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<a name="crc.reference"></a>Reference</h2></div></div></div>
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<div class="toc"><dl class="toc"><dt><span class="section"><a href="reference.html#header.boost.crc_hpp">Header <boost/crc.hpp></a></span></dt></dl></div>
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<div class="titlepage"><div><div><h3 class="title">
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<a name="header.boost.crc_hpp"></a>Header <<a href="../../../boost/crc.hpp" target="_top">boost/crc.hpp</a>></h3></div></div></div>
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<p>A collection of function templates and class templates that compute various forms of Cyclic Redundancy Codes (CRCs). </p>
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<p>Daryle Walker</p>
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<p>
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</p>
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<p>1.5</p>
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<p>Boost Software License, version 1.0</p>
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<p>
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Contains the declarations (and definitions) of various kinds of CRC computation functions, function object types, and encapsulated policy types.</p>
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<th align="left">Warning</th>
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<tr><td align="left" valign="top"><p>The sample CRC-computer types were just checked against the <a href="http://regregex.bbcmicro.net/crc-catalogue.htm" target="_top">Catalogue of parametrised CRC algorithms</a>. New type aliases were added where I got a standard wrong. However, the mistaken <code class="computeroutput">typedef</code>s are still there for backwards compatibility. </p></td></tr>
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<tr><td align="left" valign="top"><p>There are references to the <span class="emphasis"><em>Rocksoft<span class="trademark"></span>™ Model CRC Algorithm</em></span>, as described within "A Painless Guide to CRC Error Detection Algorithms," linked from "<a href="http://www.ross.net/crc/crcpaper.html" target="_top">CRC: A Paper On CRCs</a>" by Ross Williams. It will be abbreviated "RMCA" in other documentation blocks. </p></td></tr>
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<p>
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</p>
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<pre class="synopsis">
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<a class="link" href="../BOOST_CRC_PARM_TYPE.html" title="Macro BOOST_CRC_PARM_TYPE">BOOST_CRC_PARM_TYPE</a>
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<a class="link" href="../BOOST_CRC_OPTIMAL_NAME.html" title="Macro BOOST_CRC_OPTIMAL_NAME">BOOST_CRC_OPTIMAL_NAME</a></pre>
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<pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
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<span class="keyword">template</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> Bits<span class="special">></span> <span class="keyword">class</span> <a class="link" href="../boost/crc_basic.html" title="Class template crc_basic">crc_basic</a><span class="special">;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> Bits<span class="special">,</span> <span class="keyword">typename</span> <span class="special">::</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">uint_t</span><span class="special"><</span> <span class="identifier">Bits</span> <span class="special">></span><span class="special">::</span><span class="identifier">fast</span> TruncPoly<span class="special">,</span>
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<span class="keyword">typename</span> <span class="special">::</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">uint_t</span><span class="special"><</span> <span class="identifier">Bits</span> <span class="special">></span><span class="special">::</span><span class="identifier">fast</span> InitRem<span class="special">,</span>
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<span class="keyword">typename</span> <span class="special">::</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">uint_t</span><span class="special"><</span> <span class="identifier">Bits</span> <span class="special">></span><span class="special">::</span><span class="identifier">fast</span> FinalXor<span class="special">,</span> <span class="keyword">bool</span> ReflectIn<span class="special">,</span>
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<span class="keyword">bool</span> ReflectRem<span class="special">></span>
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<span class="keyword">class</span> <a class="link" href="../boost/crc_optimal.html" title="Class template crc_optimal">crc_optimal</a><span class="special">;</span>
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<span class="keyword">typedef</span> <a class="link" href="../boost/crc_optimal.html" title="Class template crc_optimal">crc_optimal</a><span class="special"><</span> <span class="number">16</span><span class="special">,</span> <span class="number">0x8005</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="keyword">true</span><span class="special">,</span> <span class="keyword">true</span> <span class="special">></span> <a name="boost.crc_16_type"></a><span class="identifier">crc_16_type</span><span class="special">;</span> <span class="comment">// Computation type for ARC|CRC-16|CRC-IBM|CRC-16/ARC|CRC-16/LHA standard. </span>
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<span class="keyword">typedef</span> <a class="link" href="../boost/crc_optimal.html" title="Class template crc_optimal">crc_optimal</a><span class="special"><</span> <span class="number">16</span><span class="special">,</span> <span class="number">0x1021</span><span class="special">,</span> <span class="number">0xFFFF</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="keyword">false</span><span class="special">,</span> <span class="keyword">false</span> <span class="special">></span> <a name="boost.crc_ccitt_false_t"></a><span class="identifier">crc_ccitt_false_t</span><span class="special">;</span> <span class="comment">// Computation type for CRC-16/CCITT-FALSE standard. </span>
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<span class="keyword">typedef</span> <span class="identifier">crc_ccitt_false_t</span> <a name="boost.crc_ccitt_type"></a><span class="identifier">crc_ccitt_type</span><span class="special">;</span> <span class="comment">// Computation type for the CRC mistakenly called the CCITT standard. </span>
