158 lines
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158 lines
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<title>The GNU Fortran Compiler: INT</title>
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<a name="INT"></a>
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<div class="header">
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<p>
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Next: <a href="INT2.html#INT2" accesskey="n" rel="next">INT2</a>, Previous: <a href="INDEX-intrinsic.html#INDEX-intrinsic" accesskey="p" rel="prev">INDEX intrinsic</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="INT-_002d_002d_002d-Convert-to-integer-type"></a>
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<h3 class="section">9.141 <code>INT</code> — Convert to integer type</h3>
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<a name="index-INT"></a>
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<a name="index-IFIX"></a>
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<a name="index-IDINT"></a>
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<a name="index-conversion_002c-to-integer-3"></a>
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<dl compact="compact">
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<dt><em>Description</em>:</dt>
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<dd><p>Convert to integer 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 = INT(A [, KIND))</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%">Shall be of type <code>INTEGER</code>,
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<code>REAL</code>, or <code>COMPLEX</code>.</td></tr>
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<tr><td width="15%"><var>KIND</var></td><td width="70%">(Optional) An <code>INTEGER</code> initialization
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expression indicating the kind parameter of the result.</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>These functions return a <code>INTEGER</code> variable or array under
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the following rules:
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</p>
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<dl compact="compact">
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<dt>(A)</dt>
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<dd><p>If <var>A</var> is of type <code>INTEGER</code>, <code>INT(A) = A</code>
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</p></dd>
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<dt>(B)</dt>
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<dd><p>If <var>A</var> is of type <code>REAL</code> and <em>|A| < 1</em>, <code>INT(A)</code>
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equals <code>0</code>. If <em>|A| \geq 1</em>, then <code>INT(A)</code> is the integer
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whose magnitude is the largest integer that does not exceed the magnitude
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of <var>A</var> and whose sign is the same as the sign of <var>A</var>.
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</p></dd>
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<dt>(C)</dt>
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<dd><p>If <var>A</var> is of type <code>COMPLEX</code>, rule B is applied to the real part of <var>A</var>.
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</p></dd>
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</dl>
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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_int
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integer :: i = 42
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complex :: z = (-3.7, 1.0)
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print *, int(i)
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print *, int(z), int(z,8)
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end program
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</pre></div>
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</dd>
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<dt><em>Specific names</em>:</dt>
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<dd><table>
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<tr><td width="20%">Name</td><td width="20%">Argument</td><td width="20%">Return type</td><td width="25%">Standard</td></tr>
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<tr><td width="20%"><code>INT(A)</code></td><td width="20%"><code>REAL(4) A</code></td><td width="20%"><code>INTEGER</code></td><td width="25%">Fortran 77 and later</td></tr>
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<tr><td width="20%"><code>IFIX(A)</code></td><td width="20%"><code>REAL(4) A</code></td><td width="20%"><code>INTEGER</code></td><td width="25%">Fortran 77 and later</td></tr>
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<tr><td width="20%"><code>IDINT(A)</code></td><td width="20%"><code>REAL(8) A</code></td><td width="20%"><code>INTEGER</code></td><td width="25%">Fortran 77 and later</td></tr>
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</table>
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</dd>
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</dl>
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