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<title>The GNU Fortran Compiler: NUM_IMAGES</title>

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<a name="NUM_005fIMAGES"></a>
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<hr>
<a name="NUM_005fIMAGES-_002d_002d_002d-Function-that-returns-the-number-of-images"></a>
<h3 class="section">9.209 <code>NUM_IMAGES</code> &mdash; Function that returns the number of images</h3>
<a name="index-NUM_005fIMAGES"></a>
<a name="index-coarray_002c-NUM_005fIMAGES"></a>
<a name="index-images_002c-number-of"></a>

<dl compact="compact">
<dt><em>Description</em>:</dt>
<dd><p>Returns the number of images.
</p>
</dd>
<dt><em>Standard</em>:</dt>
<dd><p>Fortran 2008 and later. With <var>DISTANCE</var> or <var>FAILED</var> argument, 
Technical Specification (TS) 18508 or later
</p>

</dd>
<dt><em>Class</em>:</dt>
<dd><p>Transformational function
</p>
</dd>
<dt><em>Syntax</em>:</dt>
<dd><p><code>RESULT = NUM_IMAGES(DISTANCE, FAILED)</code>
</p>
</dd>
<dt><em>Arguments</em>:</dt>
<dd><table>
<tr><td width="15%"><var>DISTANCE</var></td><td width="70%">(optional, intent(in)) Nonnegative scalar integer</td></tr>
<tr><td width="15%"><var>FAILED</var></td><td width="70%">(optional, intent(in)) Scalar logical expression</td></tr>
</table>

</dd>
<dt><em>Return value</em>:</dt>
<dd><p>Scalar default-kind integer.  If <var>DISTANCE</var> is not present or has value 0,
the number of images in the current team is returned. For values smaller or
equal distance to the initial team, it returns the number of images index
on the ancestor team which has a distance of <var>DISTANCE</var> from the invoking
team. If <var>DISTANCE</var> is larger than the distance to the initial team, the
number of images of the initial team is returned. If <var>FAILED</var> is not present
the total number of images is returned; if it has the value <code>.TRUE.</code>,
the number of failed images is returned, otherwise, the number of images which
do have not the failed status.
</p>
</dd>
<dt><em>Example</em>:</dt>
<dd><div class="smallexample">
<pre class="smallexample">INTEGER :: value[*]
INTEGER :: i
value = THIS_IMAGE()
SYNC ALL
IF (THIS_IMAGE() == 1) THEN
  DO i = 1, NUM_IMAGES()
    WRITE(*,'(2(a,i0))') 'value[', i, '] is ', value[i]
  END DO
END IF
</pre></div>

</dd>
<dt><em>See also</em>:</dt>
<dd><p><a href="THIS_005fIMAGE.html#THIS_005fIMAGE">THIS_IMAGE</a>, <a href="IMAGE_005fINDEX.html#IMAGE_005fINDEX">IMAGE_INDEX</a>
</p></dd>
</dl>


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