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<div class="title">GLM_GTC_ulp<div class="ingroups"><a class="el" href="a00895.html">Recommended extensions</a></div></div> </div>
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Functions</h2></td></tr>
<tr class="memitem:ga464d5c96158df04d96a11d97b00c51a7"><td class="memItemLeft" align="right" valign="top">GLM_FUNC_DECL <a class="el" href="a00859.html#gaff5189f97f9e842d9636a0f240001b2e">int64</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00915.html#ga464d5c96158df04d96a11d97b00c51a7">float_distance</a> (double x, double y)</td></tr>
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<tr class="separator:ga48e17607989d47bc99e16cce74543e19"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf2a8466ad7470fcafaf91b24b43d1d4d"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
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<tr class="memitem:ga71d68bb1fff11ac1c757d44cd23ddf50"><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
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<tr class="memdesc:ga71d68bb1fff11ac1c757d44cd23ddf50"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the value(s) ULP distance before the input value(s). <a href="a00915.html#ga71d68bb1fff11ac1c757d44cd23ddf50">More...</a><br /></td></tr>
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<tr class="memitem:gaa761d18f8e3a93752550c9ce9556749c"><td class="memTemplParams" colspan="2">template&lt;length_t L, typename T , qualifier Q&gt; </td></tr>
<tr class="memitem:gaa761d18f8e3a93752550c9ce9556749c"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL vec&lt; L, T, Q &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00915.html#gaa761d18f8e3a93752550c9ce9556749c">prev_float</a> (vec&lt; L, T, Q &gt; const &amp;x, int ULPs)</td></tr>
<tr class="memdesc:gaa761d18f8e3a93752550c9ce9556749c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the value(s) ULP distance before the input value(s). <a href="a00915.html#gaa761d18f8e3a93752550c9ce9556749c">More...</a><br /></td></tr>
<tr class="separator:gaa761d18f8e3a93752550c9ce9556749c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga471608a1ffbf4472dc5c84216ea937e8"><td class="memTemplParams" colspan="2">template&lt;length_t L, typename T , qualifier Q&gt; </td></tr>
<tr class="memitem:ga471608a1ffbf4472dc5c84216ea937e8"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL vec&lt; L, T, Q &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00915.html#ga471608a1ffbf4472dc5c84216ea937e8">prev_float</a> (vec&lt; L, T, Q &gt; const &amp;x, vec&lt; L, int, Q &gt; const &amp;ULPs)</td></tr>
<tr class="memdesc:ga471608a1ffbf4472dc5c84216ea937e8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the value(s) ULP distance before the input value(s). <a href="a00915.html#ga471608a1ffbf4472dc5c84216ea937e8">More...</a><br /></td></tr>
<tr class="separator:ga471608a1ffbf4472dc5c84216ea937e8"><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>Include &lt;<a class="el" href="a00578.html" title="GLM_GTC_ulp">glm/gtc/ulp.hpp</a>&gt; to use the features of this extension.</p>
<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>
<h2 class="groupheader">Function Documentation</h2>
<a id="ga464d5c96158df04d96a11d97b00c51a7"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga464d5c96158df04d96a11d97b00c51a7">&#9670;&nbsp;</a></span>float_distance() <span class="overload">[1/4]</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::float_distance </td>
<td>(</td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>y</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</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="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="ga2358fa840554fa36531aee28f3e14d6b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga2358fa840554fa36531aee28f3e14d6b">&#9670;&nbsp;</a></span>float_distance() <span class="overload">[2/4]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL int glm::float_distance </td>
<td>(</td>
<td class="paramtype">float&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float&#160;</td>
<td class="paramname"><em>y</em>&#160;</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="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="gac0726cf2e5ce7d03b0ac4c81438c07fb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gac0726cf2e5ce7d03b0ac4c81438c07fb">&#9670;&nbsp;</a></span>float_distance() <span class="overload">[3/4]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL vec&lt;L, <a class="el" href="a00859.html#gaff5189f97f9e842d9636a0f240001b2e">int64</a>, Q&gt; glm::float_distance </td>
<td>(</td>
<td class="paramtype">vec&lt; L, double, Q &gt; const &amp;&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">vec&lt; L, double, Q &gt; const &amp;&#160;</td>
<td class="paramname"><em>y</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</div><div class="memdoc">
<p>Return the distance in the number of ULP between 2 double-precision floating-point scalars. </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">L</td><td>Integer between 1 and 4 included that qualify the dimension of the vector </td></tr>
<tr><td class="paramname">Q</td><td>Value from qualifier enum</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="ga15349749edb8373079f4dcd518cc3d02"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga15349749edb8373079f4dcd518cc3d02">&#9670;&nbsp;</a></span>float_distance() <span class="overload">[4/4]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL vec&lt;L, int, Q&gt; glm::float_distance </td>
<td>(</td>
<td class="paramtype">vec&lt; L, float, Q &gt; const &amp;&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">vec&lt; L, float, Q &gt; const &amp;&#160;</td>
<td class="paramname"><em>y</em>&#160;</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="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">L</td><td>Integer between 1 and 4 included that qualify the dimension of the vector </td></tr>
<tr><td class="paramname">Q</td><td>Value from qualifier enum</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="gab21fbe69182da4f378862feeffe24b16"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gab21fbe69182da4f378862feeffe24b16">&#9670;&nbsp;</a></span>next_float() <span class="overload">[1/5]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL genType glm::next_float </td>
