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<div class="title">fast_square_root.hpp</div>  </div>
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<a href="a00626.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160; </div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160; </div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">// Dependency:</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &quot;../common.hpp&quot;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &quot;../exponential.hpp&quot;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &quot;../geometric.hpp&quot;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160; </div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#ifndef GLM_ENABLE_EXPERIMENTAL</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#       error &quot;GLM: GLM_GTX_fast_square_root is an experimental extension and may change in the future. Use #define GLM_ENABLE_EXPERIMENTAL before including it, if you really want to use it.&quot;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#elif GLM_MESSAGES == GLM_ENABLE &amp;&amp; !defined(GLM_EXT_INCLUDED)</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#       pragma message(&quot;GLM: GLM_GTX_fast_square_root extension included&quot;)</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#endif</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">namespace </span>glm</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;{</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160; </div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">typename</span> genType&gt;</div>
<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="a00933.html#ga6c460e9414a50b2fc455c8f64c86cdc9">   37</a></span>&#160;        GLM_FUNC_DECL genType <a class="code" href="a00933.html#gae83f0c03614f73eae5478c5b6274ee6d">fastSqrt</a>(genType x);</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160; </div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;        <span class="keyword">template</span>&lt;length_t L, <span class="keyword">typename</span> T, qualifier Q&gt;</div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="a00933.html#gae83f0c03614f73eae5478c5b6274ee6d">   43</a></span>&#160;        GLM_FUNC_DECL vec&lt;L, T, Q&gt; <a class="code" href="a00933.html#gae83f0c03614f73eae5478c5b6274ee6d">fastSqrt</a>(vec&lt;L, T, Q&gt; <span class="keyword">const</span>&amp; x);</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160; </div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">typename</span> genType&gt;</div>
<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="a00933.html#ga7f081b14d9c7035c8714eba5f7f75a8f">   49</a></span>&#160;        GLM_FUNC_DECL genType <a class="code" href="a00933.html#gadcd7be12b1e5ee182141359d4c45dd24">fastInverseSqrt</a>(genType x);</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160; </div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;        <span class="keyword">template</span>&lt;length_t L, <span class="keyword">typename</span> T, qualifier Q&gt;</div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="a00933.html#gadcd7be12b1e5ee182141359d4c45dd24">   55</a></span>&#160;        GLM_FUNC_DECL vec&lt;L, T, Q&gt; <a class="code" href="a00933.html#gadcd7be12b1e5ee182141359d4c45dd24">fastInverseSqrt</a>(vec&lt;L, T, Q&gt; <span class="keyword">const</span>&amp; x);</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160; </div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">typename</span> genType&gt;</div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="a00933.html#gafe697d6287719538346bbdf8b1367c59">   61</a></span>&#160;        GLM_FUNC_DECL genType <a class="code" href="a00933.html#ga90f66be92ef61e705c005e7b3209edb8">fastLength</a>(genType x);</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160; </div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;        <span class="keyword">template</span>&lt;length_t L, <span class="keyword">typename</span> T, qualifier Q&gt;</div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="a00933.html#ga90f66be92ef61e705c005e7b3209edb8">   67</a></span>&#160;        GLM_FUNC_DECL T <a class="code" href="a00933.html#ga90f66be92ef61e705c005e7b3209edb8">fastLength</a>(vec&lt;L, T, Q&gt; <span class="keyword">const</span>&amp; x);</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160; </div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">typename</span> genType&gt;</div>
