Clear questions and runnable code get the best and fastest answer |
|
PerlMonks |
Re^2: shift vs @_by shmem (Chancellor) |
on Oct 02, 2006 at 23:15 UTC ( [id://575973]=note: print w/replies, xml ) | Need Help?? |
just to prevent a perception of your statement as dogmatic -
The most important thing though, is to unpack them at the start of the subroutine and to avoid accessing them directly as $_[0], $_[1] etc. - in most cases, yes. Operating directly on $_[0] is always fine if you know what you are doing, and why, e.g. the sub and the caller are designed that way to avoid costly copying. Whether in such cases a reference should be passed in the first place is another story. But then, $_[0] is a reference already... --shmem _($_=" "x(1<<5)."?\n".q·/)Oo. G°\ / /\_¯/(q / ---------------------------- \__(m.====·.(_("always off the crowd"))."· ");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}
In Section
Seekers of Perl Wisdom
|
|