_STRINGIFY_HELPER(n)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#ga71918dd8c53e093283b43b0ff0965439">APR_STRINGIFY_HELPER</a>(n) #n</td></tr>
<tr><td colspan="2"><h2>Typedefs</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__general.html#gafe9e657d61b61d62ecba34299a82a7ea">apr_signum_t</a></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>This is collection of oddballs that didn't fit anywhere else, and might move to more appropriate headers with the release of APR 1.0. </p>
<hr/><h2>Define Documentation</h2>
<a class="anchor" id="ga3c4f50d14ebe7a6add282d879521d552"></a><!-- doxytag: member="apr_general.h::APR_ALIGN" ref="ga3c4f50d14ebe7a6add282d879521d552" args="(size, boundary)" -->
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<td class="memname">#define APR_ALIGN</td>
<td>(</td>
<td class="paramtype">size, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">boundary </td>
<td class="paramname"></td>
<td> ) </td>
<td> (((size) + ((boundary) - 1)) & ~((boundary) - 1))</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Alignment macros </p>
</div>
</div>
<a class="anchor" id="gab484e98426221f3212fcb67af0467381"></a><!-- doxytag: member="apr_general.h::APR_ALIGN_DEFAULT" ref="gab484e98426221f3212fcb67af0467381" args="(size)" -->
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<div class="memproto">
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<td class="memname">#define APR_ALIGN_DEFAULT</td>
<td>(</td>
<td class="paramtype">size </td>
<td class="paramname"></td>
<td> ) </td>
<td> APR_ALIGN(size, 8)</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Default alignment </p>
</div>
</div>
<a class="anchor" id="ga60fc208d93123acc7cf915a66e49e654"></a><!-- doxytag: member="apr_general.h::APR_ASCII_BLANK" ref="ga60fc208d93123acc7cf915a66e49e654" args="" -->
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<td class="memname">#define APR_ASCII_BLANK '\040'</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>a space </p>
</div>
</div>
<a class="anchor" id="ga91c14ef7f03e82c07f4d3d56f63f8b6a"></a><!-- doxytag: member="apr_general.h::APR_ASCII_CR" ref="ga91c14ef7f03e82c07f4d3d56f63f8b6a" args="" -->
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<td class="memname">#define APR_ASCII_CR '\015'</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>a carrige return </p>
</div>
</div>
<a class="anchor" id="ga9e76601cef56a7a5b25f73fe6d57d7d9"></a><!-- doxytag: member="apr_general.h::APR_ASCII_LF" ref="ga9e76601cef56a7a5b25f73fe6d57d7d9" args="" -->
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<td class="memname">#define APR_ASCII_LF '\012'</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>a line feed </p>
</div>
</div>
<a class="anchor" id="gac7162c0b5d026a0717aaa98bf581349d"></a><!-- doxytag: member="apr_general.h::APR_ASCII_TAB" ref="gac7162c0b5d026a0717aaa98bf581349d" args="" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">#define APR_ASCII_TAB '\011'</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>a tab </p>
</div>
</div>
<a class="anchor" id="ga41e537d6ad732766d12cd4eb61531678"></a><!-- doxytag: member="apr_general.h::APR_OFFSET" ref="ga41e537d6ad732766d12cd4eb61531678" args="(p_type, field)" -->
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<td class="memname">#define APR_OFFSET</td>
<td>(</td>
<td class="paramtype">p_type, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">field </td>
<td class="paramname"></td>
<td> ) </td>
<td> ((long) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Finding offsets of elements within structures. Taken from the X code... they've sweated portability of this stuff so we don't have to. Sigh... </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>p_type</em> </td><td>pointer type name </td></tr>
<tr><td valign="top"></td><td valign="top"><em>field</em> </td><td>data field within the structure pointed to </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>offset </dd></dl>
</div>
</div>
<a class="anchor" id="gac16b1187b6ea63706c5dd48c88323dec"></a><!-- doxytag: member="apr_general.h::APR_OFFSETOF" ref="gac16b1187b6ea63706c5dd48c88323dec" args="(s_type, field)" -->
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<td class="memname">#define APR_OFFSETOF</td>
<td>(</td>
<td class="paramtype">s_type, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">field </td>
<td class="paramname"></td>
<td> ) </td>
<td> APR_OFFSET(s_type*,field)</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Finding offsets of elements within structures. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>s_type</em> </td><td>structure type name </td></tr>
<tr><td valign="top"></td><td valign="top"><em>field</em> </td><td>data field within the structure </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>offset </dd></dl>
</div>
</div>
<a class="anchor" id="gae90215615972dfa4108018304361ef0b"></a><!-- doxytag: member="apr_general.h::APR_STRINGIFY" ref="gae90215615972dfa4108018304361ef0b" args="(n)" -->
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<div class="memproto">
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<td class="memname">#define APR_STRINGIFY</td>
<td>(</td>
<td class="paramtype">n </td>
<td class="paramname"></td>
<td> ) </td>
<td> APR_STRINGIFY_HELPER(n)</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>String and memory functions Properly quote a value as a string in the C preprocessor </p>
</div>
</div>
<a class="anchor" id="ga71918dd8c53e093283b43b0ff0965439"></a><!-- doxytag: member="apr_general.h::APR_STRINGIFY_HELPER" ref="ga71918dd8c53e093283b43b0ff0965439" args="(n)" -->
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<td class="memname">#define APR_STRINGIFY_HELPER</td>
<td>(</td>
<td class="paramtype">n </td>
<td class="paramname"></td>
<td> ) </td>
<td> #n</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Helper macro for APR_STRINGIFY </p>
</div>
</div>
<a class="anchor" id="gaa93f0eb578d23995850d61f7d61c55c1"></a><!-- doxytag: member="apr_general.h::FALSE" ref="gaa93f0eb578d23995850d61f7d61c55c1" args="" -->
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<td class="memname">#define FALSE 0</td>
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</div>
<div class="memdoc">
<p>FALSE </p>
</div>
</div>
<a class="anchor" id="gaa8cecfc5c5c054d2875c03e77b7be15d"></a><!-- doxytag: member="apr_general.h::TRUE" ref="gaa8cecfc5c5c054d2875c03e77b7be15d" args="" -->
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<td class="memname">#define TRUE (!FALSE)</td>
</tr>
</table>
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<div class="memdoc">
<p>TRUE </p>
</div>
</div>
<hr/><h2>Typedef Documentation</h2>
<a class="anchor" id="gafe9e657d61b61d62ecba34299a82a7ea"></a><!-- doxytag: member="apr_general.h::apr_signum_t" ref="gafe9e657d61b61d62ecba34299a82a7ea" args="" -->
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<td class="memname">typedef int <a class="el" href="group__apr__general.html#gafe9e657d61b61d62ecba34299a82a7ea">apr_signum_t</a></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>signal numbers typedef </p>
</div>
</div>
</div>
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