163 lines
6.2 KiB
HTML
163 lines
6.2 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1999-2016 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Funding Free Software", the Front-Cover
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Texts being (a) (see below), and with the Back-Cover Texts being (b)
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(see below). A copy of the license is included in the section entitled
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"GNU Free Documentation License".
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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software. Copies published by the Free Software Foundation raise
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funds for GNU development. -->
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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>The GNU Fortran Compiler: ALL</title>
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<meta name="description" content="The GNU Fortran Compiler: ALL">
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<meta name="keywords" content="The GNU Fortran Compiler: ALL">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Intrinsic-Procedures.html#Intrinsic-Procedures" rel="up" title="Intrinsic Procedures">
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<link href="ALLOCATED.html#ALLOCATED" rel="next" title="ALLOCATED">
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<link href="ALARM.html#ALARM" rel="prev" title="ALARM">
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<style type="text/css">
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a.summary-letter {text-decoration: none}
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div.display {margin-left: 3.2em}
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-->
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</style>
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</head>
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="ALL"></a>
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<div class="header">
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<p>
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Next: <a href="ALLOCATED.html#ALLOCATED" accesskey="n" rel="next">ALLOCATED</a>, Previous: <a href="ALARM.html#ALARM" accesskey="p" rel="prev">ALARM</a>, Up: <a href="Intrinsic-Procedures.html#Intrinsic-Procedures" accesskey="u" rel="up">Intrinsic Procedures</a> [<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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</div>
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<hr>
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<a name="ALL-_002d_002d_002d-All-values-in-MASK-along-DIM-are-true"></a>
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<h3 class="section">9.13 <code>ALL</code> — All values in <var>MASK</var> along <var>DIM</var> are true</h3>
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<a name="index-ALL"></a>
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<a name="index-array_002c-apply-condition"></a>
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<a name="index-array_002c-condition-testing"></a>
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<dl compact="compact">
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<dt><em>Description</em>:</dt>
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<dd><p><code>ALL(MASK [, DIM])</code> determines if all the values are true in <var>MASK</var>
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in the array along dimension <var>DIM</var>.
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</p>
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</dd>
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<dt><em>Standard</em>:</dt>
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<dd><p>Fortran 95 and later
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</p>
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</dd>
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<dt><em>Class</em>:</dt>
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<dd><p>Transformational function
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</p>
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</dd>
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<dt><em>Syntax</em>:</dt>
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<dd><p><code>RESULT = ALL(MASK [, DIM])</code>
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</p>
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</dd>
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<dt><em>Arguments</em>:</dt>
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<dd><table>
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<tr><td width="15%"><var>MASK</var></td><td width="70%">The type of the argument shall be <code>LOGICAL</code> and
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it shall not be scalar.</td></tr>
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<tr><td width="15%"><var>DIM</var></td><td width="70%">(Optional) <var>DIM</var> shall be a scalar integer
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with a value that lies between one and the rank of <var>MASK</var>.</td></tr>
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</table>
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</dd>
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<dt><em>Return value</em>:</dt>
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<dd><p><code>ALL(MASK)</code> returns a scalar value of type <code>LOGICAL</code> where
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the kind type parameter is the same as the kind type parameter of
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<var>MASK</var>. If <var>DIM</var> is present, then <code>ALL(MASK, DIM)</code> returns
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an array with the rank of <var>MASK</var> minus 1. The shape is determined from
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the shape of <var>MASK</var> where the <var>DIM</var> dimension is elided.
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</p>
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<dl compact="compact">
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<dt>(A)</dt>
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<dd><p><code>ALL(MASK)</code> is true if all elements of <var>MASK</var> are true.
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It also is true if <var>MASK</var> has zero size; otherwise, it is false.
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</p></dd>
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<dt>(B)</dt>
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<dd><p>If the rank of <var>MASK</var> is one, then <code>ALL(MASK,DIM)</code> is equivalent
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to <code>ALL(MASK)</code>. If the rank is greater than one, then <code>ALL(MASK,DIM)</code>
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is determined by applying <code>ALL</code> to the array sections.
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</p></dd>
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</dl>
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</dd>
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<dt><em>Example</em>:</dt>
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<dd><div class="smallexample">
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<pre class="smallexample">program test_all
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logical l
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l = all((/.true., .true., .true./))
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print *, l
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call section
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contains
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subroutine section
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integer a(2,3), b(2,3)
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a = 1
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b = 1
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b(2,2) = 2
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print *, all(a .eq. b, 1)
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print *, all(a .eq. b, 2)
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end subroutine section
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end program test_all
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</pre></div>
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</dd>
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</dl>
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<hr>
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<div class="header">
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<p>
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Next: <a href="ALLOCATED.html#ALLOCATED" accesskey="n" rel="next">ALLOCATED</a>, Previous: <a href="ALARM.html#ALARM" accesskey="p" rel="prev">ALARM</a>, Up: <a href="Intrinsic-Procedures.html#Intrinsic-Procedures" accesskey="u" rel="up">Intrinsic Procedures</a> [<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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</div>
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</body>
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</html>
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