Name
div, ldiv, lldiv, imaxdiv - compute quotient and remainder of an integer divisionLibrary
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 |
T} | 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
Afterdiv_t q = div(-5, 3);
the values q.quot and q.rem are -1 and -2, respectively.