From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=BAYES_00,INVALID_DATE autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,baaf5880437f8d65 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 1994-10-04 14:13:39 PST Newsgroups: comp.lang.ada Path: bga.com!news.sprintlink.net!howland.reston.ans.net!cs.utexas.edu!convex!news.duke.edu!news-feed-1.peachnet.edu!paperboy.wellfleet.com!noc.near.net!inmet!dsd!bobduff From: bobduff@dsd.camb.inmet.com (Bob Duff) Subject: Re: PC/Ada assessment wanted Message-ID: Sender: news@inmet.camb.inmet.com Organization: Intermetrics, Inc. References: <11643.323.uupcb@thcave.bbs.no> Date: Tue, 4 Oct 1994 20:25:32 GMT Date: 1994-10-04T20:25:32+00:00 List-Id: In article <11643.323.uupcb@thcave.bbs.no>, Lew Romney wrote: >2) Object-oriented features; I know Ada83 has inheritable packages, >will 9X have polymorphic packages with methode inheritance? Ada 94 has inheritance and polymorphism. It's based on derived types, not on "polymorphic packages". You can declare a new record type that inherits components from its parent (and something similar for private types). You can declare dispatching subprograms that dispatch according to the type tag of the operand(s). -- Bob Duff bobduff@inmet.com Oak Tree Software, Inc. Ada 9X Mapping/Revision Team (Intermetrics, Inc.)