FERROR(3S) FERROR(3S)
NAME
feof, ferror, clearerr, fileno - stream status inquiries
SYNOPSIS
#include <stdio.h>
feof(stream)
FILE *stream;
ferror(stream)
FILE *stream
clearerr(stream)
FILE *stream
fileno(stream)
FILE *stream;
DESCRIPTION
Feof returns non-zero when end of file is read on the named
input stream, otherwise zero.
Ferror returns non-zero when an error has occurred reading
or writing the named stream, otherwise zero. Unless cleared
by clearerr, the error indication lasts until the stream is
closed.
Clrerr resets the error indication on the named stream.
Fileno returns the integer file descriptor associated with
the stream, see open(2).
These functions are implemented as macros; they cannot be
redeclared.
SEE ALSO
fopen(3), open(2)