FERROR(3) Linux Programmer's Manual FERROR(3)NAME
clearerr, feof, ferror, fileno - check and reset stream status
SYNOPSIS
#include <stdio.h>
void clearerr(FILE *stream);
int feof(FILE *stream);
int ferror(FILE *stream);
int fileno(FILE *stream);
DESCRIPTION
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 integer descriptor.
For non-locking counterparts, see unlocked_stdio(3).
ERRORS
These functions should not fail and do not set the external variable errno. (However, in case fileno detects that its argument is not a
valid stream, it must return -1 and set errno to EBADF.)
CONFORMING TO
The functions clearerr, feof, and ferror conform to X3.159-1989 (``ANSI C'').
SEE ALSO open(2), unlocked_stdio(3), stdio(3)
2001-10-16 FERROR(3)
Check Out this Related Man Page
FERROR(3) Linux Programmer's Manual FERROR(3)NAME
clearerr, feof, ferror, fileno - check and reset stream status
SYNOPSIS
#include <stdio.h>
void clearerr(FILE *stream);
int feof(FILE *stream);
int ferror(FILE *stream);
int fileno(FILE *stream);
DESCRIPTION
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 integer descriptor.
For non-locking counterparts, see unlocked_stdio(3).
ERRORS
These functions should not fail and do not set the external variable errno. (However, in case fileno detects that its argument is not a
valid stream, it must return -1 and set errno to EBADF.)
CONFORMING TO
The functions clearerr, feof, and ferror conform to X3.159-1989 (``ANSI C'').
SEE ALSO open(2), unlocked_stdio(3), stdio(3)
2001-10-16 FERROR(3)
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