div, ldiv, lldiv, imaxdiv - compute quotient and remainder of an integer division
Standard C library (libc
, -lc
)
#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.
After
div_t q = div(-5, 3);
the values q.quot
and q.rem
are -1 and -2,
respectively.
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
Thread safety | MT-Safe |
C11, POSIX.1-2008.