/* Example taken from  http://www.ihypress.net/programming/c/prog.php?chap=12&pgm=02
This program accepts two arguments in a specific order: 
	1) an integer number
	2) a double number
and sums them up */
#include <stdio.h>
#include <stdlib.h>

int
main (int argc, char *argv[])  
	
{
int a;
double x, sum;

if (argc == 3)
{
	printf("The arguments supplied are %s and %s.\n", argv[1], argv[2]);	
	a = atoi (argv[1]); /* convert string to integer */
	x = atof (argv[2]); /* convert string to double */
	sum = a + x;
	printf ("The sum is: %f\n", sum);
}
else	
	if (argc > 3)
		printf ("ERROR: Too many arguments supplied.\n");
	else
		printf ("ERROR: One argument expected.\n");

return (0);
}