FERROR(3) Library Routines FERROR(3)
clearerr, feof, ferror, fileno - check and reset stream status
void clearerr (FILE *stream);
int feof (FILE *stream);
int ferror (FILE *stream);
int fileno (FILE *stream);
The function clearerr clears the end-of-file and error indicators for
the stream pointed to by stream.
The function feof tests the end-of-file indicator for the stream
pointed to by stream, returning non-zero if it is set. The end-of-file
indicator can only be cleared by the function clearerr.
The function ferror tests the error indicator for the stream pointed to
by stream, returning non-zero if it is set. The error indicator can
only be reset by the clearerr function.
The function fileno examines the argument stream and returns its inte-
These functions should not fail and do not set the external variable
The functions clearerr, feof, and ferror conform to ANSI/C.
GNO 15 September 1997 FERROR(3)
Man(1) output converted with