Question

Is there a way to check if the compiler generates equivalent code for iteration using pointers and iteration using indexing???
i.e. for the codes

  void f1(char v[])
  {
       for(int i=0; v[i]!=0;i++) use(v[i]);
  }

and

 void f1(char v[])
  {
       for(char *p = v; *p!=0; p++) use(*p);
  }

I use microsoft visual C++ as my compiler……

Please help…..

Answer 1

1. Put a breakpoint in the function.
2. Verify that you compile in Release (otherwise it will surely be different) with debug information turned on.
3. Run.
4. Open the Assembly window to see the generated assembly (usually Alt+8).