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2016-03-15
Aliases: imaxdiv(3), imaxdiv(3), imaxdiv(3), imaxdiv(3), imaxdiv(3), imaxdiv(3), imaxdiv(3), imaxdiv(3), imaxdiv(3), imaxdiv(3), ldiv(3), ldiv(3), ldiv(3), ldiv(3), ldiv(3), ldiv(3), ldiv(3), ldiv(3), ldiv(3), ldiv(3), lldiv(3), lldiv(3), lldiv(3), lldiv(3), lldiv(3), lldiv(3), lldiv(3), lldiv(3), lldiv(3), lldiv(3)

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Manual pages about using GNU/Linux for development

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Linux kernel and C library user-space interface documentation

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():
_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
Thread safety MT-Safe

CONFORMING TO

POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD. 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.

COLOPHON

This page is part of release 5.00 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

REFERENCED BY

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