File: *manpages*,  Node: ferror,  Up: (dir)



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  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(2), stdio(3)

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

BSD MANPAGE              29 November 1993                       1

