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=0.2 required=5.0 tests=BAYES_00,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 101deb,87f6968ed41c9df1 X-Google-Attributes: gid101deb,public X-Google-Thread: f43e6,5ac12f5a60b1bfe X-Google-Attributes: gidf43e6,public X-Google-Thread: 103376,5ac12f5a60b1bfe X-Google-Attributes: gid103376,public From: dwnoon@ibm.net Subject: Re: Multiple reasons for failure of Ariane 5 (was: Re: Ariane 5 - not an exception?) Date: 1996/08/15 Message-ID: <4uvqos$iv4@news-s01.ny.us.ibm.net>#1/1 X-Deja-AN: 174396431 references: <4ta0iu$kks@goanna.cs.rmit.edu.au> <4u538f$9q6@hacgate2.hac.com> <4u6723$kp2@piglet.cc.uic.edu> <4uibvh$1p76@news-s01.ny.us.ibm.net> reply-to: dwnoon@ibm.net newsgroups: comp.software-eng,comp.lang.ada,comp.lang.pl1 Date: 1996-08-15T00:00:00+00:00 List-Id: In , dewar@cs.nyu.edu (Robert Dewar) writes: >To compete with OOCOBOL, you clearly need a language with powerful >abstraction facilities, and it was really that that I was thinking >about. Type abstraction, type extension, inheritance, polymorphism >and strong typing with named types seem pretty essential these days. >As I say, for all I know there is a wonderful OO-PL/I available >that I am unfamiliar with :-) PL/I has had type definitions for a few years now. You no longer need to kludge using LIKE. It also has had enumerations, etc., for a few years too. These first appeared under OS/2, but the Windows NT compiler has them too, as does the latest mainframe compiler. The latest release of PL/I has OO constructs. However, IBM has not released the documentation on them, so nobody outside of Santa Teresa labs has much experience with it. Perhaps Peter Elderon might like to let a few cats out of the bag in this newsgroup. Regards Dave