Pointers should not be assignable to ints, and vice versa

[derrell]

Currently, this program generates no errors. It should, for pedagogical reasons, err on the two assignments, even though it's not technically illegal in C.

#include <stdio.h>

int main(int argc, char * argv[])
{
 char * p = "hello";
 int i;

 i = p;
 p = i;
 printf("p=%s\n", p);
 return 0;
}