imaxdiv(3) Linux Man Page - System Grab Bag

Name

div, ldiv, lldiv, imaxdiv - compute quotient and remainder of an integer division

Library

Standard C library ( libc ", " -lc )

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). allbox; lbx lb lb T{ div()ldiv()lldiv()imaxdiv()

Interface	Attribute	Value
T}	Thread safety	MT-Safe

Standards

C11, POSIX.1-2008.

History

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

lldiv() and imaxdiv() were added in C99.

Examples

After

div_t q = div(-5, 3);

the values q.quot and q.rem are -1 and -2, respectively.