ldiv

ldiv

Integer Conversion: Division

Portability: ISO/ANSI C conforming

SYNOPSIS
DESCRIPTION
RETURN VALUE
EXAMPLE
RELATED FUNCTIONS
SEE ALSO

SYNOPSIS

#include <stdlib.h>

ldiv_t ldiv(long int numer, long int denom);

DESCRIPTION

ldiv computes the quotient and remainder of numer divided by denom .

RETURN VALUE

div returns a structure of type ldiv_t , which contains both the quotient and remainder. The definition of the ldiv_t type is

typedef struct {
   long rem;
   long quot;
}ldiv_t;

The return value is such that

numer == quot * denom + rem

The sign of rem is the same as the sign of numer .

EXAMPLE

This example converts an angle in radians to degrees, minutes, and seconds using ldiv :

#include <math.h>
#include <stdlib.h>
#include <lcmath.h>

main()
{
   double rad, angle;
   long deg, min, sec;
   ldiv_t d;

   puts(" Enter any angle in radians: ");
   scanf("%f", &rad);

      /* Convert angles to seconds and discard fraction. */
   angle = rad * (180 * 60 * 60)/M_PI;

   sec = angle;
   d   = ldiv(sec, 60L);
   sec = d.rem;
   d   = ldiv(d.quot, 60L);
   min = d.rem;
   deg = d.quot;

   printf("%f radians = %ld degrees, %ld, %ld\n", rad,
           deg, min, sec);
}

RELATED FUNCTIONS

div

SEE ALSO

Mathematical Functions

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