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<li class="navelem"><a class="el" href="dir_bdd9a5d540de89e9fe90efdfc6973a4f.html">common</a></li><li class="navelem"><a class="el" href="dir_11fbc4217d50ab21044e5ad6614aede5.html">include</a></li> </ul>
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<div class="title">MurmurHash3.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Minimally modified from Austin Applebee&#39;s code:</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// * Removed MurmurHash3_x86_32 and MurmurHash3_x86_128</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// * Changed input seed in MurmurHash3_x64_128 to uint64_t</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// * Define and use HashState reference to return result</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// * Made entire hash function defined inline</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment">// * Added compute_seed_hash</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment">// MurmurHash3 was written by Austin Appleby, and is placed in the public</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment">// domain. The author hereby disclaims copyright to this source code.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160; </div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment">// Note - The x86 and x64 versions do _not_ produce the same results, as the</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment">// algorithms are optimized for their respective platforms. You can still</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment">// compile and run any of them on any platform, but your performance with the</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment">// non-native version will be less than optimal.</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">#ifndef _MURMURHASH3_H_</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#define _MURMURHASH3_H_</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160; </div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#include &lt;cstring&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160; </div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="comment">// Platform-specific functions and macros</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; </div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="comment">// Microsoft Visual Studio</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">#if defined(_MSC_VER)</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> uint8_t;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> uint32_t;</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> __int64 uint64_t;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="preprocessor">#define MURMUR3_FORCE_INLINE __forceinline</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; </div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; </div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="preprocessor">#define MURMUR3_ROTL64(x,y) _rotl64(x,y)</span></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"> 38</span>&#160;<span class="preprocessor">#define MURMUR3_BIG_CONSTANT(x) (x)</span></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">// Other compilers</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; </div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;<span class="preprocessor">#else </span><span class="comment">// defined(_MSC_VER)</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;<span class="preprocessor">#include &lt;stdint.h&gt;</span></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;<span class="preprocessor">#define MURMUR3_FORCE_INLINE inline __attribute__((always_inline))</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;<span class="keyword">inline</span> uint64_t rotl64 ( uint64_t x, int8_t r )</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">return</span> (x &lt;&lt; r) | (x &gt;&gt; (64 - r));</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; </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;<span class="preprocessor">#define MURMUR3_ROTL64(x,y) rotl64(x,y)</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; </div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;<span class="preprocessor">#define MURMUR3_BIG_CONSTANT(x) (x##LLU)</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;<span class="preprocessor">#endif </span><span class="comment">// !defined(_MSC_VER)</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;<span class="comment">// Return type - Using C++ reference for return type which should allow better</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;<span class="comment">// compiler optimization than a void* pointer</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span>{</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; uint64_t h1;</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; uint64_t h2;</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;} HashState;</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; </div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;<span class="comment">// Block read - if your platform needs to do endian-swapping or can only</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;<span class="comment">// handle aligned reads, do the conversion here</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; </div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;MURMUR3_FORCE_INLINE uint64_t getblock64 ( <span class="keyword">const</span> uint64_t * p, <span class="keywordtype">size_t</span> i )</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;{</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; uint64_t res;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; memcpy(&amp;res, p + i, <span class="keyword">sizeof</span>(res));</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;}</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; </div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;<span class="comment">// Finalization mix - force all bits of a hash block to avalanche</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;MURMUR3_FORCE_INLINE uint64_t fmix64 ( uint64_t k )</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;{</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; k ^= k &gt;&gt; 33;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; k *= MURMUR3_BIG_CONSTANT(0xff51afd7ed558ccd);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; k ^= k &gt;&gt; 33;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; k *= MURMUR3_BIG_CONSTANT(0xc4ceb9fe1a85ec53);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; k ^= k &gt;&gt; 33;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keywordflow">return</span> k;</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; </div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;MURMUR3_FORCE_INLINE <span class="keywordtype">void</span> MurmurHash3_x64_128(<span class="keyword">const</span> <span class="keywordtype">void</span>* key, <span class="keywordtype">size_t</span> lenBytes,</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; uint64_t seed, HashState&amp; out) {</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> uint64_t c1 = MURMUR3_BIG_CONSTANT(0x87c37b91114253d5);</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> uint64_t c2 = MURMUR3_BIG_CONSTANT(0x4cf5ad432745937f);</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keyword">const</span> uint8_t* data = (<span class="keyword">const</span> uint8_t*)key;</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; out.h1 = seed;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; out.h2 = seed;</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; <span class="comment">// Number of full 128-bit blocks of 16 bytes.