This is almost the approach I'd take; except to make it reference-safe, I'd put it like this: 
sub merge {
    my %hash;
    @hash{ @_ } = @_;
    @hash{ sort keys %hash };
}

[download]

Update: last line was originally map $hash{ $_ }, sort keys %hash;

In reply to Re^2: A C-like brain in a Perl-like world by Aristotle
in thread A C-like brain in a Perl-like world by cyberscribe

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