table of contents
DIV(3) | Linux Programmer's Manual | DIV(3) |
NAME¶
div, ldiv, lldiv, imaxdiv - compute quotient and remainder of an integer division
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():
or cc -std=c99
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¶
Multithreading (see pthreads(7))¶
The div(), ldiv(), lldiv(), and imaxdiv() functions are thread-safe.
CONFORMING TO¶
SVr4, 4.3BSD, C89. C99. The functions lldiv() and imaxdiv() were added in C99.
EXAMPLE¶
After
div_t q = div(-5, 3);
the values q.quot and q.rem are -1 and -2, respectively.
SEE ALSO¶
COLOPHON¶
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
2013-07-05 |