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<div id="projectname">libcbor
 <span id="projectnumber">0.5.0</span>
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<div id="projectbrief">libcbor is a C library for parsing and generating CBOR, the general-purpose schema-less binary data format.</div>
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<div class="title">memory_utils.c File Reference</div> </div>
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<div class="textblock"><code>#include "<a class="el" href="memory__utils_8h_source.html">memory_utils.h</a>"</code><br />
<code>#include "<a class="el" href="common_8h_source.html">cbor/common.h</a>"</code><br />
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<p><a href="memory__utils_8c_source.html">Go to the source code of this file.</a></p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ab45e9067ef782bb27cf846dc94eb4669"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="memory__utils_8c.html#ab45e9067ef782bb27cf846dc94eb4669">_cbor_highest_bit</a> (size_t number)</td></tr>
<tr class="memdesc:ab45e9067ef782bb27cf846dc94eb4669"><td class="mdescLeft"> </td><td class="mdescRight">Highest on bit position. <a href="#ab45e9067ef782bb27cf846dc94eb4669">More...</a><br /></td></tr>
<tr class="separator:ab45e9067ef782bb27cf846dc94eb4669"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abdee08be3f4cff35a94279fda66c4778"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="memory__utils_8c.html#abdee08be3f4cff35a94279fda66c4778">_cbor_safe_to_multiply</a> (size_t a, size_t b)</td></tr>
<tr class="memdesc:abdee08be3f4cff35a94279fda66c4778"><td class="mdescLeft"> </td><td class="mdescRight">Can a and b be multiplied without overflowing size_t? <a href="#abdee08be3f4cff35a94279fda66c4778">More...</a><br /></td></tr>
<tr class="separator:abdee08be3f4cff35a94279fda66c4778"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7bfbe0ac179b30f38bfeb9fe432ad4ec"><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="memory__utils_8c.html#a7bfbe0ac179b30f38bfeb9fe432ad4ec">_cbor_alloc_multiple</a> (size_t item_size, size_t item_count)</td></tr>
<tr class="memdesc:a7bfbe0ac179b30f38bfeb9fe432ad4ec"><td class="mdescLeft"> </td><td class="mdescRight">Overflow-proof contiguous array allocation. <a href="#a7bfbe0ac179b30f38bfeb9fe432ad4ec">More...</a><br /></td></tr>
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<tr class="memitem:afd7a22ccd3b44d6ff668e14c3a006e40"><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="memory__utils_8c.html#afd7a22ccd3b44d6ff668e14c3a006e40">_cbor_realloc_multiple</a> (void *pointer, size_t item_size, size_t item_count)</td></tr>
<tr class="memdesc:afd7a22ccd3b44d6ff668e14c3a006e40"><td class="mdescLeft"> </td><td class="mdescRight">Overflow-proof contiguous array reallocation. <a href="#afd7a22ccd3b44d6ff668e14c3a006e40">More...</a><br /></td></tr>
<tr class="separator:afd7a22ccd3b44d6ff668e14c3a006e40"><td class="memSeparator" colspan="2"> </td></tr>
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<h2 class="groupheader">Function Documentation</h2>
<a id="a7bfbe0ac179b30f38bfeb9fe432ad4ec"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7bfbe0ac179b30f38bfeb9fe432ad4ec">§ </a></span>_cbor_alloc_multiple()</h2>
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<td class="memname">void* _cbor_alloc_multiple </td>
<td>(</td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>item_size</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">size_t </td>
<td class="paramname"><em>item_count</em> </td>
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<p>Overflow-proof contiguous array allocation. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">item_size</td><td></td></tr>
<tr><td class="paramname">item_count</td><td></td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Region of item_size * item_count bytes, or NULL if the total size overflows size_t or the underlying allocator failed </dd></dl>
<p>Definition at line <a class="el" href="memory__utils_8c_source.html#l00030">30</a> of file <a class="el" href="memory__utils_8c_source.html">memory_utils.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ab45e9067ef782bb27cf846dc94eb4669">§ </a></span>_cbor_highest_bit()</h2>
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<td class="memname">size_t _cbor_highest_bit </td>
<td>(</td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>number</em></td><td>)</td>
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<p>Highest on bit position. </p>
<p>Definition at line <a class="el" href="memory__utils_8c_source.html#l00014">14</a> of file <a class="el" href="memory__utils_8c_source.html">memory_utils.c</a>.</p>
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<a id="afd7a22ccd3b44d6ff668e14c3a006e40"></a>
<h2 class="memtitle"><span class="permalink"><a href="#afd7a22ccd3b44d6ff668e14c3a006e40">§ </a></span>_cbor_realloc_multiple()</h2>
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<td class="memname">void* _cbor_realloc_multiple </td>
<td>(</td>
<td class="paramtype">void * </td>
<td class="paramname"><em>pointer</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">size_t </td>
<td class="paramname"><em>item_size</em>, </td>
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<td class="paramtype">size_t </td>
<td class="paramname"><em>item_count</em> </td>
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<p>Overflow-proof contiguous array reallocation. </p>
<p>This implements the OpenBSD <code>reallocarray</code> functionality.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pointer</td><td></td></tr>
<tr><td class="paramname">item_size</td><td></td></tr>
<tr><td class="paramname">item_count</td><td></td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Realloc'd of item_size * item_count bytes, or NULL if the total size overflows size_t or the underlying allocator failed </dd></dl>
<p>Definition at line <a class="el" href="memory__utils_8c_source.html#l00039">39</a> of file <a class="el" href="memory__utils_8c_source.html">memory_utils.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#abdee08be3f4cff35a94279fda66c4778">§ </a></span>_cbor_safe_to_multiply()</h2>
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<td class="memname">bool _cbor_safe_to_multiply </td>
<td>(</td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>a</em>, </td>
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<td class="paramtype">size_t </td>
<td class="paramname"><em>b</em> </td>
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<td>)</td>
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<p>Can a and b be multiplied without overflowing size_t? </p>
<p>Definition at line <a class="el" href="memory__utils_8c_source.html#l00025">25</a> of file <a class="el" href="memory__utils_8c_source.html">memory_utils.c</a>.</p>
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