Array::Virtual - provides disk based arrays via tied hashes

   Copyright (c) 2001 - 2002 Phil Crow <[email protected]>.
   All rights reserved.  This program is free software; you can
   redistribute it and/or modify it under the same terms as Perl itself.

DESCRIPTION
   This module allows the caller to tie an array which will then be stored
   on the disk.  This allows the same data to be used each time a program
   runs without having to manually restore the data.  Note that references
   are not allowed, because they will not reincarnate correctly between
   program invocations.  The rules are similar to hash keys.

INSTALLATION
   perl Makefile.PL
   make
   make test
   make install

REVISION HISTORY
   0.01    Summer 2001 - Initial release.
   0.02    August 2001 - Corrected an offset error in EXISTS function
   0.03    Sept.  2001 - Converted to SDBM which is more widely available
                         Elminated dependence on NDBM file naming conventions
   0.04    April  2002 - Corrected problems with indices outside the current
                         range
                         Added support for negative indices