<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.18"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>1.0.0 API documentation: GLM_EXT_scalar_ulp</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div 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</div><!-- top --> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> </div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> <div class="header"> <div class="summary"> <a href="#func-members">Functions</a> </div> <div class="headertitle"> <div class="title">GLM_EXT_scalar_ulp<div class="ingroups"><a class="el" href="a00894.html">Stable extensions</a></div></div> </div> </div><!--header--> <div class="contents"> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> Functions</h2></td></tr> <tr class="memitem:ga4b76118ff56adfbc41a5925908b48606"><td class="memItemLeft" align="right" valign="top">GLM_FUNC_DECL <a class="el" href="a00859.html#gaff5189f97f9e842d9636a0f240001b2e">int64</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00865.html#ga4b76118ff56adfbc41a5925908b48606">floatDistance</a> (double x, double y)</td></tr> <tr class="memdesc:ga4b76118ff56adfbc41a5925908b48606"><td class="mdescLeft"> </td><td class="mdescRight">Return the distance in the number of ULP between 2 double-precision floating-point scalars. <a href="a00865.html#ga4b76118ff56adfbc41a5925908b48606">More...</a><br /></td></tr> <tr class="separator:ga4b76118ff56adfbc41a5925908b48606"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gae609a2729cacccbabe966221d61e0dc4"><td class="memItemLeft" align="right" valign="top">GLM_FUNC_DECL int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00865.html#gae609a2729cacccbabe966221d61e0dc4">floatDistance</a> (float x, float y)</td></tr> <tr class="memdesc:gae609a2729cacccbabe966221d61e0dc4"><td class="mdescLeft"> </td><td class="mdescRight">Return the distance in the number of ULP between 2 single-precision floating-point scalars. <a href="a00865.html#gae609a2729cacccbabe966221d61e0dc4">More...</a><br /></td></tr> <tr class="separator:gae609a2729cacccbabe966221d61e0dc4"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga30bc0280e7cefd159867b1aa5050b94a"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr> <tr class="memitem:ga30bc0280e7cefd159867b1aa5050b94a"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00865.html#ga30bc0280e7cefd159867b1aa5050b94a">nextFloat</a> (genType x)</td></tr> <tr class="memdesc:ga30bc0280e7cefd159867b1aa5050b94a"><td class="mdescLeft"> </td><td class="mdescRight">Return the next ULP value(s) after the input value(s). <a href="a00865.html#ga30bc0280e7cefd159867b1aa5050b94a">More...</a><br /></td></tr> <tr class="separator:ga30bc0280e7cefd159867b1aa5050b94a"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga54eb5916c5250c8f0ad8224fb8e0d392"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr> <tr class="memitem:ga54eb5916c5250c8f0ad8224fb8e0d392"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00865.html#ga54eb5916c5250c8f0ad8224fb8e0d392">nextFloat</a> (genType x, int ULPs)</td></tr> <tr class="memdesc:ga54eb5916c5250c8f0ad8224fb8e0d392"><td class="mdescLeft"> </td><td class="mdescRight">Return the value(s) ULP distance after the input value(s). <a href="a00865.html#ga54eb5916c5250c8f0ad8224fb8e0d392">More...</a><br /></td></tr> <tr class="separator:ga54eb5916c5250c8f0ad8224fb8e0d392"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga25320ace5b3e239405077912eb4e7bf9"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr> <tr class="memitem:ga25320ace5b3e239405077912eb4e7bf9"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00865.html#ga25320ace5b3e239405077912eb4e7bf9">prevFloat</a> (genType x)</td></tr> <tr class="memdesc:ga25320ace5b3e239405077912eb4e7bf9"><td class="mdescLeft"> </td><td class="mdescRight">Return the previous ULP value(s) before the input value(s). <a href="a00865.html#ga25320ace5b3e239405077912eb4e7bf9">More...</a><br /></td></tr> <tr class="separator:ga25320ace5b3e239405077912eb4e7bf9"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga760b98a221f1f511edbcdf0b06c49841"><td class="memTemplParams" colspan="2">template<typename genType > </td></tr> <tr class="memitem:ga760b98a221f1f511edbcdf0b06c49841"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00865.html#ga760b98a221f1f511edbcdf0b06c49841">prevFloat</a> (genType x, int ULPs)</td></tr> <tr class="memdesc:ga760b98a221f1f511edbcdf0b06c49841"><td class="mdescLeft"> </td><td class="mdescRight">Return the value(s) ULP distance before the input value(s). <a href="a00865.html#ga760b98a221f1f511edbcdf0b06c49841">More...</a><br /></td></tr> <tr class="separator:ga760b98a221f1f511edbcdf0b06c49841"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <p>Allow the measurement of the accuracy of a function against a reference implementation. This extension works on floating-point data and provide results in ULP.</p> <p>Include <<a class="el" href="a00377.html" title="GLM_EXT_scalar_ulp">glm/ext/scalar_ulp.hpp</a>> to use the features of this extension.