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<span class="keyword">typedef</span> <a class="link" href="../boost/crc_optimal.html" title="Class template crc_optimal">crc_optimal</a><span class="special"><</span> <span class="number">16</span><span class="special">,</span> <span class="number">0x1021</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="keyword">true</span><span class="special">,</span> <span class="keyword">true</span> <span class="special">></span> <a class="link" href="../boost/crc_ccitt_true_t.html" title="Type definition crc_ccitt_true_t"><span class="identifier">crc_ccitt_true_t</span></a><span class="special">;</span>
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<span class="keyword">typedef</span> <a class="link" href="../boost/crc_optimal.html" title="Class template crc_optimal">crc_optimal</a><span class="special"><</span> <span class="number">16</span><span class="special">,</span> <span class="number">0x8408</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="keyword">true</span><span class="special">,</span> <span class="keyword">true</span> <span class="special">></span> <a class="link" href="../boost/crc_xmodem_type.html" title="Type definition crc_xmodem_type"><span class="identifier">crc_xmodem_type</span></a><span class="special">;</span>
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<span class="keyword">typedef</span> <a class="link" href="../boost/crc_optimal.html" title="Class template crc_optimal">crc_optimal</a><span class="special"><</span> <span class="number">16</span><span class="special">,</span> <span class="number">0x1021</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="keyword">false</span><span class="special">,</span> <span class="keyword">false</span> <span class="special">></span> <a name="boost.crc_xmodem_t"></a><span class="identifier">crc_xmodem_t</span><span class="special">;</span> <span class="comment">// Computation type for the actual XMODEM|ZMODEM|CRC-16/ACORN standard. </span>
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<span class="keyword">typedef</span> <a class="link" href="../boost/crc_optimal.html" title="Class template crc_optimal">crc_optimal</a><span class="special"><</span> <span class="number">32</span><span class="special">,</span> <span class="number">0x04C11DB7</span><span class="special">,</span> <span class="number">0xFFFFFFFF</span><span class="special">,</span> <span class="number">0xFFFFFFFF</span><span class="special">,</span> <span class="keyword">true</span><span class="special">,</span> <span class="keyword">true</span> <span class="special">></span> <a name="boost.crc_32_type"></a><span class="identifier">crc_32_type</span><span class="special">;</span> <span class="comment">// Computation type for CRC-32|CRC-32/ADCCP|PKZIP standard. </span>
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<span class="keyword">template</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> Bits<span class="special">,</span> <span class="keyword">typename</span> <span class="special">::</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">uint_t</span><span class="special"><</span> <span class="identifier">Bits</span> <span class="special">></span><span class="special">::</span><span class="identifier">fast</span> TruncPoly<span class="special">,</span>
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<span class="keyword">typename</span> <span class="special">::</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">uint_t</span><span class="special"><</span> <span class="identifier">Bits</span> <span class="special">></span><span class="special">::</span><span class="identifier">fast</span> InitRem<span class="special">,</span>
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<span class="keyword">typename</span> <span class="special">::</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">uint_t</span><span class="special"><</span> <span class="identifier">Bits</span> <span class="special">></span><span class="special">::</span><span class="identifier">fast</span> FinalXor<span class="special">,</span> <span class="keyword">bool</span> ReflectIn<span class="special">,</span>
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<span class="keyword">bool</span> ReflectRem<span class="special">></span>
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<span class="identifier">uint_t</span><span class="special"><</span> <span class="identifier">Bits</span> <span class="special">></span><span class="special">::</span><span class="identifier">fast</span> <a class="link" href="../boost/crc.html" title="Function template crc"><span class="identifier">crc</span></a><span class="special">(</span><span class="keyword">void</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> Bits<span class="special">,</span> <span class="keyword">typename</span> <span class="special">::</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">uint_t</span><span class="special"><</span> <span class="identifier">Bits</span> <span class="special">></span><span class="special">::</span><span class="identifier">fast</span> TruncPoly<span class="special">></span>
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<span class="identifier">uint_t</span><span class="special"><</span> <span class="identifier">Bits</span> <span class="special">></span><span class="special">::</span><span class="identifier">fast</span>
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<a class="link" href="../boost/augmented_crc.html" title="Function template augmented_crc"><span class="identifier">augmented_crc</span></a><span class="special">(</span><span class="keyword">void</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">,</span>
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<span class="keyword">typename</span> <span class="identifier">uint_t</span><span class="special"><</span> <span class="identifier">Bits</span> <span class="special">></span><span class="special">::</span><span class="identifier">fast</span> <span class="special">=</span> <span class="number">0u</span><span class="special">)</span><span class="special">;</span>
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<span class="special">}</span></pre>
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<td align="right"><div class="copyright-footer">Copyright © 2001, 2003, 2012 Daryle Walker<p>
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Distributed under the Boost Software License, Version 1.0. (See the accompanying
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file LICENSE_1_0.txt or a copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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