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$ perl -E 'use POSIX qw(setlocale LC_NUMERIC); say 3.14; setlocale(LC_ +NUMERIC, ""); say 3.14; setlocale(LC_NUMERIC, "C"); say 3.14; setloca +le(LC_NUMERIC, ""); say 3.14; say 3.14 . "";' 3.14 ... 3.14 3,14 3.14
~$ perl -E 'use Gtk2 -init; use POSIX qw(setlocale LC_NUMERIC); say 3. +14; setlocale(LC_NUMERIC, ""); say 3.14; setlocale(LC_NUMERIC, "C"); +say 3.14; setlocale(LC_NUMERIC, ""); say 3.14; say 3.14 . ""; ' 3,14 ... 3.14 3,14 3,14