Store an int in a char array?

Question

I want to store a 4-byte int in a char array... such that the first 4 locations of the char array are the 4 bytes of the int.

Then, I want to pull the int back out o

Answer 1

union value {
   int i;
   char bytes[sizof(int)];
};

value v;
v.i = 2;

char* bytes = v.bytes;