Swapping objects using pointers

Question

I\'m trying to swap objects for a homework problem that uses void pointers to swap objects. The declaration of my function has to be:

void swap(void *a, voi         


        

Answer 1

I had a question similar to this for my C course. I think memcopy is probably best but you can also try this:

    typedef unsigned char * ucp;

    void swap(void *a, void *b, int size){
      ucp c=(ucp)a;
      ucp d=(ucp)b;
      for(int i=0; i

Basically what this does is cast both pointers to an unsigned char pointer type. Then you increment the pointer, which in the case of an unsigned char, increments one BYTE at a time. Then what you're doing is basically copying the contents of each byte at a time in memory. If anyone wants to correct or clarify on this I would appreciate it too.