Changing the object a pointer points to in c++

by

If hero is a pointer you need decide whether to compare the heroes (eg. by name with overloaded operators) or the adresses. So it should be:

if(*activeHero==hero[0])
    {
        *activeHero  =hero[1];
        hero[1]->setFocus();
    }
    else if(*activeHero == hero[1])
    {
        *activeHero = hero[0];
        hero[0]->setFocus();
    }

or it should be

if(activeHero==&hero[0])//address of hero[0]
{
    activeHero  =&hero[1];
    hero[1]->setFocus();
}
else if(activeHero == &hero[1])
{
    activeHero = &hero[0];
    hero[0]->setFocus();
}

More Related Contents:

  1. Dangling Pointers after Destructor is called
  2. How to deal with c-string pointers [closed]
  3. What is array to pointer decay?
  4. What are the barriers to understanding pointers and what can be done to overcome them? [closed]
  5. What is a dangling pointer?
  6. Placement of the asterisk in pointer declarations
  7. Differences between unique_ptr and shared_ptr [duplicate]
  8. How do you pass a member function pointer?
  9. Is passing pointer argument, pass by value in C++?
  10. How to compare pointers?
  11. How are references implemented internally?
  12. conversion of 2D array to pointer-to-pointer
  13. C/C++ int[] vs int* (pointers vs. array notation). What is the difference?
  14. Why are NULL pointers defined differently in C and C++?
  15. Function pointer vs Function reference
  16. What happens to the pointer itself after delete? [duplicate]
  17. Is it legal to compare dangling pointers?
  18. Why not use pointers for everything in C++?
  19. Could I ever want to access the address zero?
  20. How to make an array with a dynamic size? General usage of dynamic arrays (maybe pointers too)? [closed]
  21. Can I Allocate a specific memory address using pointers in c++?
  22. Dereferencing deleted pointers always result in an Access Violation?
  23. Difference between const. pointer and reference?
  24. Is it legal/well-defined C++ to call a non-static method that doesn’t access members through a null pointer?
  25. In C/C++, is char* arrayName[][] a pointer to a pointer to a pointer OR a pointer to a pointer?
  26. Is incrementing a null pointer well-defined?
  27. Use const wherever possible in C++?
  28. Why isn’t operator overloading for pointers allowed to work?
  29. C++ strings: [] vs. *
  30. C++ inserting unique_ptr in map

Leave a Comment