http://qs321.pair.com?node_id=742370


in reply to Re^3: Creating an index on a string-collection
in thread Creating an index on a string-collection

It does in  scalar context:
>perl -wMstrict -le "my $s = 'foobar'; print reverse $s, 'zot'; print scalar reverse $s, 'zot'; " zotfoobar tozraboof