#include <stdio.h>

int main(void)
{
   int a = 1, b = 2, *ap, *bp;
   char c = 'c', d = 'd', *cp, *dp;
   float f = 1.1, g = 2.2, *fp, *gp;

   ap = &a;
   bp = &b;
   cp = &c;
   dp = &d;
   fp = &f;
   gp = &g;

   *fp = &gp;
   printf("%d %d %p %p\n", a, b, ap, bp);
   printf("%c %c %p %p\n", c, d, cp, dp);
   printf("%.2f %.2f %p %p\n", f, g, ap, bp);
   printf("\n");

   *fp = 1.1; //reset
   &gp = &fp;
   printf("%d %d %p %p\n", a, b, ap, bp);
   printf("%c %c %p %p\n", c, d, cp, dp);
   printf("%.2f %.2f %p %p\n", f, g, ap, bp);
   printf("\n");

   b = *a;
   printf("%d %d %p %p\n", a, b, ap, bp);
   printf("%c %c %p %p\n", c, d, cp, dp);
   printf("%.2f %.2f %p %p\n", f, g, ap, bp);
   printf("\n");

   b = &a;
   printf("%d %d %p %p\n", a, b, ap, bp);
   printf("%c %c %p %p\n", c, d, cp, dp);
   printf("%.2f %.2f %p %p\n", f, g, ap, bp);
   printf("\n");

   return 0;
}