Questions

1. Type in (or use the online code) for the diamond-shaped hierarchy example in this chapter that uses virtual base classes. Run it as is. Hint: you may want to add explicit destructors with cout statements to trace the destruction sequence:
   1. How many LifeForm subobjects exist for the instance of Centaur?
   2. How many times is the LifeForm constructor (and destructor) invoked? Hint: you may want to place trace statements using cout in each of your constructors and destructor.
   3. Which LifeForm constructor would be invoked if the constructor selections for LifeForm in the member initialization list of the Centaur constructors were omitted?
2. Now, remove the keyword virtual from the base class list of Person and Horse (that is, LifeForm will no longer be a virtual base class of Person and Horse. LifeForm will just be a typical base class of Person and Horse.) Also, remove the LifeForm constructor selection from the member initialization list of the Centaur constructors. Now, instantiate...