C program to demonstrate Pointer to variable:
void p2a(int *);
void main()
{
int x=10, *a,**b;
int arr[5];
//pointer to variable
a=&x;
b=&a;
printf("\n\n<<>>\n");
printf("\nvalue of x=%d",x);
printf("\nvalue of x using pointer(a) =%d",*a);
printf("\nvalue of x using pointer to pointer(b) =%d\n",**b);
printf("\naddress of x=%u",&x);
printf("\naddress of x=%u",a);
printf("\naddress of x=%u",*b);
printf("\naddress of a=%u",&a);
printf("\naddress of a=%u",b);
printf("\naddress of b=%u",&b);
//pointer to array
printf("\n \n\n<<>>\n");
for (int i=0; i<5; i++)
{printf("\nEnter %d th element of array\t",i);
scanf("%d",&arr[i]);
}
p2a(&arr[0]);
}
void p2a(int *y)
{
printf("\n printing array element using array\n");
for (int i=0;i<5;i++)
{
printf("\n %d",*y);
y++;
}
getch();
}
OUT PUT
