0ad56eab05
first "tie" the hash variable to this module. Normally, only the keys of the tied hash itself are preserved as references; to use references as keys in hashes-of-hashes, use Tie::RefHash::Nestable, included as part of Tie::RefHash. Note, this module is part of all relevant perl dists, but various CPAN packages are beginning to require bug fixes found in newer versions. |
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