Manpages - div.3

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

  #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

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.

The div_t (etc.) structure.

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

POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD. The functions *lldiv*() and *imaxdiv*() were added in C99.

After

  div_t q = div(-5, 3);

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

*abs*(3), *remainder*(3)

This page is part of release 5.13 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.