# vi: set ts=4 sw=4 ht=4 et :
package perl5i::1::HASH;
use 5.010;

use strict;
use warnings;
require Carp;

sub flip {
    Carp::croak("Can't flip hash with references as values")
        if grep { ref } values %{$_[0]};

    my %flipped = reverse %{$_[0]};

    return wantarray ? %flipped : \%flipped;
}

sub merge {
    require Hash::Merge::Simple;
    my $merged = Hash::Merge::Simple::merge(@_);

    return wantarray ? %$merged : $merged;
}

sub print {
    my $hash = shift;
    print join(" ", map { "$_ => $hash->{$_}" } keys %$hash);
}

sub say {
    my $hash = shift;
    print join(" ", map { "$_ => $hash->{$_}" } keys %$hash), "\n";
}

1;