cpp
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<div class="header">
  <div class="summary">
<a href="#func-members">Functions</a>  </div>
  <div class="headertitle">
<div class="title">GLM_GTC_ulp<div class="ingroups"><a class="el" href="a00156.html">GTC Extensions (Stable)</a></div></div>  </div>
</div><!--header-->
<div class="contents">

<p>Allow the measurement of the accuracy of a function against a reference implementation.  
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga2e09bd6c8b0a9c91f6f5683d68245634"><td class="memTemplParams" colspan="2">template&lt;typename T &gt; </td></tr>
<tr class="memitem:ga2e09bd6c8b0a9c91f6f5683d68245634"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL uint&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00181.html#ga2e09bd6c8b0a9c91f6f5683d68245634">float_distance</a> (T const &amp;x, T const &amp;y)</td></tr>
<tr class="memdesc:ga2e09bd6c8b0a9c91f6f5683d68245634"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the distance in the number of ULP between 2 scalars.  <a href="a00181.html#ga2e09bd6c8b0a9c91f6f5683d68245634">More...</a><br /></td></tr>
<tr class="separator:ga2e09bd6c8b0a9c91f6f5683d68245634"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga72b3223069013f336d8c31812b7ada80"><td class="memTemplParams" colspan="2">template&lt;typename T , qualifier Q&gt; </td></tr>
<tr class="memitem:ga72b3223069013f336d8c31812b7ada80"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL vec&lt; 2, uint, Q &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00181.html#ga72b3223069013f336d8c31812b7ada80">float_distance</a> (vec&lt; 2, T, Q &gt; const &amp;x, vec&lt; 2, T, Q &gt; const &amp;y)</td></tr>
<tr class="memdesc:ga72b3223069013f336d8c31812b7ada80"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the distance in the number of ULP between 2 vectors.  <a href="a00181.html#ga72b3223069013f336d8c31812b7ada80">More...</a><br /></td></tr>
<tr class="separator:ga72b3223069013f336d8c31812b7ada80"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gae516ae554faa6117660828240e8bdaf0"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr class="memitem:gae516ae554faa6117660828240e8bdaf0"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00181.html#gae516ae554faa6117660828240e8bdaf0">next_float</a> (genType const &amp;x)</td></tr>
<tr class="memdesc:gae516ae554faa6117660828240e8bdaf0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the next ULP value(s) after the input value(s).  <a href="a00181.html#gae516ae554faa6117660828240e8bdaf0">More...</a><br /></td></tr>
<tr class="separator:gae516ae554faa6117660828240e8bdaf0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad107ec3d9697ef82032a33338a73ebdd"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr class="memitem:gad107ec3d9697ef82032a33338a73ebdd"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00181.html#gad107ec3d9697ef82032a33338a73ebdd">next_float</a> (genType const &amp;x, uint const &amp;Distance)</td></tr>
<tr class="memdesc:gad107ec3d9697ef82032a33338a73ebdd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the value(s) ULP distance after the input value(s).  <a href="a00181.html#gad107ec3d9697ef82032a33338a73ebdd">More...</a><br /></td></tr>
<tr class="separator:gad107ec3d9697ef82032a33338a73ebdd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga2fcbb7bfbfc595712bfddc51b0715b07"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr class="memitem:ga2fcbb7bfbfc595712bfddc51b0715b07"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00181.html#ga2fcbb7bfbfc595712bfddc51b0715b07">prev_float</a> (genType const &amp;x)</td></tr>
<tr class="memdesc:ga2fcbb7bfbfc595712bfddc51b0715b07"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the previous ULP value(s) before the input value(s).  <a href="a00181.html#ga2fcbb7bfbfc595712bfddc51b0715b07">More...</a><br /></td></tr>
<tr class="separator:ga2fcbb7bfbfc595712bfddc51b0715b07"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaa399d5b6472a70e8952f9b26ecaacdec"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr class="memitem:gaa399d5b6472a70e8952f9b26ecaacdec"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00181.html#gaa399d5b6472a70e8952f9b26ecaacdec">prev_float</a> (genType const &amp;x, uint const &amp;Distance)</td></tr>
<tr class="memdesc:gaa399d5b6472a70e8952f9b26ecaacdec"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the value(s) ULP distance before the input value(s).  <a href="a00181.html#gaa399d5b6472a70e8952f9b26ecaacdec">More...</a><br /></td></tr>
<tr class="separator:gaa399d5b6472a70e8952f9b26ecaacdec"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<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. </p>
<p>This extension works on floating-point data and provide results in ULP. &lt;<a class="el" href="a00133.html" title="GLM_GTC_ulp ">glm/gtc/ulp.hpp</a>&gt; need to be included to use these features. </p>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="ga2e09bd6c8b0a9c91f6f5683d68245634"></a>
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<p>Return the distance in the number of ULP between 2 scalars. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00181.html" title="Allow the measurement of the accuracy of a function against a reference implementation. ">GLM_GTC_ulp</a> </dd></dl>

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<p>Return the distance in the number of ULP between 2 vectors. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00181.html" title="Allow the measurement of the accuracy of a function against a reference implementation. ">GLM_GTC_ulp</a> </dd></dl>

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          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
        </tr>
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<p>Return the next ULP value(s) after the input value(s). </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00181.html" title="Allow the measurement of the accuracy of a function against a reference implementation. ">GLM_GTC_ulp</a> </dd></dl>

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          <td class="paramname"><em>x</em>, </td>
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          <td class="paramtype"><a class="el" href="a00160.html#ga91ad9478d81a7aaf2593e8d9c3d06a14">uint</a> const &amp;&#160;</td>
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<p>Return the value(s) ULP distance after the input value(s). </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00181.html" title="Allow the measurement of the accuracy of a function against a reference implementation. ">GLM_GTC_ulp</a> </dd></dl>

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          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
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<p>Return the previous ULP value(s) before the input value(s). </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00181.html" title="Allow the measurement of the accuracy of a function against a reference implementation. ">GLM_GTC_ulp</a> </dd></dl>

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          <td class="paramname"><em>x</em>, </td>
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          <td class="paramtype"><a class="el" href="a00160.html#ga91ad9478d81a7aaf2593e8d9c3d06a14">uint</a> const &amp;&#160;</td>
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          <td>)</td>
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<p>Return the value(s) ULP distance before the input value(s). </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00181.html" title="Allow the measurement of the accuracy of a function against a reference implementation. ">GLM_GTC_ulp</a> </dd></dl>

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