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    <title>isequal</title>
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    <meta name="keywords" content="isequal" />
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    <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="isequal"></a>
        <h1>isequal</h1>
        <p>
            Compare of <code xmlns="http://www.w3.org/1999/xhtml" class="varname">x</code> == <code xmlns="http://www.w3.org/1999/xhtml" class="varname">y</code>.
        </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="_top">int</a>
                    <strong class="fsfunc">                   
                        isequal
                    </strong>
                (</code>
                <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="_top">float</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">x</var>, </td>
              </td>
            </tr>
            <tr valign="top">
              <td> </td>
              <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="_top">float</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">y</var><code>)</code></td>
            </tr>
          </table>
        </div>
        <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="vectorDataTypes.html" target="_top">int<em class="replaceable"><code>n</code></em></a>
                    <strong class="fsfunc">                   
                        isequal
                    </strong>
                (</code>
                <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="_top">float<em class="replaceable"><code>n</code></em></a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">x</var>, </td>
              </td>
            </tr>
            <tr valign="top">
              <td> </td>
              <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="_top">float<em class="replaceable"><code>n</code></em></a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">y</var><code>)</code></td>
            </tr>
          </table>
        </div>
      </div>
      <div class="refsect2">
        <a id="double"></a>
        <h3></h3>
        <div class="informaltable">
          <table border="0">
            <colgroup>
              <col align="left" class="col1" />
            </colgroup>
            <tbody>
              <tr>
                <td align="left">
<span class="type"><a class="link" href="scalarDataTypes.html" target="_top">int</a></span> <code class="function">isequal</code> (<span class="type"><a class="link" href="scalarDataTypes.html" target="_top">double</a></span> <code class="varname">x</code>, 
           <span class="type"><a class="link" href="scalarDataTypes.html" target="_top">double</a></span> <code class="varname">y</code>)      // if double extension enabled 

<span class="type"><a class="link" href="vectorDataTypes.html" target="_top">long<em class="replaceable"><code>n</code></em></a></span> <code class="function">isequal</code> (<span class="type"><a class="link" href="vectorDataTypes.html" target="_top">double<em class="replaceable"><code>n</code></em></a></span> <code class="varname">x</code>, 
             <span class="type"><a class="link" href="vectorDataTypes.html" target="_top">double<em class="replaceable"><code>n</code></em></a></span> <code class="varname">y</code>)      // if double extension enabled 
</td>
              </tr>
            </tbody>
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        <div class="informaltable">
          <table border="0">
            <colgroup>
              <col align="left" class="col1" />
            </colgroup>
            <tbody>
              <tr>
                <td align="left">
<span class="type"><a class="link" href="scalarDataTypes.html" target="_top">int</a></span> <code class="function">isequal</code> (<span class="type"><a class="link" href="scalarDataTypes.html" target="_top">half</a></span> <code class="varname">x</code>, 
           <span class="type"><a class="link" href="scalarDataTypes.html" target="_top">half</a></span> <code class="varname">y</code>)      // if half extension enabled 

<span class="type"><a class="link" href="vectorDataTypes.html" target="_top">short<em class="replaceable"><code>n</code></em></a></span> <code class="function">isequal</code> (<span class="type"><a class="link" href="vectorDataTypes.html" target="_top">half<em class="replaceable"><code>n</code></em></a></span> <code class="varname">x</code>, 
              <span class="type"><a class="link" href="vectorDataTypes.html" target="_top">half<em class="replaceable"><code>n</code></em></a></span> <code class="varname">y</code>)      // if half extension enabled 
</td>
              </tr>
            </tbody>
          </table>
        </div>
      </div>
      <div class="refsect1">
        <a id="description"></a>
        <h2>Description</h2>
        <p>
        Returns the component-wise compare of <code class="varname">x</code> == <code class="varname">y</code>.
        </p>
        <p>
        
        </p>
      </div>
      <div class="refsect1">
        <a id="notes"></a>
        <h2>Notes</h2>
        <p>
The relational and equality operators (&lt;, &lt;=, &gt;, &gt;=, !=, ==) can
 be used with halfn vector types
and shall produce a vector short<em class="replaceable"><code>n</code></em> result.
</p>
        <p>
            The relational and equality operators (&lt;, &lt;=, &gt;, &gt;=, !=, ==) can be used 
            with scalar and vector built-in types and produce a scalar or vector signed integer 
            result respectively.
        </p>
        <p>
            The built-in relational functions can be used with built-in scalar or vector types as 
            arguments and return a scalar or vector integer result. If an implementation extends this 
            specification to support IEEE-754 flags or exceptions, then all built-in Relational 
            shall proceed without raising the <code class="varname">invalid</code> floating-point exception when one or more of the
            operands are NaNs.
        </p>
        <p> 
            The built-in relational functions are extended with
            <a class="citerefentry" href="cl_khr_fp64.html"><span class="citerefentry"><span class="refentrytitle">cl_khr_fp64</span></span></a> 
            to include appropriate versions of functions that take <span class="type">double</span>, and 
            <span class="type">double{2|3|4|8|16}</span> as arguments and return values. They are also extended with
            <a class="citerefentry" href="cl_khr_fp16.html"><span class="citerefentry"><span class="refentrytitle">cl_khr_fp16</span></span></a> to include appropriate versions 
            of functions that take <span class="type">half</span>, and <span class="type">half{2|3|4|8|16}</span> as arguments and return values. 
            The relational and equality operators (&lt;, &lt;=, &gt;, &gt;=, !=, ==) can be used 
            with <span class="type">double<em class="replaceable"><code>n</code></em></span> vector types and shall produce a vector
            <span class="type">long<em class="replaceable"><code>n</code></em></span> result.
        </p>
        <p>
            The function returns a 0 if the specified relation is <code class="constant">false</code> and a 
            1 if the specified relation is <code class="constant">true</code> for scalar argument types. These 
            functions shall return a 0 if the specified relation is <code class="constant">false</code> and a - 1 
            (i.e. all bits set) if the specified relation is <code class="constant">true</code> for vector argument types. 
        </p>
        <p>
            The relational functions <code class="function">isequal</code>, <code class="function">isgreater</code>, <code class="function">isgreaterequal</code>,
            <code class="function">isless</code>, <code class="function">islessequal</code>, and <code class="function">islessgreater</code>
            always return 0 if either argument is not a number (NaN). <code class="function">isnotequal</code> returns 1 if one or both
            arguments are not a number (NaN) and the argument type is a scalar and returns -1 if one or both
            arguments are not a number (NaN) and the argument type is a vector.
        </p>
      </div>
      <div class="refsect1">
        <a id="specification"></a>
        <h2>Specification</h2>
        <p>
            <img src="pdficon_small1.gif" />
                                                 
            <a href="http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf#page=218" target="OpenCL Spec">OpenCL Specification</a>
        </p>
      </div>
      <div class="refsect1">
        <a id="seealso"></a>
        <h2>Also see</h2>
        <p>
            <a class="citerefentry" href="relationalFunctions.html"><span class="citerefentry"><span class="refentrytitle">Relational 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 © 2007-2010 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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