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Waveform Audio File Format  |  1993-10-22  |  271.3 KB  |  1 channel  |  11,025 sample rate  |  25 seconds
Transcription: Since friends are not member functions, they do not have a this pointer. Any object to be accessed by the function must be passed as an argument. Passing the object as an argument can be one of the reasons for using friends. Because this function print is a friend, it can be called with the familiar function call syntax. Compare the calls shown here of the function print and of the function display.