@c file-io.cc
-*- texinfo -*-
@deftypefn {Built-in Function} {} ferror (@var{fid})
Return 1 if an error condition has been encountered for a given file
and 0 otherwise.  Note that it will only return 1 if an error has
already been encountered, not if the next operation will result in an
error condition.
@end deftypefn