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<div class="title">SuperFastHash.cpp File Reference</div> </div>
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<div class="textblock"><code>#include &quot;<a class="el" href="../../df/d8e/_super_fast_hash_8h_source.xhtml">slikenet/SuperFastHash.h</a>&quot;</code><br/>
<code>#include &quot;<a class="el" href="../../df/df2/_native_types_8h_source.xhtml">slikenet/NativeTypes.h</a>&quot;</code><br/>
<code>#include &lt;stdlib.h&gt;</code><br/>
<code>#include &lt;stdint.h&gt;</code><br/>
<code>#include &quot;<a class="el" href="../../d7/db2/linux__adapter_8h_source.xhtml">slikenet/linux_adapter.h</a>&quot;</code><br/>
<code>#include &quot;<a class="el" href="../../da/dff/osx__adapter_8h_source.xhtml">slikenet/osx_adapter.h</a>&quot;</code><br/>
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<p><a href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml">Go to the source code of this file.</a></p>
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<tr class="memitem:abc7d71657be8975a51684e41029b7964"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#abc7d71657be8975a51684e41029b7964">get16bits</a>(d)</td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ae1d6670c44d102bfe359bed5b529bdf6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ae1d6670c44d102bfe359bed5b529bdf6">SuperFastHash</a> (const char *data, int length)</td></tr>
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<tr class="memitem:aa6ecdaa0cb791a159e46b91ad659f8ce"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#aa6ecdaa0cb791a159e46b91ad659f8ce">SuperFastHashIncremental</a> (const char *data, int len, unsigned int lastHash)</td></tr>
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<tr class="memitem:ab14f69dd56f375f68534678404453ce3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ab14f69dd56f375f68534678404453ce3">SuperFastHashFile</a> (const char *filename)</td></tr>
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<tr class="memitem:ab806f0deca2ad62cdb41d01e4ed53e71"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ab806f0deca2ad62cdb41d01e4ed53e71">SuperFastHashFilePtr</a> (FILE *fp)</td></tr>
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Variables</h2></td></tr>
<tr class="memitem:ac70c5dcfc7acdeffc17a2509f8ebe3f3"><td class="memItemLeft" align="right" valign="top">static const int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ac70c5dcfc7acdeffc17a2509f8ebe3f3">INCREMENTAL_READ_BLOCK</a> =65536</td></tr>
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<h2 class="groupheader">Macro Definition Documentation</h2>
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<td class="memname">#define get16bits</td>
<td>(</td>
<td class="paramtype">&#160;</td>
<td class="paramname">d</td><td>)</td>
<td></td>
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<b>Value:</b><div class="fragment"><div class="line">((((<a class="code" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a>)(((<span class="keyword">const</span> <a class="code" href="../../df/df2/_native_types_8h.xhtml#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *)(d))[1])) &lt;&lt; 8)\</div>
<div class="line"> +(<a class="code" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a>)(((<span class="keyword">const</span> <a class="code" href="../../df/df2/_native_types_8h.xhtml#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *)(d))[0]) )</div>
</div><!-- fragment -->
<p>Definition at line <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00032">32</a> of file <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml">SuperFastHash.cpp</a>.</p>
<p>Referenced by <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00058">SuperFastHashIncremental()</a>.</p>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname"><a class="el" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a> SuperFastHash </td>
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<tr>
<td class="paramkey"></td>
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<td class="paramtype">int&#160;</td>
<td class="paramname"><em>length</em>&#160;</td>
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<p>Definition at line <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00038">38</a> of file <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml">SuperFastHash.cpp</a>.</p>
<p>References <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00036">INCREMENTAL_READ_BLOCK</a>, and <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00058">SuperFastHashIncremental()</a>.</p>
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<td class="memname"><a class="el" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a> SuperFastHashFile </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>filename</em></td><td>)</td>
<td></td>
</tr>
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</div><div class="memdoc">
<p>Definition at line <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00106">106</a> of file <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml">SuperFastHash.cpp</a>.</p>
<p>References <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00116">SuperFastHashFilePtr()</a>.</p>
</div>
</div>
<a class="anchor" id="ab806f0deca2ad62cdb41d01e4ed53e71"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a> SuperFastHashFilePtr </td>
<td>(</td>
<td class="paramtype">FILE *&#160;</td>
<td class="paramname"><em>fp</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Definition at line <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00116">116</a> of file <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml">SuperFastHash.cpp</a>.</p>
<p>References <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00036">INCREMENTAL_READ_BLOCK</a>, and <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00058">SuperFastHashIncremental()</a>.</p>
<p>Referenced by <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00106">SuperFastHashFile()</a>.</p>
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</div>
<a class="anchor" id="aa6ecdaa0cb791a159e46b91ad659f8ce"></a>
<div class="memitem">
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<td class="memname"><a class="el" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a> SuperFastHashIncremental </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>data</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>len</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int&#160;</td>
<td class="paramname"><em>lastHash</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Definition at line <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00058">58</a> of file <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml">SuperFastHash.cpp</a>.</p>
<p>References <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00032">get16bits</a>.</p>
<p>Referenced by <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00038">SuperFastHash()</a>, <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00116">SuperFastHashFilePtr()</a>, and <a class="el" href="../../d3/d93/_rak_net_types_8cpp_source.xhtml#l00212">SLNet::SystemAddress::ToInteger()</a>.</p>
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<td class="memname">const int INCREMENTAL_READ_BLOCK =65536</td>
