DIV(3) | Linux Programmer's Manual | DIV(3) |
NAME
div, ldiv, lldiv, imaxdiv - compute quotient and remainder of an integer divisionSYNOPSIS
#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 );
<inttypes.h>
imaxdiv_t imaxdiv(intmax_t numerator , intmax_t denominator );
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
_XOPEN_SOURCE >= 600 || _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L;
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
abs(3), remainder(3)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 |