Path: utzoo!utgpu!watmath!att!tut.cis.ohio-state.edu!cs.utexas.edu!milano!cadillac!puma!vaughan From: vaughan@puma.cad.mcc.com (Paul Vaughan) Newsgroups: comp.lang.c++ Subject: Map class for partially ordered keys Message-ID: <2239@cadillac.CAD.MCC.COM> Date: 14 Aug 89 20:09:23 GMT Sender: news@cadillac.CAD.MCC.COM Lines: 27 Has anyone implemented a map class that supports inheritance-like lookup for partially ordered keys? For example, given the partial ordering A / \ B C and a map with entries A => 1 B => 2 then you could make the following queries and expect the given results A => 1 B => 2 C => 1 Other queries would result in either a runtime error or a default value. Either hierarchies or general partial orderings (as in Multiple Inheritance) would do at the moment. Paul Vaughan, MCC CAD Program | ARPA: vaughan@mcc.com | Phone: [512] 338-3639 Box 200195, Austin, TX 78720 | UUCP: ...!cs.utexas.edu!milano!cadillac!vaughan