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DIV(3) - Linux man page online | Library functions

Compute quotient and remainder of an integer division.

Chapter
2016-03-15
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(): _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 indi‐ cated 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 │ └──────────────────────────────────┴───────────────┴─────────┘

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.

SEE ALSO

abs(3), remainder(3)

COLOPHON

This page is part of release 4.15 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/.
2016-03-15 DIV(3)
This manual Reference Other manuals
div(3) referred by remainder(3) | strtoimax(3) | wcstoimax(3)
refer to abs(3) | attributes(7) | feature_test_macros(7) | remainder(3)
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