Labels: text | font | screenshot OCR: The identifier ifp and ofp are file pointers. More explicitly, they are type "pointer to FILE". The rpogram is designed to access two files entered as command line arguments. If there are too few or too many command line arguments, prn_info( ) is invoked to print information about the program and exit( ) is invoked to exit the program. By convention, exit( ) returns a nonzero value when something has gone wrong.
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