</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="comment">// Possible exclusion of a remainder of up to 15 bytes.</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keyword">const</span> <span class="keywordtype">size_t</span> nblocks = lenBytes &gt;&gt; 4; <span class="comment">// bytes / 16 </span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; </div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="comment">// Process the 128-bit blocks (the body) into the hash</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keyword">const</span> uint64_t* blocks = (<span class="keyword">const</span> uint64_t*)(data);</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; nblocks; ++i) { <span class="comment">// 16 bytes per block</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; uint64_t k1 = getblock64(blocks, i * 2 + 0);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; uint64_t k2 = getblock64(blocks, i * 2 + 1);</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; k1 *= c1; k1 = MURMUR3_ROTL64(k1,31); k1 *= c2; out.h1 ^= k1;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; out.h1 = MURMUR3_ROTL64(out.h1,27);</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; out.h1 += out.h2;</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; out.h1 = out.h1*5+0x52dce729;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; k2 *= c2; k2 = MURMUR3_ROTL64(k2,33); k2 *= c1; out.h2 ^= k2;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; out.h2 = MURMUR3_ROTL64(out.h2,31);</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; out.h2 += out.h1;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; out.h2 = out.h2*5+0x38495ab5;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; }</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; <span class="comment">// tail</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="keyword">const</span> uint8_t * tail = (<span class="keyword">const</span> uint8_t*)(data + (nblocks &lt;&lt; 4));</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; </div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; uint64_t k1 = 0;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; uint64_t k2 = 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; <span class="keywordflow">switch</span>(lenBytes &amp; 15)</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; {</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <span class="keywordflow">case</span> 15: k2 ^= ((uint64_t)tail[14]) &lt;&lt; 48; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="keywordflow">case</span> 14: k2 ^= ((uint64_t)tail[13]) &lt;&lt; 40; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <span class="keywordflow">case</span> 13: k2 ^= ((uint64_t)tail[12]) &lt;&lt; 32; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keywordflow">case</span> 12: k2 ^= ((uint64_t)tail[11]) &lt;&lt; 24; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keywordflow">case</span> 11: k2 ^= ((uint64_t)tail[10]) &lt;&lt; 16; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <span class="keywordflow">case</span> 10: k2 ^= ((uint64_t)tail[ 9]) &lt;&lt; 8; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; <span class="keywordflow">case</span> 9: k2 ^= ((uint64_t)tail[ 8]) &lt;&lt; 0;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; k2 *= c2; k2 = MURMUR3_ROTL64(k2,33); k2 *= c1; out.h2 ^= k2;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordflow">case</span> 8: k1 ^= ((uint64_t)tail[ 7]) &lt;&lt; 56; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <span class="keywordflow">case</span> 7: k1 ^= ((uint64_t)tail[ 6]) &lt;&lt; 48; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <span class="keywordflow">case</span> 6: k1 ^= ((uint64_t)tail[ 5]) &lt;&lt; 40; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; <span class="keywordflow">case</span> 5: k1 ^= ((uint64_t)tail[ 4]) &lt;&lt; 32; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <span class="keywordflow">case</span> 4: k1 ^= ((uint64_t)tail[ 3]) &lt;&lt; 24; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="keywordflow">case</span> 3: k1 ^= ((uint64_t)tail[ 2]) &lt;&lt; 16; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="keywordflow">case</span> 2: k1 ^= ((uint64_t)tail[ 1]) &lt;&lt; 8; <span class="comment">// falls through</span></div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keywordflow">case</span> 1: k1 ^= ((uint64_t)tail[ 0]) &lt;&lt; 0;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; k1 *= c1; k1 = MURMUR3_ROTL64(k1,31); k1 *= c2; out.h1 ^= k1;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; };</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="comment">//----------</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="comment">// finalization</span></div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; </div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; out.h1 ^= lenBytes;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; out.h2 ^= lenBytes;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; out.h1 += out.h2;</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; out.h2 += out.h1;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; </div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; out.h1 = fmix64(out.h1);</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; out.h2 = fmix64(out.h2);</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; </div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; out.h1 += out.h2;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; out.h2 += out.h1;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160;}</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; </div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; </div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160;MURMUR3_FORCE_INLINE uint16_t compute_seed_hash(uint64_t seed) {</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; HashState hashes;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; MurmurHash3_x64_128(&amp;seed, <span class="keyword">sizeof</span>(seed), 0, hashes);</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>uint16_t<span class="keyword">&gt;</span>(hashes.h1 &amp; 0xffff);</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;}</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; </div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160;<span class="preprocessor">#undef MURMUR3_FORCE_INLINE</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160;<span class="preprocessor">#undef MURMUR3_ROTL64</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160;<span class="preprocessor">#undef MURMUR3_BIG_CONSTANT</span></div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; </div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160;<span class="preprocessor">#endif </span><span class="comment">// _MURMURHASH3_H_</span></div>
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