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=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,b7dc7082d345b1e1 X-Google-Attributes: gid103376,public From: Brian Rogoff Subject: Re: package dependence question Date: 2000/05/30 Message-ID: #1/1 X-Deja-AN: 629131138 References: <8gt19i$1cm8@r02n01.cac.psu.edu> Content-Type: TEXT/PLAIN; charset=US-ASCII X-Trace: nntp1.ba.best.com 959714093 213 bpr@206.184.139.136 MIME-Version: 1.0 Newsgroups: comp.lang.ada Date: 2000-05-30T00:00:00+00:00 List-Id: On Tue, 30 May 2000, Robert A Duff wrote: > Carl Banks writes: > > > My question is, is there a better way to define such a doubly- > > traversible tree, so that different node types need not be defined in > > the same package? > > There is no ideal solution to this problem in Ada 95 (although the ARG > is currently working on a language modification that will solve the > problem nicely). Would you be willing to elaborate further? Is this a variant of Tucker Taft's "with type" proposal from a few years back? -- Brian