FEOF(3) Linux Programmer's Manual FEOF(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 clear- err function. The function fileno examines the argument stream and returns its integer descriptor.

ERRORS

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

SEE ALSO

open, stdio,


STANDARDS

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

BSD MANPAGE 29 November 1993 1


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