The Open Group Base Specifications Issue 6

IEEE Std 1003.1-2001

Copyright © 2001 The IEEE and The Open Group, All Rights reserved.

#### NAME

ldiv, lldiv - compute quotient and remainder of a long division

#### SYNOPSIS

`#include <stdlib.h>`

ldiv_t ldiv(long *numer*`, long` *denom*`);`

lldiv_t lldiv(long long *numer*`, long long` *denom*`);`

#### DESCRIPTION

^{[CX]} The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the
requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers to
the ISO C standard.

These functions shall compute the quotient and remainder of the division of the numerator *numer* by the denominator
*denom*. If the division is inexact, the resulting quotient is the **long** integer (for the *ldiv*() function) or
**long long** integer (for the *lldiv*() function) of lesser magnitude that is the nearest to the algebraic quotient. If
the result cannot be represented, the behavior is undefined; otherwise, *quot* * *denom*+*rem* shall equal
*numer*.

#### RETURN VALUE

The *ldiv*() function shall return a structure of type **ldiv_t**, comprising both the quotient and the remainder. The
structure shall include the following members, in any order:

`long quot; /* Quotient */
long rem; /* Remainder */
`

The *lldiv*() function shall return a structure of type **lldiv_t**, comprising both the quotient and the remainder. The
structure shall include the following members, in any order:

`long long quot; /* Quotient */
long long rem; /* Remainder */
`

#### ERRORS

No errors are defined.

*The following sections are informative.*

#### EXAMPLES

None.

#### APPLICATION USAGE

None.

#### RATIONALE

None.

#### FUTURE DIRECTIONS

None.

#### SEE ALSO

*div*() , the Base Definitions volume of IEEE Std 1003.1-2001, *<stdlib.h>*

#### CHANGE HISTORY

First released in Issue 4. Derived from the ISO C standard.

#### Issue 6

The *lldiv*() function is added for alignment with the ISO/IEC 9899:1999 standard.

*End of informative text.*

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