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<title>The GNU Fortran Compiler: DSHIFTL</title>
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<a name="DSHIFTL"></a>
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<p>
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Next: <a href="DSHIFTR.html#DSHIFTR" accesskey="n" rel="next">DSHIFTR</a>, Previous: <a href="DREAL.html#DREAL" accesskey="p" rel="prev">DREAL</a>, Up: <a href="Intrinsic-Procedures.html#Intrinsic-Procedures" accesskey="u" rel="up">Intrinsic Procedures</a> [<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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<hr>
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<a name="DSHIFTL-_002d_002d_002d-Combined-left-shift"></a>
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<h3 class="section">9.83 <code>DSHIFTL</code> — Combined left shift</h3>
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<a name="index-DSHIFTL"></a>
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<a name="index-left-shift_002c-combined"></a>
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<a name="index-shift_002c-left"></a>
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<dl compact="compact">
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<dt><em>Description</em>:</dt>
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<dd><p><code>DSHIFTL(I, J, SHIFT)</code> combines bits of <var>I</var> and <var>J</var>. The
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rightmost <var>SHIFT</var> bits of the result are the leftmost <var>SHIFT</var>
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bits of <var>J</var>, and the remaining bits are the rightmost bits of
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<var>I</var>.
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</p>
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</dd>
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<dt><em>Standard</em>:</dt>
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<dd><p>Fortran 2008 and later
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</p>
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</dd>
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<dt><em>Class</em>:</dt>
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<dd><p>Elemental function
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</p>
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</dd>
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<dt><em>Syntax</em>:</dt>
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<dd><p><code>RESULT = DSHIFTL(I, J, SHIFT)</code>
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</p>
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</dd>
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<dt><em>Arguments</em>:</dt>
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<dd><table>
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<tr><td width="15%"><var>I</var></td><td width="70%">Shall be of type <code>INTEGER</code> or a BOZ constant.</td></tr>
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<tr><td width="15%"><var>J</var></td><td width="70%">Shall be of type <code>INTEGER</code> or a BOZ constant.
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If both <var>I</var> and <var>J</var> have integer type, then they shall have
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the same kind type parameter. <var>I</var> and <var>J</var> shall not both be
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BOZ constants.</td></tr>
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<tr><td width="15%"><var>SHIFT</var></td><td width="70%">Shall be of type <code>INTEGER</code>. It shall
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be nonnegative. If <var>I</var> is not a BOZ constant, then <var>SHIFT</var>
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shall be less than or equal to <code>BIT_SIZE(I)</code>; otherwise,
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<var>SHIFT</var> shall be less than or equal to <code>BIT_SIZE(J)</code>.</td></tr>
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</table>
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</dd>
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<dt><em>Return value</em>:</dt>
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<dd><p>If either <var>I</var> or <var>J</var> is a BOZ constant, it is first converted
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as if by the intrinsic function <code>INT</code> to an integer type with the
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kind type parameter of the other.
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</p>
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</dd>
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<dt><em>See also</em>:</dt>
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<dd><p><a href="DSHIFTR.html#DSHIFTR">DSHIFTR</a>
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</p></dd>
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</dl>
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