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Waveform Audio File Format  |  1993-10-22  |  250.0 KB  |  1 channel  |  11,025 sample rate  |  23 seconds
Transcription: These lines insert the phoneNum object that is pointed to by entry into the first position of the list. They are executed if the return value of the function prev is the null pointer. Notice that the pointer first, which is a data member of this list object, is updated. The pointer link, which is a data member of the phoneNum object, is also updated.