<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="a00933.html#gaac333418d0c4e0cc6d3d219ed606c238">   73</a></span>&#160;        GLM_FUNC_DECL genType <a class="code" href="a00933.html#ga42d3e771fa7cb3c60d828e315829df19">fastDistance</a>(genType x, genType y);</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160; </div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;        <span class="keyword">template</span>&lt;length_t L, <span class="keyword">typename</span> T, qualifier Q&gt;</div>
<div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="a00933.html#ga42d3e771fa7cb3c60d828e315829df19">   79</a></span>&#160;        GLM_FUNC_DECL T <a class="code" href="a00933.html#ga42d3e771fa7cb3c60d828e315829df19">fastDistance</a>(vec&lt;L, T, Q&gt; <span class="keyword">const</span>&amp; x, vec&lt;L, T, Q&gt; <span class="keyword">const</span>&amp; y);</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160; </div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">typename</span> genType&gt;</div>
<div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="a00933.html#gac0991240651a3f75792ff5de2e526b8c">   85</a></span>&#160;        GLM_FUNC_DECL genType <a class="code" href="a00933.html#gaab477221230a6e12a3b9e22e750c8928">fastNormalize</a>(genType x);</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160; </div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        <span class="keyword">template</span>&lt;length_t L, <span class="keyword">typename</span> T, qualifier Q&gt;</div>
<div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="a00933.html#gaab477221230a6e12a3b9e22e750c8928">   91</a></span>&#160;        GLM_FUNC_DECL vec&lt;L, T, Q&gt; <a class="code" href="a00933.html#gaab477221230a6e12a3b9e22e750c8928">fastNormalize</a>(vec&lt;L, T, Q&gt; <span class="keyword">const</span>&amp; x);</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160; </div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;}<span class="comment">// namespace glm</span></div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160; </div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="preprocessor">#include &quot;fast_square_root.inl&quot;</span></div>
</div><!-- fragment --></div><!-- contents -->
<div class="ttc" id="aa00933_html_ga90f66be92ef61e705c005e7b3209edb8"><div class="ttname"><a href="a00933.html#ga90f66be92ef61e705c005e7b3209edb8">glm::fastLength</a></div><div class="ttdeci">GLM_FUNC_DECL T fastLength(vec&lt; L, T, Q &gt; const &amp;x)</div><div class="ttdoc">Faster than the common length function but less accurate.</div></div>
<div class="ttc" id="aa00933_html_ga42d3e771fa7cb3c60d828e315829df19"><div class="ttname"><a href="a00933.html#ga42d3e771fa7cb3c60d828e315829df19">glm::fastDistance</a></div><div class="ttdeci">GLM_FUNC_DECL T fastDistance(vec&lt; L, T, Q &gt; const &amp;x, vec&lt; L, T, Q &gt; const &amp;y)</div><div class="ttdoc">Faster than the common distance function but less accurate.</div></div>
<div class="ttc" id="aa00933_html_gadcd7be12b1e5ee182141359d4c45dd24"><div class="ttname"><a href="a00933.html#gadcd7be12b1e5ee182141359d4c45dd24">glm::fastInverseSqrt</a></div><div class="ttdeci">GLM_FUNC_DECL vec&lt; L, T, Q &gt; fastInverseSqrt(vec&lt; L, T, Q &gt; const &amp;x)</div><div class="ttdoc">Faster than the common inversesqrt function but less accurate.</div></div>
<div class="ttc" id="aa00933_html_gaab477221230a6e12a3b9e22e750c8928"><div class="ttname"><a href="a00933.html#gaab477221230a6e12a3b9e22e750c8928">glm::fastNormalize</a></div><div class="ttdeci">GLM_FUNC_DECL vec&lt; L, T, Q &gt; fastNormalize(vec&lt; L, T, Q &gt; const &amp;x)</div><div class="ttdoc">Faster than the common normalize function but less accurate.</div></div>
<div class="ttc" id="aa00933_html_gae83f0c03614f73eae5478c5b6274ee6d"><div class="ttname"><a href="a00933.html#gae83f0c03614f73eae5478c5b6274ee6d">glm::fastSqrt</a></div><div class="ttdeci">GLM_FUNC_DECL vec&lt; L, T, Q &gt; fastSqrt(vec&lt; L, T, Q &gt; const &amp;x)</div><div class="ttdoc">Faster than the common sqrt function but less accurate.</div></div>
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