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+<title>The GNU Fortran Compiler: REAL</title>
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+<a name="REAL"></a>
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+<p>
+Next: <a href="RENAME.html#RENAME" accesskey="n" rel="next">RENAME</a>, Previous: <a href="RANK.html#RANK" accesskey="p" rel="previous">RANK</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>
+</div>
+<hr>
+<a name="REAL-_002d_002d_002d-Convert-to-real-type"></a>
+<h3 class="section">8.228 <code>REAL</code> &mdash; Convert to real type</h3>
+<a name="index-REAL"></a>
+<a name="index-REALPART"></a>
+<a name="index-FLOAT"></a>
+<a name="index-DFLOAT"></a>
+<a name="index-FLOATI"></a>
+<a name="index-FLOATJ"></a>
+<a name="index-FLOATK"></a>
+<a name="index-SNGL"></a>
+<a name="index-conversion_002c-to-real-1"></a>
+<a name="index-complex-numbers_002c-real-part-1"></a>
+
+<dl compact="compact">
+<dt><em>Description</em>:</dt>
+<dd><p><code>REAL(A [, KIND])</code> converts its argument <var>A</var> to a real type.  The
+<code>REALPART</code> function is provided for compatibility with <code>g77</code>,
+and its use is strongly discouraged.
+</p>
+</dd>
+<dt><em>Standard</em>:</dt>
+<dd><p>Fortran 77 and later, with <var>KIND</var> argument Fortran 90 and later, has GNU extensions
+</p>
+</dd>
+<dt><em>Class</em>:</dt>
+<dd><p>Elemental function
+</p>
+</dd>
+<dt><em>Syntax</em>:</dt>
+<dd><table>
+<tr><td width="80%"><code>RESULT = REAL(A [, KIND])</code></td></tr>
+<tr><td width="80%"><code>RESULT = REALPART(Z)</code></td></tr>
+</table>
+
+</dd>
+<dt><em>Arguments</em>:</dt>
+<dd><table>
+<tr><td width="15%"><var>A</var></td><td width="70%">Shall be <code>INTEGER</code>, <code>REAL</code>, or
+<code>COMPLEX</code>.</td></tr>
+<tr><td width="15%"><var>KIND</var></td><td width="70%">(Optional) A scalar <code>INTEGER</code> constant
+expression indicating the kind parameter of the result.</td></tr>
+</table>
+
+</dd>
+<dt><em>Return value</em>:</dt>
+<dd><p>These functions return a <code>REAL</code> variable or array under
+the following rules: 
+</p>
+<dl compact="compact">
+<dt>(A)</dt>
+<dd><p><code>REAL(A)</code> is converted to a default real type if <var>A</var> is an 
+integer or real variable.
+</p></dd>
+<dt>(B)</dt>
+<dd><p><code>REAL(A)</code> is converted to a real type with the kind type parameter
+of <var>A</var> if <var>A</var> is a complex variable.
+</p></dd>
+<dt>(C)</dt>
+<dd><p><code>REAL(A, KIND)</code> is converted to a real type with kind type
+parameter <var>KIND</var> if <var>A</var> is a complex, integer, or real
+variable.
+</p></dd>
+</dl>
+
+</dd>
+<dt><em>Example</em>:</dt>
+<dd><div class="smallexample">
+<pre class="smallexample">program test_real
+  complex :: x = (1.0, 2.0)
+  print *, real(x), real(x,8), realpart(x)
+end program test_real
+</pre></div>
+
+</dd>
+<dt><em>Specific names</em>:</dt>
+<dd><table>
+<thead><tr><th width="20%">Name</th><th width="23%">Argument</th><th width="20%">Return type</th><th width="33%">Standard</th></tr></thead>
+<tr><td width="20%"><code>FLOAT(A)</code></td><td width="23%"><code>INTEGER(4)</code></td><td width="20%"><code>REAL(4)</code></td><td width="33%">Fortran 77 and later</td></tr>
+<tr><td width="20%"><code>DFLOAT(A)</code></td><td width="23%"><code>INTEGER(4)</code></td><td width="20%"><code>REAL(8)</code></td><td width="33%">GNU extension</td></tr>
+<tr><td width="20%"><code>FLOATI(A)</code></td><td width="23%"><code>INTEGER(2)</code></td><td width="20%"><code>REAL(4)</code></td><td width="33%">GNU extension (-fdec)</td></tr>
+<tr><td width="20%"><code>FLOATJ(A)</code></td><td width="23%"><code>INTEGER(4)</code></td><td width="20%"><code>REAL(4)</code></td><td width="33%">GNU extension (-fdec)</td></tr>
+<tr><td width="20%"><code>FLOATK(A)</code></td><td width="23%"><code>INTEGER(8)</code></td><td width="20%"><code>REAL(4)</code></td><td width="33%">GNU extension (-fdec)</td></tr>
+<tr><td width="20%"><code>SNGL(A)</code></td><td width="23%"><code>REAL(8)</code></td><td width="20%"><code>REAL(4)</code></td><td width="33%">Fortran 77 and later</td></tr>
+</table>
+
+
+</dd>
+<dt><em>See also</em>:</dt>
+<dd><p><a href="DBLE.html#DBLE">DBLE</a>
+</p>
+</dd>
+</dl>
+
+
+
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+<div class="header">
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