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CentOS 7.0 - man page for div (centos section 3)

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(): _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 struc- ture 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 informa- tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. 2013-07-05 DIV(3)


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