No. use utf8; just means UTF-8 is used in the source code (both in string literals or identifiers). But even use feature qw( unicode_strings ); doesn't help here.

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

In reply to Re^3: Memory leak in unicode substitution by choroba
in thread Memory leak in unicode substitution by am12345

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