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

## Synopsis

#include <stdlib.h> div_t div(intnumerator, intdenominator); ldiv_t ldiv(longnumerator, longdenominator); lldiv_t lldiv(long longnumerator, long longdenominator); #include <inttypes.h> imaxdiv_t imaxdiv(intmax_tnumerator, intmax_tdenominator);

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 |
---|---|---|

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

## Colophon

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## Referenced By

remainder(3), strtoimax(3), wcstoimax(3).

The man pages imaxdiv(3), ldiv(3) and lldiv(3) are aliases of div(3).