Re^7: check possible combination of sum using given array

> isn’t the same

Even return and return undef aren't the same.

sub plain { return }
sub Undef { return undef }

my @empty    = plain();
my @nonempty = Undef();
die 'Different' unless @empty == @nonempty;
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map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

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Re^8: check possible combination of sum using given array by karlgoethebier (Abbot) on Jul 11, 2019 at 18:02 UTC
Wow! (No kidding). This is jesuitisch raffiniert. I wonder what might happen when it’s `sub kgb {undef}`. 🤪 Probably nothing special. Works as designed. Best regards, Karl «The Crux of the Biscuit is the Apostrophe» `perl -MCrypt::CBC -E 'say Crypt::CBC->new(-key=>'kgb',-cipher=>"Blowfish")->decrypt_hex($ENV{KARL});'`Help J	[reply] [d/l] [select]