Sams Teach Yourself C++ in 21 Days

Answers 837

D

11: int * pVar = new int (5);

12: std::cout << “The value of *pVar is: “ << *pVar ;

13: delete pVar;

14: }

8.MakeCatreturns a reference to the CATcreated on the free store. There is no way to

free that memory, and this produces a memory leak.

9. The following is one possible answer:
   1: #include
   2: using namespace std;
   3: class CAT
   4: {
   5: public:
   6: CAT(int age) { itsAge = age; }
   7: ~CAT(){}
   8: int GetAge() const { return itsAge;}
   9: private:
   10: int itsAge;
   11: };
   12:
   13: CAT MakeCat(int age);
   14: int main()
   15: {
   16: int age = 7;
   17: CAT Boots = MakeCat(age);
   18: cout << “Boots is “ << Boots->GetAge() << “ years old”;
   19: delete Boots;
   20: return 0;
   21: }
   22:
   23: CAT * MakeCat(int age)
   24: {
   25: return new CAT(age);
   26: }

Day 10

Quiz

1. Overloaded member functions are functions in a class that share a name but differ
   in the number or type of their parameters.


2. A definition sets aside memory; a declaration does not. Almost all declarations are
   definitions; the major exceptions are class declarations, function prototypes, and
   typedefstatements.


3. Whenever a temporary copy of an object is created. This also happens every time
   an object is passed by value.

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