ferror(3S) ferror(3S)
NAME
ferror, feof, clearerr, fileno - stream status inquiries
SYNOPSIS
#include <stdio.h>
int ferror(FILE *stream);
int feof(FILE *stream);
void clearerr(FILE *stream);
int fileno(FILE *stream);
DESCRIPTION
ferror returns non-zero when an I/O error has previously
occurred reading from or writing to the named stream [see
intro(3)], otherwise zero.
feof returns non-zero when EOF has previously been detected
reading the named input stream, otherwise zero.
clearerr resets the error indicator and EOF indicator to zero
on the named stream.
fileno returns the integer file descriptor associated with the
named stream [see open(2)].
REFERENCES
fopen(3S), open(2), stdio(3S)
Copyright 1994 Novell, Inc. Page 1