On Fri, Apr 02, 2004 at 07:18:25AM -1000, Beau E. Cox wrote: > sub to_upper > { > # point to passed arg or caller's $_ > my $arg = $_[0] ? \$_[0] : \$_;
my $arg = @_ ? \$_[0] : \$_; > # modify in place > $$arg = uc $$arg; > } $_ = "Leave me alone!"; $s = "0"; to_upper $s; -- Paul Johnson - [EMAIL PROTECTED] http://www.pjcj.net -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>