Class Inheritance

Using the foo class from the previous tutorial as a base class, we are going to introduce a new class called fooed that inherits from foo. Here are the two classes without any methods.

class foo {
    public:
        int    m_counter;
        float  m_value;
        char * m_buffer;
};

class fooed : public foo {
    public:
        double m_double;
}; 

As in the previous tutorial, both the class fooed and the structure fooed have exactly the same size of twenty bytes (a double field being eight bytes in length).

 

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