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<title>The GNU Fortran Compiler: IBITS</title>
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Next: <a href="IBSET.html#IBSET" accesskey="n" rel="next">IBSET</a>, Previous: <a href="IBCLR.html#IBCLR" accesskey="p" rel="prev">IBCLR</a>, Up: <a href="Intrinsic-Procedures.html#Intrinsic-Procedures" accesskey="u" rel="up">Intrinsic Procedures</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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<a name="IBITS-_002d_002d_002d-Bit-extraction"></a>
<h3 class="section">9.132 <code>IBITS</code> &mdash; Bit extraction</h3>
<a name="index-IBITS"></a>
<a name="index-bits_002c-get"></a>
<a name="index-bits_002c-extract"></a>
<dl compact="compact">
<dt><em>Description</em>:</dt>
<dd><p><code>IBITS</code> extracts a field of length <var>LEN</var> from <var>I</var>,
starting from bit position <var>POS</var> and extending left for <var>LEN</var>
bits. The result is right-justified and the remaining bits are
zeroed. The value of <code>POS+LEN</code> must be less than or equal to the
value <code>BIT_SIZE(I)</code>.
</p>
</dd>
<dt><em>Standard</em>:</dt>
<dd><p>Fortran 95 and later
</p>
</dd>
<dt><em>Class</em>:</dt>
<dd><p>Elemental function
</p>
</dd>
<dt><em>Syntax</em>:</dt>
<dd><p><code>RESULT = IBITS(I, POS, LEN)</code>
</p>
</dd>
<dt><em>Arguments</em>:</dt>
<dd><table>
<tr><td width="15%"><var>I</var></td><td width="70%">The type shall be <code>INTEGER</code>.</td></tr>
<tr><td width="15%"><var>POS</var></td><td width="70%">The type shall be <code>INTEGER</code>.</td></tr>
<tr><td width="15%"><var>LEN</var></td><td width="70%">The type shall be <code>INTEGER</code>.</td></tr>
</table>
</dd>
<dt><em>Return value</em>:</dt>
<dd><p>The return value is of type <code>INTEGER</code> and of the same kind as
<var>I</var>.
</p>
</dd>
<dt><em>See also</em>:</dt>
<dd><p><a href="BIT_005fSIZE.html#BIT_005fSIZE">BIT_SIZE</a>, <a href="IBCLR.html#IBCLR">IBCLR</a>, <a href="IBSET.html#IBSET">IBSET</a>, <a href="IAND.html#IAND">IAND</a>, <a href="IOR.html#IOR">IOR</a>, <a href="IEOR.html#IEOR">IEOR</a>
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