145 lines
5.6 KiB
HTML
145 lines
5.6 KiB
HTML
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
||
|
|
<html>
|
||
|
|
<!-- Copyright (C) 1999-2016 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
Permission is granted to copy, distribute and/or modify this document
|
||
|
|
under the terms of the GNU Free Documentation License, Version 1.3 or
|
||
|
|
any later version published by the Free Software Foundation; with the
|
||
|
|
Invariant Sections being "Funding Free Software", the Front-Cover
|
||
|
|
Texts being (a) (see below), and with the Back-Cover Texts being (b)
|
||
|
|
(see below). A copy of the license is included in the section entitled
|
||
|
|
"GNU Free Documentation License".
|
||
|
|
|
||
|
|
(a) The FSF's Front-Cover Text is:
|
||
|
|
|
||
|
|
A GNU Manual
|
||
|
|
|
||
|
|
(b) The FSF's Back-Cover Text is:
|
||
|
|
|
||
|
|
You have freedom to copy and modify this GNU Manual, like GNU
|
||
|
|
software. Copies published by the Free Software Foundation raise
|
||
|
|
funds for GNU development. -->
|
||
|
|
<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
|
||
|
|
<head>
|
||
|
|
<title>The GNU Fortran Compiler: CSHIFT</title>
|
||
|
|
|
||
|
|
<meta name="description" content="The GNU Fortran Compiler: CSHIFT">
|
||
|
|
<meta name="keywords" content="The GNU Fortran Compiler: CSHIFT">
|
||
|
|
<meta name="resource-type" content="document">
|
||
|
|
<meta name="distribution" content="global">
|
||
|
|
<meta name="Generator" content="makeinfo">
|
||
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||
|
|
<link href="index.html#Top" rel="start" title="Top">
|
||
|
|
<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
|
||
|
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
||
|
|
<link href="Intrinsic-Procedures.html#Intrinsic-Procedures" rel="up" title="Intrinsic Procedures">
|
||
|
|
<link href="CTIME.html#CTIME" rel="next" title="CTIME">
|
||
|
|
<link href="CPU_005fTIME.html#CPU_005fTIME" rel="prev" title="CPU_TIME">
|
||
|
|
<style type="text/css">
|
||
|
|
<!--
|
||
|
|
a.summary-letter {text-decoration: none}
|
||
|
|
blockquote.smallquotation {font-size: smaller}
|
||
|
|
div.display {margin-left: 3.2em}
|
||
|
|
div.example {margin-left: 3.2em}
|
||
|
|
div.indentedblock {margin-left: 3.2em}
|
||
|
|
div.lisp {margin-left: 3.2em}
|
||
|
|
div.smalldisplay {margin-left: 3.2em}
|
||
|
|
div.smallexample {margin-left: 3.2em}
|
||
|
|
div.smallindentedblock {margin-left: 3.2em; font-size: smaller}
|
||
|
|
div.smalllisp {margin-left: 3.2em}
|
||
|
|
kbd {font-style:oblique}
|
||
|
|
pre.display {font-family: inherit}
|
||
|
|
pre.format {font-family: inherit}
|
||
|
|
pre.menu-comment {font-family: serif}
|
||
|
|
pre.menu-preformatted {font-family: serif}
|
||
|
|
pre.smalldisplay {font-family: inherit; font-size: smaller}
|
||
|
|
pre.smallexample {font-size: smaller}
|
||
|
|
pre.smallformat {font-family: inherit; font-size: smaller}
|
||
|
|
pre.smalllisp {font-size: smaller}
|
||
|
|
span.nocodebreak {white-space:nowrap}
|
||
|
|
span.nolinebreak {white-space:nowrap}
|
||
|
|
span.roman {font-family:serif; font-weight:normal}
|
||
|
|
span.sansserif {font-family:sans-serif; font-weight:normal}
|
||
|
|
