div3
Compute quotient and remainder of an integer division
Usage
#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
Library
Standard C library (libc, -lc)
Overview
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 |
Examples
After
div_t q = div(-5, 3);
the values q.quot and q.rem are -1 and -2, respectively.
Releases
19 releases since Debian 1.1 (Buzz); the text changed 13 times.