div(3C) div(3C)
NAME
div, ldiv - compute the quotient and remainder
SYNOPSIS
#include <stdlib.h>
div_t div(int numer, int denom);
ldiv_t ldiv(long int numer, long int denom);
DESCRIPTION
div computes the quotient and remainder of the division of the
numerator numer by the denominator denom. This function
provides a well-defined semantics for the signed integral
division and remainder operations, unlike the implementation-
defined semantics of the built-in operations. The sign of the
resulting quotient is that of the algebraic quotient, and, if
the division is inexact, the magnitude of the resulting
quotient is the largest integer less than the magnitude of the
algebraic quotient. If the result cannot be represented, the
behavior is undefined; otherwise, quotient * denom + remainder
will equal numer.
div returns a structure of type div_t, comprising both the
quotient and remainder. Its members are:
int quot; /*quotient*/
int rem; /*remainder*/
ldiv is similar to div, except that the arguments and the
members of the returned structure (which has type ldiv_t) all
have type long int.
Copyright 1994 Novell, Inc. Page 1