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| <title>The GNU Fortran Compiler: IMAGE_INDEX</title> |
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| <a name="IMAGE_005fINDEX-_002d_002d_002d-Function-that-converts-a-cosubscript-to-an-image-index"></a> |
| <h3 class="section">9.138 <code>IMAGE_INDEX</code> — Function that converts a cosubscript to an image index</h3> |
| <a name="index-IMAGE_005fINDEX"></a> |
| <a name="index-coarray_002c-IMAGE_005fINDEX"></a> |
| <a name="index-images_002c-cosubscript-to-image-index-conversion"></a> |
| |
| <dl compact="compact"> |
| <dt><em>Description</em>:</dt> |
| <dd><p>Returns the image index belonging to a cosubscript. |
| </p> |
| </dd> |
| <dt><em>Standard</em>:</dt> |
| <dd><p>Fortran 2008 and later |
| </p> |
| </dd> |
| <dt><em>Class</em>:</dt> |
| <dd><p>Inquiry function. |
| </p> |
| </dd> |
| <dt><em>Syntax</em>:</dt> |
| <dd><p><code>RESULT = IMAGE_INDEX(COARRAY, SUB)</code> |
| </p> |
| </dd> |
| <dt><em>Arguments</em>: None.</dt> |
| <dd><table> |
| <tr><td width="15%"><var>COARRAY</var></td><td width="70%">Coarray of any type.</td></tr> |
| <tr><td width="15%"><var>SUB</var></td><td width="70%">default integer rank-1 array of a size equal to |
| the corank of <var>COARRAY</var>.</td></tr> |
| </table> |
| |
| |
| </dd> |
| <dt><em>Return value</em>:</dt> |
| <dd><p>Scalar default integer with the value of the image index which corresponds |
| to the cosubscripts. For invalid cosubscripts the result is zero. |
| </p> |
| </dd> |
| <dt><em>Example</em>:</dt> |
| <dd><div class="smallexample"> |
| <pre class="smallexample">INTEGER :: array[2,-1:4,8,*] |
| ! Writes 28 (or 0 if there are fewer than 28 images) |
| WRITE (*,*) IMAGE_INDEX (array, [2,0,3,1]) |
| </pre></div> |
| |
| </dd> |
| <dt><em>See also</em>:</dt> |
| <dd><p><a href="THIS_005fIMAGE.html#THIS_005fIMAGE">THIS_IMAGE</a>, <a href="NUM_005fIMAGES.html#NUM_005fIMAGES">NUM_IMAGES</a> |
| </p></dd> |
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