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Chapter 15: Problem 2
A member function of a class that is not implemented is called a(n) ______ function.
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Problems of ambiguity can arise when ______ inheritance is being used.
Write a C++ class that has an array of integers as a member variable, a pure virtual member function bool compare (int x, int y) \(=0\) that compares its two parameters and returns a boolean value, and a member function votd sort () that uses the comparison defined by the compare virtual function to sort the array. The sort function will swap a pair of array elements a \([\mathrm{k}]\) and a \([\mathrm{f}]\) if \\[ \text { compare }(a[k], a[j]) \\] returns true. Explain how you can use this class to produce classes that sort arrays in ascending order and descending order.
The ability of code to execute differently depending on the type of data is called ______.
When virtual inheritance is used, the virtual base class must be initialized by the most ______ class.
Static binding takes place at ______ time.
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