Museum

div(3C)                 LIBRARY FUNCTIONS                 div(3C)



NAME
     div, ldiv - compute the quotient and remainder

SYNOPSIS
     #include <stdlib.h>

     divt div (int numer, int denom);

     ldivt 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 can  not
     be  represented,  the behavior is undefined; otherwise, quo-
     tient * denom + remainder will equal numer.

     div returns a structure of type divt, comprising  both  the
     quotient and remainder:

          typedef struct divt {
               int  quot;     /*quotient*/
               int  rem; /*remainder*/
          } divt;

     ldiv is similar to div, except that the  arguments  and  the
     members  of  the  returned structure (which has type ldivt)
     all have type long int.





















                                                                1