<div class="refentry" id="bitfieldInsert">

<div class="titlepage"></div>

<div class="refnamediv">

<h2>Name</h2>

<p>bitfieldInsert — insert a range of bits into an integer</p>

</div>

<div class="refsynopsisdiv">

<h2>Declaration</h2>

<div class="funcsynopsis">

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">genIType <strong class="fsfunc">bitfieldInsert</strong>(</code>

</td>

<td>genIType <var class="pdparam">base</var>, </td>

</tr>

<tr>

<td> </td>

<td>genIType <var class="pdparam">insert</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">offset</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">bits</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">genUType <strong class="fsfunc">bitfieldInsert</strong>(</code>

</td>

<td>genUType <var class="pdparam">base</var>, </td>

</tr>

<tr>

<td> </td>

<td>genUType <var class="pdparam">insert</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">offset</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">bits</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

</div>

</div>

<div class="refsect1" id="parameters">

<h2>Parameters</h2>

<div class="variablelist">

<dl class="variablelist">

<dt>

<span class="term">

<em class="parameter">

<code>base</code>

</em>

</span>

</dt>

<dd>

<p>

Specifies the integer into which to insert <em class="parameter"><code>insert</code></em>.

</p>

</dd>

<dt>

<span class="term">

<em class="parameter">

<code>insert</code>

</em>

</span>

</dt>

<dd>

<p>

Specifies the the value of the bits to insert.

</p>

</dd>

<dt>

<span class="term">

<em class="parameter">

<code>offset</code>

</em>

</span>

</dt>

<dd>

<p>

Specifies the index of the first bit to insert.

</p>

</dd>

<dt>

<span class="term">

<em class="parameter">

<code>bits</code>

</em>

</span>

</dt>

<dd>

<p>

Specifies the number of bits to insert.

</p>

</dd>

</dl>

</div>

</div>

<div class="refsect1" id="description">

<h2>Description</h2>

<p>

<code class="function">bitfieldInsert</code> inserts the <em class="parameter"><code>bits</code></em> least significant bits of <em class="parameter"><code>insert</code></em>

into <em class="parameter"><code>base</code></em> at offset <em class="parameter"><code>offset</code></em>. The returned value will have bits

[<em class="parameter"><code>offset</code></em>, <em class="parameter"><code>offset</code></em> + <em class="parameter"><code>bits</code></em> + 1] taken from [0, <em class="parameter"><code>bits</code></em> - 1]

of <em class="parameter"><code>insert</code></em> and all other bits taken directly from the corresponding bits of <em class="parameter"><code>base</code></em>. If

<em class="parameter"><code>bits</code></em> is zero, the result will simply be the original value of <em class="parameter"><code>base</code></em>. The result will

be undefined if <em class="parameter"><code>offset</code></em> or <em class="parameter"><code>bits</code></em> is negative, or if the sum of <em class="parameter"><code>offset</code></em>

and <em class="parameter"><code>bits</code></em> is greater than the number of bits used to store the operand.

</p>

</div>

{$pipelinestall}{$examples}

<div class="refsect1" id="versions">

<h2>Version Support</h2>

<div class="informaltable">

<table style="border-collapse: collapse; border-top: 2px solid ; border-bottom: 2px solid ; border-left: 2px solid ; border-right: 2px solid ; ">

<colgroup>

<col style="text-align: left; "/>

<col style="text-align: center; " class="firstvers"/>

<col style="text-align: center; "/>

<col style="text-align: center; " class="lastvers"/>

</colgroup>

<thead>

<tr>

<th style="text-align: left; border-right: 2px solid ; ">

</th>

<th style="text-align: center; border-bottom: 2px solid ; " colspan="3">

<span class="bold"><strong>OpenGL ES Shading Language Version</strong></span>

</th>

</tr>

<tr>

<th style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>Function Name</strong></span>

</th>

<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>1.00</strong></span>

</th>

<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>3.00</strong></span>

</th>

<th style="text-align: center; border-bottom: 2px solid ; ">

<span class="bold"><strong>3.10</strong></span>

</th>

</tr>

</thead>

<tbody>

<tr>

<td style="text-align: left; border-right: 2px solid ; ">

<code class="function">bitfieldInsert</code>

</td>

<td style="text-align: center; border-right: 2px solid ; ">-</td>

<td style="text-align: center; border-right: 2px solid ; ">-</td>

<td style="text-align: center; ">✔</td>

</tr>

</tbody>

</table>

</div>

</div>

<div class="refsect1" id="seealso">

<h2>See Also</h2>

<p>

<a class="citerefentry" href="bitfieldExtract"><span class="citerefentry"><span class="refentrytitle">bitfieldExtract</span></span></a>

</p>

</div>

<div class="refsect1" id="Copyright">

<h2>Copyright</h2>

<p>

Copyright © 2011-2014 Khronos Group.

This material may be distributed subject to the terms and conditions set forth in

the Open Publication License, v 1.0, 8 June 1999.

<a class="link" href="https://opencontent.org/openpub/" target="_top">https://opencontent.org/openpub/</a>.

</p>

</div>

</div>