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| <a name="AINT-_002d_002d_002d-Truncate-to-a-whole-number"></a> |
| <h3 class="section">8.11 <code>AINT</code> — Truncate to a whole number</h3> |
| <a name="index-AINT"></a> |
| <a name="index-DINT"></a> |
| <a name="index-floor"></a> |
| <a name="index-rounding_002c-floor"></a> |
| |
| <dl compact="compact"> |
| <dt><em>Description</em>:</dt> |
| <dd><p><code>AINT(A [, KIND])</code> truncates its argument to a whole number. |
| </p> |
| </dd> |
| <dt><em>Standard</em>:</dt> |
| <dd><p>Fortran 77 and later |
| </p> |
| </dd> |
| <dt><em>Class</em>:</dt> |
| <dd><p>Elemental function |
| </p> |
| </dd> |
| <dt><em>Syntax</em>:</dt> |
| <dd><p><code>RESULT = AINT(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 of the argument 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>REAL</code> with the kind type parameter of the |
| argument if the optional <var>KIND</var> is absent; otherwise, the kind |
| type parameter will be given by <var>KIND</var>. If the magnitude of |
| <var>X</var> is less than one, <code>AINT(X)</code> returns zero. If the |
| magnitude is equal to or greater than one then it returns the largest |
| whole number that does not exceed its magnitude. The sign is the same |
| as the sign of <var>X</var>. |
| </p> |
| </dd> |
| <dt><em>Example</em>:</dt> |
| <dd><div class="smallexample"> |
| <pre class="smallexample">program test_aint |
| real(4) x4 |
| real(8) x8 |
| x4 = 1.234E0_4 |
| x8 = 4.321_8 |
| print *, aint(x4), dint(x8) |
| x8 = aint(x4,8) |
| end program test_aint |
| </pre></div> |
| |
| </dd> |
| <dt><em>Specific names</em>:</dt> |
| <dd><table> |
| <tr><td width="20%">Name</td><td width="20%">Argument</td><td width="20%">Return type</td><td width="25%">Standard</td></tr> |
| <tr><td width="20%"><code>AINT(A)</code></td><td width="20%"><code>REAL(4) A</code></td><td width="20%"><code>REAL(4)</code></td><td width="25%">Fortran 77 and later</td></tr> |
| <tr><td width="20%"><code>DINT(A)</code></td><td width="20%"><code>REAL(8) A</code></td><td width="20%"><code>REAL(8)</code></td><td width="25%">Fortran 77 and later</td></tr> |
| </table> |
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