NAME
   Tie::Hash::StructKeyed - use structures like hashes and arrays as keys
   to a hash

SYNOPSIS
      use Tie::Hash::StructKeyed;
      tie %hash,  'Tie::Hash::StructKeyed';

      $hash{[1,2,3]} = 'Keyed by listref';

      my $h = { one=>1, two=>2 };
      $hash{$h}      = 'Keyed by hashref';

DESCRIPTION
   Tie::Hash::StructKeyed ties a hash so that you can use arrays, hashes or
   complex structures as the key of the hash.

NOTE
   The current implementation uses YAML to generate the hash-key for the
   structure. This is possibly the easiest way to get a powerful and
   flexible key-hashing behaviour.

   It does mean that the behaviour for objects is undefined: Two objects
   with the same representation will hash the same. The same object, after
   an internal state change may hash differently. Behaviour of objects as
   keys (or as part of a key) is subject to change in future versions.

AUTHOR
   osfameron - [email protected]

VERSION
   Version 0.03 Apr 14 2005

    This program is free software; you can redistribute it
    and/or modify it under the same terms as Perl itself.

SEE ALSO
   perl perltie

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