#include <stdio.h> int main(){   int a;   int b;   int *d;   int *e;   d = &a;   e = &b;   a = 12;   b = 34;   printf("%d\n", *d);   printf("%d\n", *e);   printf("%d\n", d == e);   printf("%d\n", d != e);   d = e;   printf("%d\n", d == e);   printf("%d\n", d != e);    return 0;} /* vim: set expandtab ts=4 sw=3 sts=3 tw=80 :*/