<!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: IPARITY</title>
|
|
<meta name="description" content="The GNU Fortran Compiler: IPARITY">
|
<meta name="keywords" content="The GNU Fortran Compiler: IPARITY">
|
<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="IRAND.html#IRAND" rel="next" title="IRAND">
|
<link href="IOR.html#IOR" rel="prev" title="IOR">
|
<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="IPARITY"></a>
|
<div class="header">
|
<p>
|
Next: <a href="IRAND.html#IRAND" accesskey="n" rel="next">IRAND</a>, Previous: <a href="IOR.html#IOR" accesskey="p" rel="prev">IOR</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="IPARITY-_002d_002d_002d-Bitwise-XOR-of-array-elements"></a>
|
<h3 class="section">9.145 <code>IPARITY</code> — Bitwise XOR of array elements</h3>
|
<a name="index-IPARITY"></a>
|
<a name="index-array_002c-parity"></a>
|
<a name="index-array_002c-XOR"></a>
|
<a name="index-bits_002c-XOR-of-array-elements"></a>
|
|
<dl compact="compact">
|
<dt><em>Description</em>:</dt>
|
<dd><p>Reduces with bitwise XOR (exclusive or) the elements of <var>ARRAY</var> along
|
dimension <var>DIM</var> if the corresponding element in <var>MASK</var> is <code>TRUE</code>.
|
</p>
|
</dd>
|
<dt><em>Standard</em>:</dt>
|
<dd><p>Fortran 2008 and later
|
</p>
|
</dd>
|
<dt><em>Class</em>:</dt>
|
<dd><p>Transformational function
|
</p>
|
</dd>
|
<dt><em>Syntax</em>:</dt>
|
<dd><table>
|
<tr><td width="80%"><code>RESULT = IPARITY(ARRAY[, MASK])</code></td></tr>
|
<tr><td width="80%"><code>RESULT = IPARITY(ARRAY, DIM[, MASK])</code></td></tr>
|
</table>
|
|
</dd>
|
<dt><em>Arguments</em>:</dt>
|
<dd><table>
|
<tr><td width="15%"><var>ARRAY</var></td><td width="70%">Shall be an array of type <code>INTEGER</code></td></tr>
|
<tr><td width="15%"><var>DIM</var></td><td width="70%">(Optional) shall be a scalar of type
|
<code>INTEGER</code> with a value in the range from 1 to n, where n
|
equals the rank of <var>ARRAY</var>.</td></tr>
|
<tr><td width="15%"><var>MASK</var></td><td width="70%">(Optional) shall be of type <code>LOGICAL</code>
|
and either be a scalar or an array of the same shape as <var>ARRAY</var>.</td></tr>
|
</table>
|
|
</dd>
|
<dt><em>Return value</em>:</dt>
|
<dd><p>The result is of the same type as <var>ARRAY</var>.
|
</p>
|
<p>If <var>DIM</var> is absent, a scalar with the bitwise XOR of all elements in
|
<var>ARRAY</var> is returned. Otherwise, an array of rank n-1, where n equals
|
the rank of <var>ARRAY</var>, and a shape similar to that of <var>ARRAY</var> with
|
dimension <var>DIM</var> dropped is returned.
|
</p>
|
</dd>
|
<dt><em>Example</em>:</dt>
|
<dd><div class="smallexample">
|
<pre class="smallexample">PROGRAM test_iparity
|
INTEGER(1) :: a(2)
|
|
a(1) = b'00100100'
|
a(2) = b'01101010'
|
|
! prints 01001110
|
PRINT '(b8.8)', IPARITY(a)
|
END PROGRAM
|
</pre></div>
|
|
</dd>
|
<dt><em>See also</em>:</dt>
|
<dd><p><a href="IANY.html#IANY">IANY</a>, <a href="IALL.html#IALL">IALL</a>, <a href="IEOR.html#IEOR">IEOR</a>, <a href="PARITY.html#PARITY">PARITY</a>
|
</p></dd>
|
</dl>
|
|
|
|
|
|
|
</body>
|
</html>
|
