MirOS Manual: clearerr(3), feof(3), ferror(3), fileno(3)

FERROR(3)                  BSD 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 point-
     ed to by stream, returning non-zero if it is set. The end-of-file indica-
     tor 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 in-
     teger file descriptor.

ERRORS

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

STANDARDS

     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").

MirOS BSD #10-current           April 19, 1994                               1

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