C/Pointer/Pointer Long
What"s the pointer
#include <stdio.h>
void main()
{
long num1 = 0;
long num2 = 0;
long *pnum = NULL;
pnum = &num1; /* Get num1"s address */
*pnum = 2; /* assign 2 to num1 */
++num2; /* Increment num2 */
num2 += *pnum; /* Add num1 to num2 */
pnum = &num2; /* Get address of num2 */
++*pnum; /* Increment num2 indirectly */
printf ("\nnum1 = %ld num2 = %ld *pnum = %ld *pnum + num2 = %ld\n",
num1, num2, *pnum, *pnum + num2);
}