Incrementing pointer not working

Question

I’m trying to increment pointer. I was sure that it is similar to do i+=1 , but I’m getting adress.

#include \"stdafx.h\" 
#include          


        

Answer 1

++ has a higher operator precedence than the pointer dereference operator *.

So what *a++ does is to return the value of i (the old value of *a) before incrementing the pointer value.

After that expression has been evaluated, a now points to something other than the address of i, and the behaviour of a subsequent *a is undefined.

If you want to increment i via the pointer, then use (*a)++;