use v6;
sub swap($a is rw, $b is rw) {
   ($a, $b) = ($b, $a);
}

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Perl 6 - the future is here, just unevenly distributed

In reply to Re: RFC: Idiom for named read-write arguments (aliases) instead of using $_[0] etc by moritz
in thread RFC: Idiom for named read-write arguments (aliases) instead of using $_[0] etc by LanX

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