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<title>The GNU Fortran Compiler: MERGE_BITS</title>
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<a name="MERGE_005fBITS-_002d_002d_002d-Merge-of-bits-under-mask"></a>
<h3 class="section">8.172 <code>MERGE_BITS</code> &mdash; Merge of bits under mask</h3>
<a name="index-MERGE_005fBITS"></a>
<a name="index-bits_002c-merge"></a>
<dl compact="compact">
<dt><em>Description</em>:</dt>
<dd><p><code>MERGE_BITS(I, J, MASK)</code> merges the bits of <var>I</var> and <var>J</var>
as determined by the mask. The i-th bit of the result is equal to the
i-th bit of <var>I</var> if the i-th bit of <var>MASK</var> is 1; it is equal to
the i-th bit of <var>J</var> otherwise.
</p>
</dd>
<dt><em>Standard</em>:</dt>
<dd><p>Fortran 2008 and later
</p>
</dd>
<dt><em>Class</em>:</dt>
<dd><p>Elemental function
</p>
</dd>
<dt><em>Syntax</em>:</dt>
<dd><p><code>RESULT = MERGE_BITS(I, J, MASK)</code>
</p>
</dd>
<dt><em>Arguments</em>:</dt>
<dd><table>
<tr><td width="15%"><var>I</var></td><td width="70%">Shall be of type <code>INTEGER</code>.</td></tr>
<tr><td width="15%"><var>J</var></td><td width="70%">Shall be of type <code>INTEGER</code> and of the same
kind as <var>I</var>.</td></tr>
<tr><td width="15%"><var>MASK</var></td><td width="70%">Shall be of type <code>INTEGER</code> and of the same
kind as <var>I</var>.</td></tr>
</table>
</dd>
<dt><em>Return value</em>:</dt>
<dd><p>The result is of the same type and kind as <var>I</var>.
</p>
</dd>
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