Man page - div(3)

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Manual

div

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ATTRIBUTES
STANDARDS
HISTORY
EXAMPLES
SEE ALSO

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).

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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.

SEE ALSO

abs (3), remainder (3)