/* learning pointers */

#include <stdio.h>

void swap (char *x, char *y);		//swap takes 2 pointers to chars

int main ( void )
{
	char a =  'a';
	char b =  'b';
	swap(&a, &b);			//pass the address of both chars to swap 
	printf("%c, %c\n", a, b);	//(effectively making them the equiv of a pointer)
	return 0;
}

void swap (char *x, char *y)
{
	char temp;
	
	temp = *x; 			// temp is assigned the value in which x points to
	*x = *y;   			// the value x points to is assigned to the value y points to
	*y = temp; 			// the value y points to is assigned the value of temp
}