Note also that with aliasing of the elements of the special  @_ subroutine arguments array (see perlvar), it's "turtles all the way down:" 

c:\@Work\Perl\monks>perl -wMstrict -MData::Dump -le
"sub going_down { sublevel_1(@_); }
 sub sublevel_1 { sublevel_2(@_); }
 sub sublevel_2 { sublevel_3(@_); }
 sub sublevel_3 { $_[-1] = 'foo'; }
 ;;
 my @ra = qw(a b c d);
 dd \@ra;
 ;;
 going_down(@ra);
 dd \@ra;
"
["a", "b", "c", "d"]

["a", "b", "c", "foo"]

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Give a man a fish:  <%-{-{-{-<

In reply to Re: Array value changing for some reason by AnomalousMonk
in thread Array value changing for some reason by Silt

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