/* What is a pointer */
#include<stdio.h>

int main()
{
	int x1 ;
	int* ptr1 ;

	x1 = 100 ;
	printf("x1 value is %d\n" , x1 );
	ptr1 = &x1 ;
	printf("%p \n" , ptr1 );
	*ptr1 = 200 ;
	printf("x1 value is %d\n" , x1 );
	//A pointer has to be of some type. If we increment by 1 then then
	//the pointer address is incremented by 4
	ptr1 = ptr1 + 1 ;
	printf("%p\n" , ptr1 );


	//Not a legal memory location
	//ptr1 = ptr1 + 1000000 ;
	//*ptr1 = 300 ;
}