table of contents
div(3) | Library Functions Manual | div(3) |
NAME¶
div, ldiv, lldiv, imaxdiv - compute quotient and remainder of an integer division
LIBRARY¶
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);
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 |
div (), ldiv (), lldiv (), imaxdiv () | 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¶
After
div_t q = div(-5, 3);
the values q.quot and q.rem are -1 and -2, respectively.
SEE ALSO¶
2023-03-30 | Linux man-pages 6.04 |