div(3)                     Library Functions Manual                     div(3)

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

LIBRARY
       Standard C library (libc, -lc)

SYNOPSIS
       #include <stdlib.h>

       div_t div(int numerator, int denominator);
       ldiv_t ldiv(long numerator, long denominator);
       lldiv_t lldiv(long long numerator, long long denominator);

       #include <inttypes.h>

       imaxdiv_t imaxdiv(intmax_t numerator, intmax_t denominator);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       lldiv():
           _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L

DESCRIPTION
       The div() function computes the value numerator/denominator and returns
       the quotient and remainder in a structure named div_t that contains two
       integer members (in unspecified order) named quot and rem.  The
       quotient is rounded toward zero.  The result satisfies
       quot*denominator+rem = numerator.

       The ldiv(), lldiv(), and imaxdiv() 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 fields quot and rem of the
       same type as the function arguments.

RETURN VALUE
       The div_t (etc.) structure.

ATTRIBUTES
       For an explanation of the terms used in this section, see
       attributes(7).

       +--------------------------------------------+---------------+---------+
       |Interface                                   | Attribute     | Value   |
       +--------------------------------------------+---------------+---------+
       |div (), ldiv (), lldiv (), imaxdiv ()       | Thread safety | MT-Safe |
       +--------------------------------------------+---------------+---------+
STANDARDS
       C11, POSIX.1-2008.

HISTORY
       POSIX.1-2001, C89, C99, SVr4, 4.3BSD.

       lldiv() and imaxdiv() were added in C99.

EXAMPLES
       After

           div_t q = div(-5, 3);

       the values q.quot and q.rem are -1 and -2, respectively.

SEE ALSO
       abs(3), remainder(3)

Linux man-pages 6.7               2023-10-31                            div(3)