<html lang="en"> <head> <title>ISHFTC - The GNU Fortran Compiler</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="The GNU Fortran Compiler"> <meta name="generator" content="makeinfo 4.13"> <link title="Top" rel="start" href="index.html#Top"> <link rel="up" href="Intrinsic-Procedures.html#Intrinsic-Procedures" title="Intrinsic Procedures"> <link rel="prev" href="ISHFT.html#ISHFT" title="ISHFT"> <link rel="next" href="ISNAN.html#ISNAN" title="ISNAN"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <!-- Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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.--> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"><!-- pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } span.sc { font-variant:small-caps } span.roman { font-family:serif; font-weight:normal; } span.sansserif { font-family:sans-serif; font-weight:normal; } --></style> </head> <body> <div class="node"> <a name="ISHFTC"></a> <p> Next: <a rel="next" accesskey="n" href="ISNAN.html#ISNAN">ISNAN</a>, Previous: <a rel="previous" accesskey="p" href="ISHFT.html#ISHFT">ISHFT</a>, Up: <a rel="up" accesskey="u" href="Intrinsic-Procedures.html#Intrinsic-Procedures">Intrinsic Procedures</a> <hr> </div> <h3 class="section">8.133 <code>ISHFTC</code> — Shift bits circularly</h3> <p><a name="index-ISHFTC-746"></a><a name="index-bits_002c-shift-circular-747"></a> <dl> <dt><em>Description</em>:<dd><code>ISHFTC</code> returns a value corresponding to <var>I</var> with the rightmost <var>SIZE</var> bits shifted circularly <var>SHIFT</var> places; that is, bits shifted out one end are shifted into the opposite end. A value of <var>SHIFT</var> greater than zero corresponds to a left shift, a value of zero corresponds to no shift, and a value less than zero corresponds to a right shift. The absolute value of <var>SHIFT</var> must be less than <var>SIZE</var>. If the <var>SIZE</var> argument is omitted, it is taken to be equivalent to <code>BIT_SIZE(I)</code>. <br><dt><em>Standard</em>:<dd>Fortran 95 and later <br><dt><em>Class</em>:<dd>Elemental function <br><dt><em>Syntax</em>:<dd><code>RESULT = ISHFTC(I, SHIFT [, SIZE])</code> <br><dt><em>Arguments</em>:<dd> <p><table summary=""><tr align="left"><td valign="top" width="15%"><var>I</var> </td><td valign="top" width="70%">The type shall be <code>INTEGER</code>. <br></td></tr><tr align="left"><td valign="top" width="15%"><var>SHIFT</var> </td><td valign="top" width="70%">The type shall be <code>INTEGER</code>. <br></td></tr><tr align="left"><td valign="top" width="15%"><var>SIZE</var> </td><td valign="top" width="70%">(Optional) The type shall be <code>INTEGER</code>; the value must be greater than zero and less than or equal to <code>BIT_SIZE(I)</code>. <br></td></tr></table> <br><dt><em>Return value</em>:<dd>The return value is of type <code>INTEGER</code> and of the same kind as <var>I</var>. <br><dt><em>See also</em>:<dd><a href="ISHFT.html#ISHFT">ISHFT</a> </dl> </body></html>