164 lines
3.8 KiB
HTML
164 lines
3.8 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of DIV</TITLE>
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</HEAD><BODY>
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<H1>DIV</H1>
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Section: Linux Programmer's Manual (3)<BR>Updated: 2016-03-15<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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div, ldiv, lldiv, imaxdiv - compute quotient and remainder of
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an integer division
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<PRE>
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<B>#include <<A HREF="file:///usr/include/stdlib.h">stdlib.h</A>></B>
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<B>div_t div(int </B><I>numerator</I><B>, int </B><I>denominator</I><B>);</B>
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<B>ldiv_t ldiv(long </B><I>numerator</I><B>, long </B><I>denominator</I><B>);</B>
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<B>lldiv_t lldiv(long long </B><I>numerator</I><B>, long long </B><I>denominator</I><B>);</B>
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<B>#include <<A HREF="file:///usr/include/inttypes.h">inttypes.h</A>></B>
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<B>imaxdiv_t imaxdiv(intmax_t </B><I>numerator</I><B>, intmax_t </B><I>denominator</I><B>);</B>
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</PRE>
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<P>
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Feature Test Macro Requirements for glibc (see
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<B><A HREF="/cgi-bin/man/man2html?7+feature_test_macros">feature_test_macros</A></B>(7)):
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<P>
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<B>lldiv</B>():
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<DL COMPACT><DT id="1"><DD>
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_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
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</DL>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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The
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<B>div</B>()
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function computes the value
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<I>numerator</I>/<I>denominator</I> and
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returns the quotient and remainder in a structure
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named <I>div_t</I> that contains
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two integer members (in unspecified order) named <I>quot</I> and <I>rem</I>.
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The quotient is rounded toward zero.
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The result satisfies <I>quot</I>*<I>denominator</I>+<I>rem</I> = <I>numerator</I>.
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<P>
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The
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<B>ldiv</B>(),
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<B>lldiv</B>(),
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and
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<B>imaxdiv</B>()
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functions do the same,
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dividing numbers of the indicated type and
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returning the result in a structure
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of the indicated name, in all cases with fields <I>quot</I> and <I>rem</I>
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of the same type as the function arguments.
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<A NAME="lbAE"> </A>
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<H2>RETURN VALUE</H2>
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The <I>div_t</I> (etc.) structure.
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<A NAME="lbAF"> </A>
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<H2>ATTRIBUTES</H2>
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For an explanation of the terms used in this section, see
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<B><A HREF="/cgi-bin/man/man2html?7+attributes">attributes</A></B>(7).
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<TABLE BORDER>
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<TR VALIGN=top><TD><B>Interface</B></TD><TD><B>Attribute</B></TD><TD><B>Value</B><BR></TD></TR>
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<TR VALIGN=top><TD>
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<B>div</B>(),
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<B>ldiv</B>(),
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<B>lldiv</B>(),
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<B>imaxdiv</B>()
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</TD><TD>Thread safety</TD><TD>MT-Safe<BR></TD></TR>
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</TABLE>
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<A NAME="lbAG"> </A>
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<H2>CONFORMING TO</H2>
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POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD.
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The functions
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<B>lldiv</B>()
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and
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<B>imaxdiv</B>()
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were added in C99.
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<A NAME="lbAH"> </A>
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<H2>EXAMPLE</H2>
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After
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<P>
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div_t q = div(-5, 3);
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<P>
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the values <I>q.quot</I> and <I>q.rem</I> are -1 and -2, respectively.
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<A NAME="lbAI"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?3+abs">abs</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+remainder">remainder</A></B>(3)
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<A NAME="lbAJ"> </A>
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<H2>COLOPHON</H2>
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This page is part of release 5.05 of the Linux
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<I>man-pages</I>
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project.
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A description of the project,
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information about reporting bugs,
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and the latest version of this page,
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can be found at
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<A HREF="https://www.kernel.org/doc/man-pages/.">https://www.kernel.org/doc/man-pages/.</A>
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="2"><A HREF="#lbAB">NAME</A><DD>
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<DT id="3"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="4"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="5"><A HREF="#lbAE">RETURN VALUE</A><DD>
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<DT id="6"><A HREF="#lbAF">ATTRIBUTES</A><DD>
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<DT id="7"><A HREF="#lbAG">CONFORMING TO</A><DD>
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<DT id="8"><A HREF="#lbAH">EXAMPLE</A><DD>
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<DT id="9"><A HREF="#lbAI">SEE ALSO</A><DD>
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<DT id="10"><A HREF="#lbAJ">COLOPHON</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:38 GMT, March 31, 2021
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