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243 lines
9.3 KiB
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
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<title>GLM_GTX_ulp: Accuracy measurement</title>
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<!-- Generated by Doxygen 1.7.5.1 -->
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<div id="navrow1" class="tabs">
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<ul class="tablist">
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<li><a href="index.html"><span>Main Page</span></a></li>
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<li><a href="pages.html"><span>Related Pages</span></a></li>
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<li><a href="modules.html"><span>Modules</span></a></li>
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<li><a href="annotated.html"><span>Classes</span></a></li>
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<div class="header">
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<div class="summary">
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<a href="#func-members">Functions</a> </div>
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<div class="headertitle">
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<div class="title">GLM_GTX_ulp: Accuracy measurement</div> </div>
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<div class="ingroups"><a class="el" href="a00137.html">GTX Extensions (Experimental)</a></div></div>
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<div class="contents">
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<table class="memberdecls">
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<tr><td colspan="2"><h2><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename T > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">uint </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00207.html#ga0c49c371f6b2adf02d03661e0f2499c9">float_distance</a> (T const &x, T const &y)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename T , template< typename > class vecType> </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">vecType< uint > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00207.html#ga9b2de9eb54e59f20b20f7eccd40d435e">float_distance</a> (vecType< T > const &x, vecType< T > const &y)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00207.html#ga3be6de2d954fb457ff88085128e4b521">next_float</a> (genType const &x)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00207.html#ga27752f3f7a9a79a50e95a9ed42800ca7">next_float</a> (genType const &x, uint const &Distance)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00207.html#ga2a0122b31c643ca1546635fe8e4f9f74">prev_float</a> (genType const &x)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00207.html#gae506d2fb08aff01e00763d7ed76fe117">prev_float</a> (genType const &x, uint const &Distance)</td></tr>
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</table>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
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<p>Allow the measurement of the accuracy of a function against a reference implementation. </p>
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<p>This extension works on floating-point data and provide results in ULP. <<a class="el" href="a00115.html" title="OpenGL Mathematics (glm.g-truc.net)">glm/gtx/ulp.hpp</a>> need to be included to use these functionalities. </p>
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<hr/><h2>Function Documentation</h2>
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<a class="anchor" id="ga0c49c371f6b2adf02d03661e0f2499c9"></a><!-- doxytag: member="glm::float_distance" ref="ga0c49c371f6b2adf02d03661e0f2499c9" args="(T const &x, T const &y)" -->
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<div class="memitem">
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<td class="memname">uint glm::float_distance </td>
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<td>(</td>
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<td class="paramtype">T const & </td>
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<td></td>
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<td>)</td>
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</div>
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<div class="memdoc">
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<p>Return the distance in the number of ULP between 2 scalars. </p>
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<p>From GLM_GTX_ulp extension. </p>
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</div>
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<a class="anchor" id="ga9b2de9eb54e59f20b20f7eccd40d435e"></a><!-- doxytag: member="glm::float_distance" ref="ga9b2de9eb54e59f20b20f7eccd40d435e" args="(vecType< T > const &x, vecType< T > const &y)" -->
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<td class="memname">vecType<uint> glm::float_distance </td>
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<td>(</td>
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<td class="paramtype">vecType< T > const & </td>
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<td class="paramname"><em>x</em>, </td>
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<td class="paramtype">vecType< T > const & </td>
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<td class="paramname"><em>y</em> </td>
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<td></td>
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<td>)</td>
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<div class="memdoc">
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<p>Return the distance in the number of ULP between 2 vectors. </p>
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<p>From GLM_GTX_ulp extension. </p>
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</div>
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<a class="anchor" id="ga3be6de2d954fb457ff88085128e4b521"></a><!-- doxytag: member="glm::next_float" ref="ga3be6de2d954fb457ff88085128e4b521" args="(genType const &x)" -->
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<td class="memname">genType glm::next_float </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramname"><em>x</em></td><td>)</td>
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<td></td>
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<p>Return the next ULP value(s) after the input value(s). </p>
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<p>From GLM_GTX_ulp extension. </p>
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</div>
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</div>
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<a class="anchor" id="ga27752f3f7a9a79a50e95a9ed42800ca7"></a><!-- doxytag: member="glm::next_float" ref="ga27752f3f7a9a79a50e95a9ed42800ca7" args="(genType const &x, uint const &Distance)" -->
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<td class="memname">genType glm::next_float </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramtype">uint const & </td>
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<p>Return the value(s) ULP distance after the input value(s). </p>
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<p>From GLM_GTX_ulp extension. </p>
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<a class="anchor" id="ga2a0122b31c643ca1546635fe8e4f9f74"></a><!-- doxytag: member="glm::prev_float" ref="ga2a0122b31c643ca1546635fe8e4f9f74" args="(genType const &x)" -->
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<td class="memname">genType glm::prev_float </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<p>Return the previous ULP value(s) before the input value(s). </p>
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<p>From GLM_GTX_ulp extension. </p>
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<a class="anchor" id="gae506d2fb08aff01e00763d7ed76fe117"></a><!-- doxytag: member="glm::prev_float" ref="gae506d2fb08aff01e00763d7ed76fe117" args="(genType const &x, uint const &Distance)" -->
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<td class="memname">genType glm::prev_float </td>
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<td>(</td>
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<td class="paramtype">uint const & </td>
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<p>Return the value(s) ULP distance before the input value(s). </p>
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<p>From GLM_GTX_ulp extension. </p>
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<hr class="footer"/><address class="footer"><small>
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Generated by  <a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.7.5.1
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