Or maybe pass a reference in the first place (making more obvious that you expect $var to be changed):

sub test {
  my ($val) = @_;
  $$val = "new_value";
}

{
   my $var = "old value";
   print("$var\n");
   test(\$var);
   print("$var\n");
}

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In reply to Re^2: Return Value in Subroutine by citromatik
in thread Return Value in Subroutine by rose

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