</p> <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00887.html">GLM_EXT_vector_ulp</a> </dd> <dd> <a class="el" href="a00863.html">GLM_EXT_scalar_relational</a> </dd></dl> <h2 class="groupheader">Function Documentation</h2> <a id="ga4b76118ff56adfbc41a5925908b48606"></a> <h2 class="memtitle"><span class="permalink"><a href="#ga4b76118ff56adfbc41a5925908b48606">◆ </a></span>floatDistance() <span class="overload">[1/2]</span></h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">GLM_FUNC_DECL <a class="el" href="a00859.html#gaff5189f97f9e842d9636a0f240001b2e">int64</a> glm::floatDistance </td> <td>(</td> <td class="paramtype">double </td> <td class="paramname"><em>x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">double </td> <td class="paramname"><em>y</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return the distance in the number of ULP between 2 double-precision floating-point scalars. </p> <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00865.html">GLM_EXT_scalar_ulp</a> </dd></dl> </div> </div> <a id="gae609a2729cacccbabe966221d61e0dc4"></a> <h2 class="memtitle"><span class="permalink"><a href="#gae609a2729cacccbabe966221d61e0dc4">◆ </a></span>floatDistance() <span class="overload">[2/2]</span></h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">GLM_FUNC_DECL int glm::floatDistance </td> <td>(</td> <td class="paramtype">float </td> <td class="paramname"><em>x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">float </td> <td class="paramname"><em>y</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return the distance in the number of ULP between 2 single-precision floating-point scalars. </p> <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00865.html">GLM_EXT_scalar_ulp</a> </dd></dl> </div> </div> <a id="ga30bc0280e7cefd159867b1aa5050b94a"></a> <h2 class="memtitle"><span class="permalink"><a href="#ga30bc0280e7cefd159867b1aa5050b94a">◆ </a></span>nextFloat() <span class="overload">[1/2]</span></h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">GLM_FUNC_DECL genType glm::nextFloat </td> <td>(</td> <td class="paramtype">genType </td> <td class="paramname"><em>x</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return the next ULP value(s) after the input value(s). </p> <dl class="tparams"><dt>Template Parameters</dt><dd> <table class="tparams"> <tr><td class="paramname">genType</td><td>A floating-point scalar type.</td></tr> </table> </dd> </dl> <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00865.html">GLM_EXT_scalar_ulp</a> </dd></dl> </div> </div> <a id="ga54eb5916c5250c8f0ad8224fb8e0d392"></a> <h2 class="memtitle"><span class="permalink"><a href="#ga54eb5916c5250c8f0ad8224fb8e0d392">◆ </a></span>nextFloat() <span class="overload">[2/2]</span></h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">GLM_FUNC_DECL genType glm::nextFloat </td> <td>(</td> <td class="paramtype">genType </td> <td class="paramname"><em>x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>ULPs</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return the value(s) ULP distance after the input value(s). </p> <dl class="tparams"><dt>Template Parameters</dt><dd> <table class="tparams"> <tr><td class="paramname">genType</td><td>A floating-point scalar type.</td></tr> </table> </dd> </dl> <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00865.html">GLM_EXT_scalar_ulp</a> </dd></dl> </div> </div> <a id="ga25320ace5b3e239405077912eb4e7bf9"></a> <h2 class="memtitle"><span class="permalink"><a href="#ga25320ace5b3e239405077912eb4e7bf9">◆ </a></span>prevFloat() <span class="overload">[1/2]</span></h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">GLM_FUNC_DECL genType glm::prevFloat </td> <td>(</td> <td class="paramtype">genType </td> <td class="paramname"><em>x</em></td><td>)</td> <td></td> </tr> </table> </div><div class="memdoc"> <p>Return the previous ULP value(s) before the input value(s). </p> <dl class="tparams"><dt>Template Parameters</dt><dd> <table class="tparams"> <tr><td class="paramname">genType</td><td>A floating-point scalar type.</td></tr> </table> </dd> </dl> <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00865.html">GLM_EXT_scalar_ulp</a> </dd></dl> </div> </div> <a id="ga760b98a221f1f511edbcdf0b06c49841"></a> <h2 class="memtitle"><span class="permalink"><a href="#ga760b98a221f1f511edbcdf0b06c49841">◆ </a></span>prevFloat() <span class="overload">[2/2]</span></h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">GLM_FUNC_DECL genType glm::prevFloat </td> <td>(</td> <td class="paramtype">genType </td> <td class="paramname"><em>x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>ULPs</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div><div class="memdoc"> <p>Return the value(s) ULP distance before the input value(s). </p> <dl class="tparams"><dt>Template Parameters</dt><dd> <table class="tparams"> <tr><td class="paramname">genType</td><td>A floating-point scalar type.</td></tr> </table> </dd> </dl> <dl class="section see"><dt>See also</dt><dd><a class="el" href="a00865.html">GLM_EXT_scalar_ulp</a> </dd></dl> </div> </div> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.18 </small></address> </body> </html>