/*--------------------------------------------------------------------*/
/* intmath.c (Version 3)                                              */
/* Author: Bob Dondero                                                */
/*--------------------------------------------------------------------*/

#include "intmath.h"

/*--------------------------------------------------------------------*/

/* Return the greatest common divisor of positive integers iFirst and
   iSecond. */

int gcd(int iFirst, int iSecond)
{
   int iTemp;

   /* Use Euclid's algorithm. */

   while (iSecond != 0)
   {
      iTemp = iFirst % iSecond;
      iFirst = iSecond;
      iSecond = iTemp;
   }

   return iFirst;
}

/*--------------------------------------------------------------------*/

/* Return the least common multiple of positive integers iFirst and
   iSecond. */

int lcm(int iFirst, int iSecond)
{
   return (iFirst / gcd(iFirst, iSecond)) * iSecond;
}