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<title>The GNU Fortran Compiler: FLOOR</title>
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<a name="FLOOR-_002d_002d_002d-Integer-floor-function"></a>
<h3 class="section">8.86 <code>FLOOR</code> &mdash; Integer floor function</h3>
<a name="index-FLOOR"></a>
<a name="index-floor-1"></a>
<a name="index-rounding_002c-floor-1"></a>
<dl compact="compact">
<dt><em>Description</em>:</dt>
<dd><p><code>FLOOR(A)</code> returns the greatest integer less than or equal to <var>X</var>.
</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 = FLOOR(A [, KIND])</code>
</p>
</dd>
<dt><em>Arguments</em>:</dt>
<dd><table>
<tr><td width="15%"><var>A</var></td><td width="70%">The type shall be <code>REAL</code>.</td></tr>
<tr><td width="15%"><var>KIND</var></td><td width="70%">(Optional) An <code>INTEGER</code> initialization
expression indicating the kind parameter of the result.</td></tr>
</table>
</dd>
<dt><em>Return value</em>:</dt>
<dd><p>The return value is of type <code>INTEGER(KIND)</code> if <var>KIND</var> is present
and of default-kind <code>INTEGER</code> otherwise.
</p>
</dd>
<dt><em>Example</em>:</dt>
<dd><div class="smallexample">
<pre class="smallexample">program test_floor
real :: x = 63.29
real :: y = -63.59
print *, floor(x) ! returns 63
print *, floor(y) ! returns -64
end program test_floor
</pre></div>
</dd>
<dt><em>See also</em>:</dt>
<dd><p><a href="CEILING.html#CEILING">CEILING</a>, <a href="NINT.html#NINT">NINT</a>
</p>
</dd>
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