What is an abstract base class

Assignment Help C/C++ Programming

Reference no: EM13757474

1.a) Suppose class Y is derived from class X. Each class declares a constructor and a destructor. Class Y has a string member object that has a constructor and destructor. In what order do the three constructors and destructors run when instances of class Y are created and destroyed?

b) Should X's destructor be declared virtual? Why or why not, and what difference would it make?

2. What is a pure virtual function? Why would you define a pure virtual function? Give an example of a pure virtual function.

3. What is an abstract base class? What does it do? Why would you make a class abstract?

4. What are the advantages of using an stl::string to hold character data vs. a dynamic char array?

Reference no: EM13757474

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