/* solution-1.c
   Illustrates: printf, fflush, stdin, stdout
   function prototypes
   parameter passing
   char * type for strings

*/

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

void fatal( char * msg );

int main( )
{
	int x,y;

	printf("Hello World: Enter two small positive numbers for x and y: ");
	fflush(stdout); /* needed because output streams are buffered */

	if ( scanf("%d %d", &x, &y) < 2 )
		fatal("One or more bad inputs for x and y. Program exiting");

	printf("\nYou entered %d for x and %d for y\n", x,y);

	return 0;

}

void fatal( char * msg )
{
	printf("\n%s\n", msg );
	exit(EXIT_FAILURE);

}