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+<title>The GNU Fortran Compiler: ALL</title>
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+<a name="ALL"></a>
+<div class="header">
+<p>
+Next: <a href="ALLOCATED.html#ALLOCATED" accesskey="n" rel="next">ALLOCATED</a>, Previous: <a href="ALARM.html#ALARM" accesskey="p" rel="previous">ALARM</a>, Up: <a href="Intrinsic-Procedures.html#Intrinsic-Procedures" accesskey="u" rel="up">Intrinsic Procedures</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
+</div>
+<hr>
+<a name="ALL-_002d_002d_002d-All-values-in-MASK-along-DIM-are-true"></a>
+<h3 class="section">8.14 <code>ALL</code> &mdash; All values in <var>MASK</var> along <var>DIM</var> are true</h3>
+<a name="index-ALL"></a>
+<a name="index-array_002c-apply-condition"></a>
+<a name="index-array_002c-condition-testing"></a>
+
+<dl compact="compact">
+<dt><em>Description</em>:</dt>
+<dd><p><code>ALL(MASK [, DIM])</code> determines if all the values are true in <var>MASK</var>
+in the array along dimension <var>DIM</var>.
+</p>
+</dd>
+<dt><em>Standard</em>:</dt>
+<dd><p>Fortran 90 and later
+</p>
+</dd>
+<dt><em>Class</em>:</dt>
+<dd><p>Transformational function
+</p>
+</dd>
+<dt><em>Syntax</em>:</dt>
+<dd><p><code>RESULT = ALL(MASK [, DIM])</code>
+</p>
+</dd>
+<dt><em>Arguments</em>:</dt>
+<dd><table>
+<tr><td width="15%"><var>MASK</var></td><td width="70%">The type of the argument shall be <code>LOGICAL</code> and
+it shall not be scalar.</td></tr>
+<tr><td width="15%"><var>DIM</var></td><td width="70%">(Optional) <var>DIM</var> shall be a scalar integer
+with a value that lies between one and the rank of <var>MASK</var>.</td></tr>
+</table>
+
+</dd>
+<dt><em>Return value</em>:</dt>
+<dd><p><code>ALL(MASK)</code> returns a scalar value of type <code>LOGICAL</code> where
+the kind type parameter is the same as the kind type parameter of
+<var>MASK</var>. If <var>DIM</var> is present, then <code>ALL(MASK, DIM)</code> returns
+an array with the rank of <var>MASK</var> minus 1. The shape is determined from
+the shape of <var>MASK</var> where the <var>DIM</var> dimension is elided.
+</p>
+<dl compact="compact">
+<dt>(A)</dt>
+<dd><p><code>ALL(MASK)</code> is true if all elements of <var>MASK</var> are true.
+It also is true if <var>MASK</var> has zero size; otherwise, it is false.
+</p></dd>
+<dt>(B)</dt>
+<dd><p>If the rank of <var>MASK</var> is one, then <code>ALL(MASK,DIM)</code> is equivalent
+to <code>ALL(MASK)</code>. If the rank is greater than one, then <code>ALL(MASK,DIM)</code>
+is determined by applying <code>ALL</code> to the array sections.
+</p></dd>
+</dl>
+
+</dd>
+<dt><em>Example</em>:</dt>
+<dd><div class="smallexample">
+<pre class="smallexample">program test_all
+ logical l
+ l = all((/.true., .true., .true./))
+ print *, l
+ call section
+ contains
+ subroutine section
+ integer a(2,3), b(2,3)
+ a = 1
+ b = 1
+ b(2,2) = 2
+ print *, all(a .eq. b, 1)
+ print *, all(a .eq. b, 2)
+ end subroutine section
+end program test_all
+</pre></div>
+</dd>
+</dl>
+
+
+
+<hr>
+<div class="header">
+<p>
+Next: <a href="ALLOCATED.html#ALLOCATED" accesskey="n" rel="next">ALLOCATED</a>, Previous: <a href="ALARM.html#ALARM" accesskey="p" rel="previous">ALARM</a>, Up: <a href="Intrinsic-Procedures.html#Intrinsic-Procedures" accesskey="u" rel="up">Intrinsic Procedures</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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