What are the rules for casting pointers in C?

Question

K&R doesn\'t go over it, but they use it. I tried seeing how it\'d work by writing an example program, but it didn\'t go so well:

#include 

        

Answer 1

You have a pointer to a char. So as your system knows, on that memory address there is a char value on sizeof(char) space. When you cast it up to int*, you will work with data of sizeof(int), so you will print your char and some memory-garbage after it as an integer.