ul.no-bullet {list-style: none}
|
||
|
|
-->
|
||
|
|
</style>
|
||
|
|
|
||
|
|
|
||
|
|
</head>
|
||
|
|
|
||
|
|
<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
|
||
|
|
<a name="CSHIFT"></a>
|
||
|
|
<div class="header">
|
||
|
|
<p>
|
||
|
|
Next: <a href="CTIME.html#CTIME" accesskey="n" rel="next">CTIME</a>, Previous: <a href="CPU_005fTIME.html#CPU_005fTIME" accesskey="p" rel="prev">CPU_TIME</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>
|
||
|
|
</div>
|
||
|
|
<hr>
|
||
|
|
<a name="CSHIFT-_002d_002d_002d-Circular-shift-elements-of-an-array"></a>
|
||
|
|
<h3 class="section">9.73 <code>CSHIFT</code> — Circular shift elements of an array</h3>
|
||
|
|
<a name="index-CSHIFT"></a>
|
||
|
|
<a name="index-array_002c-shift-circularly"></a>
|
||
|
|
<a name="index-array_002c-permutation"></a>
|
||
|
|
<a name="index-array_002c-rotate"></a>
|
||
|
|
|
||
|
|
<dl compact="compact">
|
||
|
|
<dt><em>Description</em>:</dt>
|
||
|
|
<dd><p><code>CSHIFT(ARRAY, SHIFT [, DIM])</code> performs a circular shift on elements of
|
||
|
|
<var>ARRAY</var> along the dimension of <var>DIM</var>. If <var>DIM</var> is omitted it is
|
||
|
|
taken to be <code>1</code>. <var>DIM</var> is a scalar of type <code>INTEGER</code> in the
|
||
|
|
range of <em>1 \leq DIM \leq n)</em> where <em>n</em> is the rank of <var>ARRAY</var>.
|
||
|
|
If the rank of <var>ARRAY</var> is one, then all elements of <var>ARRAY</var> are shifted
|
||
|
|
by <var>SHIFT</var> places. If rank is greater than one, then all complete rank one
|
||
|
|
sections of <var>ARRAY</var> along the given dimension are shifted. Elements
|
||
|
|
shifted out one end of each rank one section are shifted back in the other end.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><em>Standard</em>:</dt>
|
||
|
|
<dd><p>Fortran 95 and later
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><em>Class</em>:</dt>
|
||
|
|
<dd><p>Transformational function
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><em>Syntax</em>:</dt>
|
||
|
|
<dd><p><code>RESULT = CSHIFT(ARRAY, SHIFT [, DIM])</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.</td></tr>
|
||
|
|
<tr><td width="15%"><var>SHIFT</var></td><td width="70%">The type shall be <code>INTEGER</code>.</td></tr>
|
||
|
|
<tr><td width="15%"><var>DIM</var></td><td width="70%">The type shall be <code>INTEGER</code>.</td></tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
</dd>
|
||
|
|
<dt><em>Return value</em>:</dt>
|
||
|
|
<dd><p>Returns an array of same type and rank as the <var>ARRAY</var> argument.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><em>Example</em>:</dt>
|
||
|
|
<dd><div class="smallexample">
|
||
|
|
<pre class="smallexample">program test_cshift
|
||
|
|
integer, dimension(3,3) :: a
|
||
|
|
a = reshape( (/ 1, 2, 3, 4, 5, 6, 7, 8, 9 /), (/ 3, 3 /))
|
||
|
|
print '(3i3)', a(1,:)
|
||
|
|
print '(3i3)', a(2,:)
|
||
|
|
print '(3i3)', a(3,:)
|
||
|
|
a = cshift(a, SHIFT=(/1, 2, -1/), DIM=2)
|
||
|
|
print *
|
||
|
|
print '(3i3)', a(1,:)
|
||
|
|
print '(3i3)', a(2,:)
|
||
|
|
print '(3i3)', a(3,:)
|
||
|
|
end program test_cshift
|
||
|
|
</pre></div>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
</body>
|
||
|
|
</html>
|