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| </style> |
| <title>rint</title> |
| <meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /> |
| <meta name="keywords" content="rint" /> |
| </head> |
| <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="rint"></a> |
| <h1>rint</h1> |
| <p> |
| Round to nearest even integer. |
| </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"> |
| gentype |
| <strong class="fsfunc"> |
| rint |
| </strong> |
| (</code> |
| <td>gentype <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam"></var><code>)</code></td> |
| </td> |
| </tr> |
| </table> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="description"></a> |
| <h2>Description</h2> |
| <p> |
| Round to integral value (using round to nearest even rounding mode) in floating-point format. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="notes"></a> |
| <h2>Notes</h2> |
| <p> |
| <code class="function">rint</code> always rounds according to round to nearest even rounding |
| mode even if the caller is in some other rounding mode. |
| </p> |
| <p> |
| General information about built-in math functions: |
| The built-in math functions are categorized into the following: |
| </p> |
| <p> |
| </p> |
| <div class="itemizedlist"> |
| <ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem">A list of built-in functions that have scalar or vector argument versions, and,</li> |
| <li class="listitem">A list of built-in functions that only take scalar float arguments.</li> |
| </ul> |
| </div> |
| <p> |
| </p> |
| <p> |
| The vector versions of the math functions operate |
| component-wise. The description is per-component. |
| </p> |
| <p> |
| The built-in math functions are not affected by the prevailing rounding mode in the calling |
| environment, and always return the same value as they would if called with the round to |
| nearest even rounding mode. |
| </p> |
| <p> |
| The built-in math functions take scalar or vector arguments. For any specific use of these |
| function, the actual type has to be the same for all arguments and the return type unless |
| otherwise specified. |
| </p> |
| <p> |
| The generic type name <span class="type">gentype</span> is used to indicate that the function can |
| take <span class="type">float</span>, <span class="type">float2</span>, <span class="type">float3</span>, <span class="type">float4</span>, |
| <span class="type">float8</span>, <span class="type">float16</span>, <span class="type">double</span>, <span class="type">double2</span>, |
| <span class="type">double3</span>, <span class="type">double4</span>, <span class="type">double8</span>, or <span class="type">double16</span> |
| as the type for the arguments. |
| </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|8|16}</span> as arguments and return values. |
| </p> |
| <p> |
| The generic type name <span class="type">gentypef</span> is used to indicate that the function can |
| take <span class="type">float</span>, <span class="type">float2</span>, <span class="type">float3</span>, <span class="type">float4</span>, |
| <span class="type">float8</span>, or <span class="type">float16</span> as the type for the arguments. |
| </p> |
| <p> |
| The generic type name <span class="type">gentyped</span> is used to indicate that the function can take |
| <span class="type">double</span>, <span class="type">double2</span>, <span class="type">double3</span>, <span class="type">double4</span>, |
| <span class="type">double8</span>, or <span class="type">double16</span> as the type for the 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=72" target="OpenCL Spec">OpenCL Specification</a> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>Also see</h2> |
| <p> |
| <a class="citerefentry" href="mathFunctions.html"><span class="citerefentry"><span class="refentrytitle">Math 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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