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<p>Definition at line <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00036">36</a> of file <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml">SuperFastHash.cpp</a>.</p>
<p>Referenced by <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00038">SuperFastHash()</a>, and <a class="el" href="../../d4/dcf/_super_fast_hash_8cpp_source.xhtml#l00116">SuperFastHashFilePtr()</a>.</p>
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<div class="title">SuperFastHash.cpp</div> </div>
</div><!--header-->
<div class="contents">
<a href="../../d4/dcf/_super_fast_hash_8cpp.xhtml">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> * Original work: Copyright (c) 2014, Oculus VR, Inc.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> * This source code is licensed under the BSD-style license found in the</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * RakNet License.txt file in the licenses directory of this source tree. An additional grant </span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * of patent rights can be found in the RakNet Patents.txt file in the same directory.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> * Modified work: Copyright (c) 2016-2017, SLikeSoft UG (haftungsbeschränkt)</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> * This source code was modified by SLikeSoft. Modifications are licensed under the MIT-style</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> * license found in the license.txt file in the root directory of this source tree.</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="../../df/d8e/_super_fast_hash_8h.xhtml">slikenet/SuperFastHash.h</a>&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="../../df/df2/_native_types_8h.xhtml">slikenet/NativeTypes.h</a>&quot;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#if !defined(_WIN32)</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#include &lt;stdint.h&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#include &quot;<a class="code" href="../../d7/db2/linux__adapter_8h.xhtml">slikenet/linux_adapter.h</a>&quot;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="../../da/dff/osx__adapter_8h.xhtml">slikenet/osx_adapter.h</a>&quot;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#undef get16bits</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#if (defined(__GNUC__) &amp;&amp; defined(__i386__)) || defined(__WATCOMC__) \</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="preprocessor"> || defined(_MSC_VER) || defined (__BORLANDC__) || defined (__TURBOC__)</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define get16bits(d) (*((const uint16_t *) (d)))</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"><a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#abc7d71657be8975a51684e41029b7964"> 32</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define get16bits(d) ((((uint32_t)(((const uint8_t *)(d))[1])) &lt;&lt; 8)\</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="preprocessor"> +(uint32_t)(((const uint8_t *)(d))[0]) )</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ac70c5dcfc7acdeffc17a2509f8ebe3f3"> 36</a></span>&#160;<span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ac70c5dcfc7acdeffc17a2509f8ebe3f3">INCREMENTAL_READ_BLOCK</a>=65536;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;</div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="code" href="../../df/d8e/_super_fast_hash_8h.xhtml#ae1d6670c44d102bfe359bed5b529bdf6"> 38</a></span>&#160;<a class="code" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a> <a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ae1d6670c44d102bfe359bed5b529bdf6">SuperFastHash</a> (<span class="keyword">const</span> <span class="keywordtype">char</span> * data, <span class="keywordtype">int</span> length)</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;{</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="comment">// All this is necessary or the hash does not match SuperFastHashIncremental</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keywordtype">int</span> bytesRemaining=length;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lastHash = length;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="keywordtype">int</span> offset=0;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keywordflow">while</span> (bytesRemaining&gt;=<a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ac70c5dcfc7acdeffc17a2509f8ebe3f3">INCREMENTAL_READ_BLOCK</a>)</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; {</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; lastHash=<a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#aa6ecdaa0cb791a159e46b91ad659f8ce">SuperFastHashIncremental</a> (data+offset, <a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ac70c5dcfc7acdeffc17a2509f8ebe3f3">INCREMENTAL_READ_BLOCK</a>, lastHash );</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; bytesRemaining-=<a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ac70c5dcfc7acdeffc17a2509f8ebe3f3">INCREMENTAL_READ_BLOCK</a>;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; offset+=<a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ac70c5dcfc7acdeffc17a2509f8ebe3f3">INCREMENTAL_READ_BLOCK</a>;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; }</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keywordflow">if</span> (bytesRemaining&gt;0)</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; {</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; lastHash=<a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#aa6ecdaa0cb791a159e46b91ad659f8ce">SuperFastHashIncremental</a> (data+offset, bytesRemaining, lastHash );</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; }</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keywordflow">return</span> lastHash;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;<span class="comment">// return SuperFastHashIncremental(data,len,len);</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;}</div>
<div class="line"><a name="l00058"></a><span class="lineno"><a class="code" href="../../df/d8e/_super_fast_hash_8h.xhtml#aa6ecdaa0cb791a159e46b91ad659f8ce"> 58</a></span>&#160;<a class="code" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a> <a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#aa6ecdaa0cb791a159e46b91ad659f8ce">SuperFastHashIncremental</a> (<span class="keyword">const</span> <span class="keywordtype">char</span> * data, <span class="keywordtype">int</span> len, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lastHash )</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;{</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <a class="code" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a> hash = (<a class="code" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a>) lastHash;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <a class="code" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a> tmp;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="keywordtype">int</span> rem;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="keywordflow">if</span> (len &lt;= 0 || data == NULL) <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; rem = len &amp; 