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| <title>The GNU Fortran Compiler: SIZE</title> |
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| <a name="SIZE-_002d_002d_002d-Determine-the-size-of-an-array"></a> |
| <h3 class="section">8.227 <code>SIZE</code> — Determine the size of an array</h3> |
| <a name="index-SIZE"></a> |
| <a name="index-array_002c-size"></a> |
| <a name="index-array_002c-number-of-elements-1"></a> |
| <a name="index-array_002c-count-elements"></a> |
| |
| <dl compact="compact"> |
| <dt><em>Description</em>:</dt> |
| <dd><p>Determine the extent of <var>ARRAY</var> along a specified dimension <var>DIM</var>, |
| or the total number of elements in <var>ARRAY</var> if <var>DIM</var> is absent. |
| </p> |
| </dd> |
| <dt><em>Standard</em>:</dt> |
| <dd><p>Fortran 95 and later, with <var>KIND</var> argument Fortran 2003 and later |
| </p> |
| </dd> |
| <dt><em>Class</em>:</dt> |
| <dd><p>Inquiry function |
| </p> |
| </dd> |
| <dt><em>Syntax</em>:</dt> |
| <dd><p><code>RESULT = SIZE(ARRAY[, DIM [, KIND]])</code> |
| </p> |
| </dd> |
| <dt><em>Arguments</em>:</dt> |
| <dd><table> |
| <tr><td width="15%"><var>ARRAY</var></td><td width="70%">Shall be an array of any type. If <var>ARRAY</var> is |
| a pointer it must be associated and allocatable arrays must be allocated.</td></tr> |
| <tr><td width="15%"><var>DIM</var></td><td width="70%">(Optional) shall be a scalar of type <code>INTEGER</code> |
| and its value shall be in the range from 1 to n, where n equals the rank |
| of <var>ARRAY</var>.</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</code> and of kind <var>KIND</var>. If |
| <var>KIND</var> is absent, the return value is of default integer kind. |
| </p> |
| </dd> |
| <dt><em>Example</em>:</dt> |
| <dd><div class="smallexample"> |
| <pre class="smallexample">PROGRAM test_size |
| WRITE(*,*) SIZE((/ 1, 2 /)) ! 2 |
| END PROGRAM |
| </pre></div> |
| |
| </dd> |
| <dt><em>See also</em>:</dt> |
| <dd><p><a href="SHAPE.html#SHAPE">SHAPE</a>, <a href="RESHAPE.html#RESHAPE">RESHAPE</a> |
| </p></dd> |
| </dl> |
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