<html lang="en"> <head> <title>MODULO - 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="MOD.html#MOD" title="MOD"> <link rel="next" href="MOVE_005fALLOC.html#MOVE_005fALLOC" title="MOVE_ALLOC"> <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="MODULO"></a> <p> Next: <a rel="next" accesskey="n" href="MOVE_005fALLOC.html#MOVE_005fALLOC">MOVE_ALLOC</a>, Previous: <a rel="previous" accesskey="p" href="MOD.html#MOD">MOD</a>, Up: <a rel="up" accesskey="u" href="Intrinsic-Procedures.html#Intrinsic-Procedures">Intrinsic Procedures</a> <hr> </div> <h3 class="section">8.175 <code>MODULO</code> — Modulo function</h3> <p><a name="index-MODULO-868"></a><a name="index-modulo-869"></a><a name="index-division_002c-modulo-870"></a> <dl> <dt><em>Description</em>:<dd><code>MODULO(A,P)</code> computes the <var>A</var> modulo <var>P</var>. <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 = MODULO(A, P)</code> <br><dt><em>Arguments</em>:<dd> <p><table summary=""><tr align="left"><td valign="top" width="15%"><var>A</var> </td><td valign="top" width="70%">Shall be a scalar of type <code>INTEGER</code> or <code>REAL</code> <br></td></tr><tr align="left"><td valign="top" width="15%"><var>P</var> </td><td valign="top" width="70%">Shall be a scalar of the same type and kind as <var>A</var> <br></td></tr></table> <br><dt><em>Return value</em>:<dd>The type and kind of the result are those of the arguments. <dl> <dt>If <var>A</var> and <var>P</var> are of type <code>INTEGER</code>:<dd><code>MODULO(A,P)</code> has the value <var>R</var> such that <code>A=Q*P+R</code>, where <var>Q</var> is an integer and <var>R</var> is between 0 (inclusive) and <var>P</var> (exclusive). <br><dt>If <var>A</var> and <var>P</var> are of type <code>REAL</code>:<dd><code>MODULO(A,P)</code> has the value of <code>A - FLOOR (A / P) * P</code>. </dl> In all cases, if <var>P</var> is zero the result is processor-dependent. <br><dt><em>Example</em>:<dd> <pre class="smallexample"> program test_modulo print *, modulo(17,3) print *, modulo(17.5,5.5) print *, modulo(-17,3) print *, modulo(-17.5,5.5) print *, modulo(17,-3) print *, modulo(17.5,-5.5) end program </pre> </dl> </body></html>