3;</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; len &gt;&gt;= 2;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="comment">/* Main loop */</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keywordflow">for</span> (;len &gt; 0; len--) {</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; hash += <a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#abc7d71657be8975a51684e41029b7964">get16bits</a> (data);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; tmp = (<a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#abc7d71657be8975a51684e41029b7964">get16bits</a> (data+2) &lt;&lt; 11) ^ hash;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; hash = (hash &lt;&lt; 16) ^ tmp;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; data += 2*<span class="keyword">sizeof</span> (<a class="code" href="../../df/df2/_native_types_8h.xhtml#a273cf69d639a59973b6019625df33e30">uint16_t</a>);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; hash += hash &gt;&gt; 11;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; }</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="comment">/* Handle end cases */</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keywordflow">switch</span> (rem) {</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keywordflow">case</span> 3: hash += <a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#abc7d71657be8975a51684e41029b7964">get16bits</a> (data);</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; hash ^= hash &lt;&lt; 16;</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; hash ^= data[<span class="keyword">sizeof</span> (<a class="code" href="../../df/df2/_native_types_8h.xhtml#a273cf69d639a59973b6019625df33e30">uint16_t</a>)] &lt;&lt; 18;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; hash += hash &gt;&gt; 11;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="keywordflow">case</span> 2: hash += <a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#abc7d71657be8975a51684e41029b7964">get16bits</a> (data);</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; hash ^= hash &lt;&lt; 11;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; hash += hash &gt;&gt; 17;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="keywordflow">case</span> 1: hash += *data;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; hash ^= hash &lt;&lt; 10;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; hash += hash &gt;&gt; 1;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="comment">/* Force &quot;avalanching&quot; of final 127 bits */</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; hash ^= hash &lt;&lt; 3;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; hash += hash &gt;&gt; 5;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; hash ^= hash &lt;&lt; 4;</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; hash += hash &gt;&gt; 17;</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; hash ^= hash &lt;&lt; 25;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; hash += hash &gt;&gt; 6;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="keywordflow">return</span> (<a class="code" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a>) hash;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;}</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;</div>
<div class="line"><a name="l00106"></a><span class="lineno"><a class="code" href="../../df/d8e/_super_fast_hash_8h.xhtml#ab14f69dd56f375f68534678404453ce3"> 106</a></span>&#160;<a class="code" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a> <a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ab14f69dd56f375f68534678404453ce3">SuperFastHashFile</a> (<span class="keyword">const</span> <span class="keywordtype">char</span> * filename)</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;{</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; FILE *fp;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keywordflow">if</span> (fopen_s(&amp;fp, filename, <span class="stringliteral">&quot;rb&quot;</span>)!=0)</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <a class="code" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a> hash = <a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ab806f0deca2ad62cdb41d01e4ed53e71">SuperFastHashFilePtr</a>(fp);</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; fclose(fp);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keywordflow">return</span> hash;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;}</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;</div>
<div class="line"><a name="l00116"></a><span class="lineno"><a class="code" href="../../df/d8e/_super_fast_hash_8h.xhtml#ab806f0deca2ad62cdb41d01e4ed53e71"> 116</a></span>&#160;<a class="code" href="../../df/df2/_native_types_8h.xhtml#a6eb1e68cc391dd753bc8ce896dbb8315">uint32_t</a> <a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ab806f0deca2ad62cdb41d01e4ed53e71">SuperFastHashFilePtr</a> (FILE *fp)</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;{</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; fseek(fp, 0, SEEK_END);</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <span class="keywordtype">int</span> length = ftell(fp);</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; fseek(fp, 0, SEEK_SET);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keywordtype">int</span> bytesRemaining=length;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lastHash = length;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <span class="keywordtype">char</span> readBlock[<a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#ac70c5dcfc7acdeffc17a2509f8ebe3f3">INCREMENTAL_READ_BLOCK</a>];</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <span class="keywordflow">while</span> (bytesRemaining&gt;=(<span class="keywordtype">int</span>) <span class="keyword">sizeof</span>(readBlock))</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; {</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; fread(readBlock, <span class="keyword">sizeof</span>(readBlock), 1, fp);</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; lastHash=<a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#aa6ecdaa0cb791a159e46b91ad659f8ce">SuperFastHashIncremental</a> (readBlock, (<span class="keywordtype">int</span>) <span class="keyword">sizeof</span>(readBlock), lastHash );</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; bytesRemaining-=(int) <span class="keyword">sizeof</span>(readBlock);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; }</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="keywordflow">if</span> (bytesRemaining&gt;0)</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; {</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; fread(readBlock, bytesRemaining, 1, fp);</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; lastHash=<a class="code" href="../../d4/dcf/_super_fast_hash_8cpp.xhtml#aa6ecdaa0cb791a159e46b91ad659f8ce">SuperFastHashIncremental</a> (readBlock, bytesRemaining, lastHash );</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; }</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="keywordflow">return</span> lastHash;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;}</div>
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