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).
Interface |
Attribute |
Value |
div (), ldiv (), lldiv (), imaxdiv () |
Thread safety |
MT-Safe |
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)