133 lines
4.6 KiB
HTML
133 lines
4.6 KiB
HTML
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<head>
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<title>The GNU Fortran Compiler: DBLE</title>
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<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Intrinsic-Procedures.html#Intrinsic-Procedures" rel="up" title="Intrinsic Procedures">
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="DBLE"></a>
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<div class="header">
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<p>
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Next: <a href="DCMPLX.html#DCMPLX" accesskey="n" rel="next">DCMPLX</a>, Previous: <a href="DATE_005fAND_005fTIME.html#DATE_005fAND_005fTIME" accesskey="p" rel="prev">DATE_AND_TIME</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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</div>
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<hr>
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<a name="DBLE-_002d_002d_002d-Double-conversion-function"></a>
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<h3 class="section">9.76 <code>DBLE</code> — Double conversion function</h3>
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<a name="index-DBLE"></a>
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<a name="index-conversion_002c-to-real"></a>
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<dl compact="compact">
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<dt><em>Description</em>:</dt>
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<dd><p><code>DBLE(A)</code> Converts <var>A</var> to double precision real type.
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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 77 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 = DBLE(A)</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>A</var></td><td width="70%">The type shall be <code>INTEGER</code>, <code>REAL</code>,
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or <code>COMPLEX</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>The return value is of type double precision real.
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</p>
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</dd>
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<dt><em>Example</em>:</dt>
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<dd><div class="smallexample">
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<pre class="smallexample">program test_dble
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real :: x = 2.18
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integer :: i = 5
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complex :: z = (2.3,1.14)
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print *, dble(x), dble(i), dble(z)
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end program test_dble
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</pre></div>
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</dd>
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<dt><em>See also</em>:</dt>
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<dd><p><a href="REAL.html#REAL">REAL</a>
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</p></dd>
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</dl>
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