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Waveform Audio File Format  |  1993-10-22  |  308.5 KB  |  1 channel  |  11,025 sample rate  |  28 seconds
Transcription: It is possible to replace a friend function with a function that is not a friend if the classes provide appropriate support functions. This function multiply has the same effect as the friend function MPY. However, it must call member functions getNum, getDenom, getElement and setElement to access data members of the two classes. The use of a friend function eliminates the overhead of calling such member functions.