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<title>Reserved Data Types</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1" />
<meta name="keywords" content="Reserved Data Types" />
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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="ReservedDataTypes"></a>
<h1>Reserved Data Types</h1>
<p>
Built-in reserved Data Types.
</p>
</div>
<div class="refsect1">
<a id="description"></a>
<h2>Description</h2>
<p>
The data type names described in the table below are reserved and cannot be used
by applications as type names. The vector data type names defined in
<a class="citerefentry" href="vectorDataTypes.html"><span class="citerefentry"><span class="refentrytitle">Vector Data Types</span></span></a>,
but where <code class="varname">n</code> is any value other than 2, 3, 4, 8 and 16,
are also reserved.
</p>
<p>
</p>
<div class="informaltable">
<table class="informaltable" border="1">
<colgroup>
<col align="left" class="col1" />
<col align="left" class="col2" />
</colgroup>
<thead>
<tr>
<th align="left">Type</th>
<th align="left">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left"> <span class="type">bool<em class="replaceable"><code>n</code></em></span> </td>
<td align="left"> A boolean vector.</td>
</tr>
<tr>
<td align="left"> <span class="type">half<em class="replaceable"><code>n</code></em></span> </td>
<td align="left"> A 16-bit float vector. </td>
</tr>
<tr>
<td align="left"> <span class="type">quad</span>, <span class="type">quad<em class="replaceable"><code>n</code></em></span> </td>
<td align="left"> A 128-bit floating-point number and vectors.</td>
</tr>
<tr>
<td align="left">
<div class="literallayout"><p><span class="type">complex half</span>,<br />
<span class="type">complex half<em class="replaceable"><code>n</code></em></span>,<br />
<span class="type">imaginary half</span>,<br />
<span class="type">imaginary half<em class="replaceable"><code>n</code></em></span></p></div>
</td>
<td align="left"> Complex and imaginary 16-bit floating-point scalar and vector.</td>
</tr>
<tr>
<td align="left">
<div class="literallayout"><p><span class="type">complex float</span>,<br />
<span class="type">complex float<em class="replaceable"><code>n</code></em></span>,<br />
<span class="type">imaginary float</span>,<br />
<span class="type">imaginary float<em class="replaceable"><code>n</code></em></span></p></div>
</td>
<td align="left"> Complex and imaginary 32-bit floating-point scalar and vector.</td>
</tr>
<tr>
<td align="left">
<div class="literallayout"><p><span class="type">complex double</span>,<br />
<span class="type">complex double<em class="replaceable"><code>n</code></em></span>,<br />
<span class="type">imaginary double</span>,<br />
<span class="type">imaginary double<em class="replaceable"><code>n</code></em></span></p></div>
</td>
<td align="left"> Complex and imaginary 64-bit floating-point scalar and vector.</td>
</tr>
<tr>
<td align="left">
<div class="literallayout"><p><span class="type">complex quad</span>,<br />
<span class="type">complex quad<em class="replaceable"><code>n</code></em></span>,<br />
<span class="type">imaginary quad</span>,<br />
<span class="type">imaginary quad<em class="replaceable"><code>n</code></em></span></p></div>
</td>
<td align="left"> Complex and imaginary 128-bit floating-point scalar and vector.</td>
</tr>
<tr>
<td align="left">
<span class="type">float<em class="replaceable"><code>n</code></em></span>x<span class="emphasis"><em>m</em></span>
</td>
<td align="left">
An <span class="emphasis"><em>n</em></span> x <span class="emphasis"><em>m</em></span> matrix of single precision
floating-point values stored in column-major order.
</td>
</tr>
<tr>
<td align="left"> <span class="type">double<em class="replaceable"><code>n</code></em></span>x<span class="emphasis"><em>m</em></span> </td>
<td align="left">
An <span class="emphasis"><em>n</em></span> x <span class="emphasis"><em>m</em></span> matrix of double precision
floating-point values stored in column-major order.
</td>
</tr>
<tr>
<td align="left">
<div class="literallayout"><p><span class="type">long double</span>,<br />
<span class="type">long double<em class="replaceable"><code>n</code></em></span></p></div>
</td>
<td align="left">
A floating-point scalar and vector type with at
long doublen least as much precision and range as a double
and no more precision and range than a quad.
</td>
</tr>
<tr>
<td align="left">
<span class="type">long long</span>,
<span class="type">long long<em class="replaceable"><code>n</code></em></span>
</td>
<td align="left"> A 128-bit signed integer scalar and vector.</td>
</tr>
<tr>
<td align="left">
<span class="type">unsigned long long</span>,
<span class="type">ulong long</span>,
<span class="type">ulong long<em class="replaceable"><code>n</code></em></span>
</td>
<td align="left"> A 128-bit unsigned integer scalar and vector.</td>
</tr>
</tbody>
</table>
</div>
<p>
</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-2.0-openclc.pdf#namedest=reservedDataTypes" target="OpenCL Spec">OpenCL Specification</a>
</p>
</div>
<div class="refsect1">
<a id="seealso"></a>
<h2>Also see</h2>
<p>
<a class="citerefentry" href="macroLimits.html"><span class="citerefentry"><span class="refentrytitle">Macros and Limits</span></span></a>,
<a class="citerefentry" href="scalarDataTypes.html"><span class="citerefentry"><span class="refentrytitle">Scalar Data Types</span></span></a>,
<a class="citerefentry" href="vectorDataTypes.html"><span class="citerefentry"><span class="refentrytitle">Vector Data Types</span></span></a>,
<a class="citerefentry" href="otherDataTypes.html"><span class="citerefentry"><span class="refentrytitle">Other Data Types</span></span></a>,
<a class="citerefentry" href="abstractDataTypes.html"><span class="citerefentry"><span class="refentrytitle">Abstract Data Types</span></span></a>,
<a class="citerefentry" href="enums.html"><span class="citerefentry"><span class="refentrytitle">Enumerated Data Types</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.
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"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
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