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FERROR(3) Linux Programmer's Manual FERROR(3)


clearerr, feof, ferror, fileno - check and reset stream status


#include <stdio.h> 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 clear- err function. The function fileno examines the argument stream and returns its integer descriptor.


These functions should not fail and do not set the exter- nal variable errno.


open, stdio,


The functions clearerr, feof, and ferror conform to C3.159-1989 (``ANSI C'').

BSD MANPAGE 29 November 1993 1

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file: /Techref/language/ccpp/cref/MAN/ferror.htm, 2KB, , updated: 2021/8/16 11:07, local time: 2022/12/8 17:50,

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