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Waveform Audio File Format  |  1993-10-20  |  231.9 KB  |  1 channel  |  11,025 sample rate  |  21 seconds
Transcription: You can define an identifier in one file and then use it in another file by declaring it with the keyword, extern. In this example, the identifier A is defined in Program 1. It is declared extern in Program 2. Similarly, B is defined in Program 2 and declared extern in Program 1.