<td>(</td>
<td class="paramtype">genType&#160;</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="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="gaf8540f4caeba5037dee6506184f360b0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaf8540f4caeba5037dee6506184f360b0">&#9670;&nbsp;</a></span>next_float() <span class="overload">[2/5]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL genType glm::next_float </td>
<td>(</td>
<td class="paramtype">genType&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>ULPs</em>&#160;</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="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="ga72c18d50df8ef360960ddf1f5d09c728"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga72c18d50df8ef360960ddf1f5d09c728">&#9670;&nbsp;</a></span>next_float() <span class="overload">[3/5]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL vec&lt;L, T, Q&gt; glm::next_float </td>
<td>(</td>
<td class="paramtype">vec&lt; L, T, Q &gt; const &amp;&#160;</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">L</td><td>Integer between 1 and 4 included that qualify the dimension of the vector </td></tr>
<tr><td class="paramname">T</td><td>Floating-point </td></tr>
<tr><td class="paramname">Q</td><td>Value from qualifier enum</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="ga78b63ddacacb9e0e8f4172d85f4373aa"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga78b63ddacacb9e0e8f4172d85f4373aa">&#9670;&nbsp;</a></span>next_float() <span class="overload">[4/5]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL vec&lt;L, T, Q&gt; glm::next_float </td>
<td>(</td>
<td class="paramtype">vec&lt; L, T, Q &gt; const &amp;&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>ULPs</em>&#160;</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">L</td><td>Integer between 1 and 4 included that qualify the dimension of the vector </td></tr>
<tr><td class="paramname">T</td><td>Floating-point </td></tr>
<tr><td class="paramname">Q</td><td>Value from qualifier enum</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="ga48e17607989d47bc99e16cce74543e19"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga48e17607989d47bc99e16cce74543e19">&#9670;&nbsp;</a></span>next_float() <span class="overload">[5/5]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL vec&lt;L, T, Q&gt; glm::next_float </td>
<td>(</td>
<td class="paramtype">vec&lt; L, T, Q &gt; const &amp;&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">vec&lt; L, int, Q &gt; const &amp;&#160;</td>
<td class="paramname"><em>ULPs</em>&#160;</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">L</td><td>Integer between 1 and 4 included that qualify the dimension of the vector </td></tr>
<tr><td class="paramname">T</td><td>Floating-point </td></tr>
<tr><td class="paramname">Q</td><td>Value from qualifier enum</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="gaf2a8466ad7470fcafaf91b24b43d1d4d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaf2a8466ad7470fcafaf91b24b43d1d4d">&#9670;&nbsp;</a></span>prev_float() <span class="overload">[1/5]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL genType glm::prev_float </td>
<td>(</td>
<td class="paramtype">genType&#160;</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="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="ga71d68bb1fff11ac1c757d44cd23ddf50"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga71d68bb1fff11ac1c757d44cd23ddf50">&#9670;&nbsp;</a></span>prev_float() <span class="overload">[2/5]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL genType glm::prev_float </td>
<td>(</td>
<td class="paramtype">genType&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>ULPs</em>&#160;</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="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="gaf2268a89effe42c4d6952085fa616cee"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaf2268a89effe42c4d6952085fa616cee">&#9670;&nbsp;</a></span>prev_float() <span class="overload">[3/5]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL vec&lt;L, T, Q&gt; glm::prev_float </td>
<td>(</td>
<td class="paramtype">vec&lt; L, T, Q &gt; const &amp;&#160;</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">L</td><td>Integer between 1 and 4 included that qualify the dimension of the vector </td></tr>
<tr><td class="paramname">T</td><td>Floating-point </td></tr>
<tr><td class="paramname">Q</td><td>Value from qualifier enum</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="gaa761d18f8e3a93752550c9ce9556749c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaa761d18f8e3a93752550c9ce9556749c">&#9670;&nbsp;</a></span>prev_float() <span class="overload">[4/5]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL vec&lt;L, T, Q&gt; glm::prev_float </td>
<td>(</td>
<td class="paramtype">vec&lt; L, T, Q &gt; const &amp;&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>ULPs</em>&#160;</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">L</td><td>Integer between 1 and 4 included that qualify the dimension of the vector </td></tr>
<tr><td class="paramname">T</td><td>Floating-point </td></tr>
<tr><td class="paramname">Q</td><td>Value from qualifier enum</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00915.html">GLM_GTC_ulp</a> </dd></dl>
</div>
</div>
<a id="ga471608a1ffbf4472dc5c84216ea937e8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga471608a1ffbf4472dc5c84216ea937e8">&#9670;&nbsp;</a></span>prev_float() <span class="overload">[5/5]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">GLM_FUNC_DECL vec&lt;L, T, Q&gt; glm::prev_float </td>
<td>(</td>
<td class="paramtype">vec&lt; L, T, Q &gt; const &amp;&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">vec&lt; L, int, Q &gt; const &amp;&#160;</td>
<td class="paramname"><em>ULPs</em>&#160;</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">L</td><td>Integer between 1 and 4 included that qualify the dimension of the vector </td></tr>
<tr><td class="paramname">T</td><td>Floating-point </td></tr>
<tr><td class="paramname">Q</td><td>Value from qualifier enum</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00915.html">GLM_GTC_ulp</a> </dd></dl>
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