Object-Oriented Programming Languages and Event-Driven Programming by Dorian P. Yeager

Author:Dorian P. Yeager [Dorian P. Yeager]
Language: eng
Format: epub
ISBN: 9781936420377
Publisher: Mercury Learning and Information LLC
Published: 2014-03-15T04:00:00+00:00

Consider the following code, in which A is an indirect base class of D in two different ways: class A {

public:

A(char c=’D’) {cout << c << “’s A “;}

};

class B: public A {

public:

B(): A(‘B’) {cout << “B “;}

};

class C: public A {

public:

C(): A(‘C’) {cout << “C “;}

};

class D: public B, C {

public:

D() { cout << “D\n”;}

};

What is output as a side effect of instantiating a D object? Explain how the output occurs.

Now make each of B and C use virtual inheritance from A. What is output now? Explain.

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