#include <stdio.h>
#include "gm.h"
void	printres(char *,DEC *);
void main(void);

void main()
{
	DECP	x, y, z;
	DEC	*p;
	char	s[40];

	do  {
		printf(" First number (x) :  ");
		scanf("%s", s);
		p = ConvAsciiToDecimal(x, s);
	} while (!p);
	do  {
		printf("Second number (y) :  ");
		scanf("%s", s);
		p = ConvAsciiToDecimal(y, s);
	} while (!p);
	
	printres("x = ", x);
	printres("y = ", y);
	p = AddDecimal(z, x, y);
	printres("x + y = ", p);
	p = SubtractDecimal(z, x, y);
	printres("x - y = ", p);
	p = MultiplyDecimal(z, x, y);
	printres("x * y = ", p);
	p = DivideDecimal(z, x, y);
	printres("x / y = ", p);
	p = MultiplyDecimalAndRound(z, x, y, 2);
	printres("x * y (rounded) = ", p);
	p = MultiplyDecimalAndTruncate(z, x, y, 2);
	printres("x * y (truncated) = ", p);
	p = DivideDecimalAndRound(z, x, y, 2);
	printres("x / y (rounded) = ", p);
	p = DivideDecimalAndTruncate(z, x, y, 2);
	printres("x / y (truncated) = ", p);
}

void	printres(str, pd)
char	*str;
DEC	*pd;
{
	char	sd[22];

	printf("%20s", str);
	if (pd)  {
		ConvDecimalToAscii(sd, pd);
		printf("%s\n", sd);
	}
	else
		printf("undefined\n");
}