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Postings from February 2013
On Tue, Feb 05, 2013 at 05:33:02PM -0800, Jim Avera wrote:
> Not saying this is a bug, but it seems wrong to not permit
> STDIN to be closed:
>
> perl -we 'close STDIN; open my $fh,">/dev/null";'
> Filehandle STDIN reopened as $fh only for output at -e line 1.
>
> It sounds like Perl implicitly re-opens STDIN when fd 0 gets
> re-used for something else. It might be better to not complain
> about this but die later if the handle STDIN is ever actually
> opened and the fd does not end up being zero.
Note that the warning is a bit misleading. It's really trying to say that
$fh has been opened with the file descriptor normally associated with
STDIN (i.e. fd 0), rather than saying that the perl filehandle STDIN has
been re-opened. The perl handle STDIN is still closed (for both reading
and writing).
--
Indomitable in retreat, invincible in advance, insufferable in victory
-- Churchill on Montgomery
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