On Nov 30, 2009, at 3:51 PM, Abigail wrote: >>> >> >> I meant to add that this change to sort was added to 5.6.0. So to answer >> your question it was nearly a decade ago :-) > > > Which was the same release where values() returned aliases instead of copies.
Ah, you are right. sort was before that. the oldest perl I have is 5.4.5 which
gives
$ /apps/perl-5.4.5/bin/perl5.00405 -l
my @a = (4,3,2,1);
for my $x (sort @a) { print ++$x; }
print @a;
__END__
2
3
4
5
5432
Graham.
