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Newsgroups: comp.lang.ada
Date: Fri, 1 Jul 2016 12:50:39 -0700 (PDT)
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Subject: Re: Generic Embedded List Nodes
From: brbarkstrom@gmail.com
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Xref: news.eternal-september.org comp.lang.ada:30996
Date: 2016-07-01T12:50:39-07:00
List-Id: <comp.lang.ada>

Another suggestion is to add a numerical index to each node, as well as some
identifier (maybe a string or some other suitable type), and use a hash function
to calculate the index from the identifier.  Assuming you also use Ada access
variable to link the nodes together, this might be a useful way to implement
the type of design you seem to have in mind.  Linkages in a triply linked
list (see Knuth, Vol I index) can be handled this way, so you can have 
hierarchical structures.

Bruce B.