clearerr(3C)

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

     The ferror() function returns a non-zero valuewhen an  error
     has previously occurred reading from or writing to the named
     stream (see intro(3)). It returns 0 otherwise.

     The feof() function returns a non-zero value  when  EOF  has
     previously been detected reading the named input stream.  It
     returns 0 otherwise.

     The clearerr() function resets the error indicator  and  EOF
     indicator to 0 on the named stream.

     The fileno() function returns the  integer  file  descriptor
     associated with the named stream; see open(2).

ATTRIBUTES

     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | MT-Level                    | MT-Safe                     |
    |_____________________________|_____________________________|

SEE ALSO

     open(2), intro(3), fopen(3C), stdio(3C), attributes(5)