NAME    [Toc]    [Back]

     clearerr, feof, ferror, fileno - check and reset stream status

SYNOPSIS    [Toc]    [Back]

     #include <stdio.h>

     void
     clearerr(FILE *stream);

     int
     feof(FILE *stream);

     int
     ferror(FILE *stream);

     int
     fileno(FILE *stream);

DESCRIPTION    [Toc]    [Back]

     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 endof-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
 file descriptor.

ERRORS    [Toc]    [Back]

     These  functions should not fail and do not set the external
variable
     errno.

SEE ALSO    [Toc]    [Back]

     open(2), stdio(3)

STANDARDS    [Toc]    [Back]

     The functions clearerr(), feof(), and  ferror()  conform  to
ANSI
     X3.159-1989 (``ANSI C'').  The function fileno() conforms to
IEEE Std
     1003.1-1990 (``POSIX'').

OpenBSD     3.6                          April      19,      1994