/*Call By Value: passing an entire structure to a function.*/

#include <stdio.h>

// define a structure template
struct demo{
	int a, b;
};

void f1(int x, struct demo parm)
{
        x += 10;
        printf("F1: x = %d\n", x);

        parm.a = 1; parm.b = 2;
        printf("F1: parm.a = %d, parm.b = %d\n", parm.a, parm.b);
}

int main(void)
{
	struct demo arg;

	arg.a = 9;
	arg.b = 10;

	f1(arg.a, arg); // passing a structure member arg.a and 
			// the entire structure arg to function f1 

	printf("Main: arg.a = %d arg.b = %d\n", arg.a, arg.b);

	return 0;
}