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| <title>distance</title> |
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| <body> |
| <div class="refentry"> |
| <a id="id-1"></a> |
| <div class="titlepage"></div> |
| <div xmlns="" class="refnamediv"> |
| <a xmlns="http://www.w3.org/1999/xhtml" id="distance"></a> |
| <h1>distance</h1> |
| <p> |
| Vector distance. |
| </p> |
| </div> |
| <div class="refsynopsisdiv"> |
| <h2></h2> |
| <div class="funcsynopsis"> |
| <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"> |
| <tr valign="bottom"> |
| <td> |
| <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef"> |
| <a class="link" href="scalarDataTypes.html" target="pagedisplay">float</a> |
| <strong class="fsfunc"> |
| distance |
| </strong> |
| (</code> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="pagedisplay">float<em class="replaceable"><code>n</code></em></a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">p0</var>, </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="pagedisplay">float<em class="replaceable"><code>n</code></em></a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">p1</var><code>)</code></td> |
| </tr> |
| </table> |
| </div> |
| <div class="funcsynopsis"> |
| <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"> |
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| <td> |
| <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef"> |
| <a class="link" href="scalarDataTypes.html" target="pagedisplay">double</a> |
| <strong class="fsfunc"> |
| distance |
| </strong> |
| (</code> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="pagedisplay">double<em class="replaceable"><code>n</code></em></a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">p0</var>, </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="pagedisplay">double<em class="replaceable"><code>n</code></em></a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">p1</var><code>)</code></td> |
| </tr> |
| </table> |
| </div> |
| </div> |
| <div class="refsect2"> |
| <a id="double"></a> |
| <h3></h3> |
| <div class="informaltable"> |
| <table class="informaltable" border="0"> |
| <colgroup> |
| <col align="left" class="col1" /> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td align="left"> |
| <span class="type"><a class="link" href="scalarDataTypes.html" target="pagedisplay">half</a></span> <code class="function">distance</code> (<span class="type">gentype</span> <code class="varname">p0</code>, |
| <span class="type">gentype</span> <code class="varname">p1</code>) // if half extension enabled |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="description"></a> |
| <h2>Description</h2> |
| <p> |
| Returns the distance between <code class="varname">p0</code> |
| and <code class="varname">p1</code>. This is calculated as |
| <a class="citerefentry" href="length.html"><span class="citerefentry"><span class="refentrytitle">length</span></span></a>(<code class="varname">p0</code> |
| - <code class="varname">p1</code>). |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="notes"></a> |
| <h2>Notes</h2> |
| <p> |
| General information about built-in geometric functions: |
| Built-in geometric functions operate component-wise. The description |
| is per-component. <span class="type">float<em class="replaceable"><code>n</code></em></span> is |
| <span class="type">float</span>, <span class="type">float2</span>, <span class="type">float3</span>, or <span class="type">float4</span> and |
| <span class="type">double<em class="replaceable"><code>n</code></em></span> is <span class="type">double</span>, <span class="type">double2</span>, |
| <span class="type">double3</span>, or <span class="type">double4</span>. The built-in geometric functions are |
| implemented using the round to nearest even rounding mode. |
| </p> |
| <p> |
| The geometric functions can be implemented using contractions such |
| as <a class="citerefentry" href="mad.html"><span class="citerefentry"><span class="refentrytitle">mad</span></span></a> or |
| <a class="citerefentry" href="fma.html"><span class="citerefentry"><span class="refentrytitle">fma</span></span></a>. |
| </p> |
| <p> |
| If extended with |
| <a class="citerefentry" href="cl_khr_fp16.html"><span class="citerefentry"><span class="refentrytitle">cl_khr_fp16</span></span></a>, generic type name |
| <span class="type">gentype</span> may indicate <span class="type">half</span> and <span class="type">half{2|3|4}</span> as |
| arguments. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="specification"></a> |
| <h2>Specification</h2> |
| <p> |
| <img src="pdficon_small1.gif" /> |
| |
| <a href="https://www.khronos.org/registry/cl/specs/opencl-2.1-openclc.pdf#page=88" target="OpenCL Spec">OpenCL Specification</a> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>Also see</h2> |
| <p> |
| <a class="citerefentry" href="geometricFunctions.html"><span class="citerefentry"><span class="refentrytitle">Geometric Functions</span></span></a> |
| </p> |
| </div> |
| <div xmlns="" class="refsect3" lang="en" xml:lang="en"><a xmlns="http://www.w3.org/1999/xhtml" id="Copyright"></a><h4 xmlns="http://www.w3.org/1999/xhtml"></h4><img xmlns="http://www.w3.org/1999/xhtml" src="KhronosLogo.jpg" /><p xmlns="http://www.w3.org/1999/xhtml"></p>Copyright © 2007-2015 The Khronos Group Inc. |
| Permission is hereby granted, free of charge, to any person obtaining a |
| copy of this software and/or associated documentation files (the |
| "Materials"), to deal in the Materials without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sublicense, and/or sell copies of the Materials, and to |
| permit persons to whom the Materials are furnished to do so, subject to |
| the condition that this copyright notice and permission notice shall be included |
| in all copies or substantial portions of the Materials. |
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