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div(3) — Linux manual page

NAME \|LIBRARY \|SYNOPSIS \|DESCRIPTION \|RETURN VALUE \|ATTRIBUTES \|STANDARDS \|HISTORY \|EXAMPLES \|SEE ALSO \|COLOPHON

div(3)                   Library Functions Manualdiv(3)

NAME top

       div, ldiv, lldiv, imaxdiv - compute quotient and remainder of an       integer division

LIBRARY top

       Standard C library (libc,-lc)

SYNOPSIS top

#include <stdlib.h>div_t div(intnumerator, intdenominator);ldiv_t ldiv(longnumerator, longdenominator);lldiv_t lldiv(long longnumerator, long longdenominator);#include <inttypes.h>imaxdiv_t imaxdiv(intmax_tnumerator, intmax_tdenominator);   Feature Test Macro Requirements for glibc (seefeature_test_macros(7)):lldiv():           _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L

DESCRIPTION top

       Thediv() function computes the valuenumerator/denominator and       returns the quotient and remainder in a structure nameddiv_t that       contains two integer members (in unspecified order) namedquot andrem.  The quotient is rounded toward zero.  The result satisfiesquot*denominator+rem = numerator.       Theldiv(),lldiv(), andimaxdiv() functions do the same, dividing       numbers of the indicated type and returning the result in a       structure of the indicated name, in all cases with fieldsquot andrem of the same type as the function arguments.

RETURN VALUE top

       Thediv_t (etc.) structure.

ATTRIBUTES top

       For an explanation of the terms used in this section, seeattributes(7).       ┌──────────────────────────────────────┬───────────────┬─────────┐       │Interface│Attribute│Value│       ├──────────────────────────────────────┼───────────────┼─────────┤       │div(),ldiv(),lldiv(),imaxdiv()    │ Thread safety │ MT-Safe │       └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS top

       C11, POSIX.1-2008.

HISTORY top

       POSIX.1-2001, C89, C99, SVr4, 4.3BSD.lldiv() andimaxdiv() were added in C99.

EXAMPLES top

       After           div_t q = div(-5, 3);       the valuesq.quot andq.rem are -1 and -2, respectively.

COLOPHON top

       This page is part of theman-pages (Linux kernel and C library       user-space interface documentation) project.  Information about       the project can be found at        ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report       for this manual page, see       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.       This page was obtained from the tarball man-pages-6.15.tar.gz       fetched from       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on       2025-08-11.  If you discover any rendering problems in this HTML       version of the page, or you believe there is a better or more up-       to-date source for the page, or you have corrections or       improvements to the information in this COLOPHON (which isnot       part of the original manual page), send a mail to       man-pages@man7.orgLinux man-pages 6.15            2025-05-17div(3)

Pages that refer to this page:div_t(3type), remainder(3), strtoimax(3), wcstoimax(3)

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