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<li class="navelem"><a class="el" href="dir_3a581ba30d25676e4b797b1f96d53b45.html">F:</a></li><li class="navelem"><a class="el" href="dir_9e5fe034a00e89334fd5186c3e7db156.html">G-Truc</a></li><li class="navelem"><a class="el" href="dir_d9496f0844b48bc7e53b5af8c99b9ab2.html">Source</a></li><li class="navelem"><a class="el" href="dir_a8bee7be44182a33f3820393ae0b105d.html">G-Truc</a></li><li class="navelem"><a class="el" href="dir_44e5e654415abd9ca6fdeaddaff8565e.html">glm</a></li><li class="navelem"><a class="el" href="dir_cef2d71d502cb69a9252bca2297d9549.html">glm</a></li><li class="navelem"><a class="el" href="dir_033f5edb0915b828d2c46ed4804e5503.html">detail</a></li> </ul>
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<div class="title">compute_common.hpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#pragma once</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor">#include "setup.hpp"</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include <limits></span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> </div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="keyword">namespace </span><a class="code" href="a00236.html">glm</a>{</div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="keyword">namespace </span>detail</div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> {</div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>  <span class="keyword">template</span><<span class="keyword">typename</span> genFIType, <span class="keywordtype">bool</span> <span class="comment">/*signed*/</span>></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>  <span class="keyword">struct </span>compute_abs</div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>  {};</div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  <span class="keyword">template</span><<span class="keyword">typename</span> genFIType></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  <span class="keyword">struct </span>compute_abs<genFIType, true></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  {</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  GLM_FUNC_QUALIFIER GLM_CONSTEXPR <span class="keyword">static</span> genFIType call(genFIType x)</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  {</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  GLM_STATIC_ASSERT(</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  std::numeric_limits<genFIType>::is_iec559 || std::numeric_limits<genFIType>::is_signed,</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="stringliteral">"'abs' only accept floating-point and integer scalar or vector inputs"</span>);</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="keywordflow">return</span> x >= genFIType(0) ? x : -x;</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="comment">// TODO, perf comp with: *(((int *) &x) + 1) &= 0x7fffffff;</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  }</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  };</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#if GLM_COMPILER & GLM_COMPILER_CUDA</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">template</span><></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">struct </span>compute_abs<float, true></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  {</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  GLM_FUNC_QUALIFIER GLM_CONSTEXPR <span class="keyword">static</span> <span class="keywordtype">float</span> call(<span class="keywordtype">float</span> x)</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  {</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">return</span> fabsf(x);</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  }</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  };</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">template</span><<span class="keyword">typename</span> genFIType></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">struct </span>compute_abs<genFIType, false></div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  {</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  GLM_FUNC_QUALIFIER GLM_CONSTEXPR <span class="keyword">static</span> genFIType call(genFIType x)</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  {</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  GLM_STATIC_ASSERT(</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  (!std::numeric_limits<genFIType>::is_signed && std::numeric_limits<genFIType>::is_integer),</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="stringliteral">"'abs' only accept floating-point and integer scalar or vector inputs"</span>);</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">return</span> x;</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  }</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  };</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> }<span class="comment">//namespace detail</span></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }<span class="comment">//namespace glm</span></div>
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<div class="ttc" id="a00236_html"><div class="ttname"><a href="a00236.html">glm</a></div><div class="ttdef"><b>Definition:</b> <a href="a00015_source.html#l00020">common.hpp:20</a></div></div>
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