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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> — 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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