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=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail From: Simon Wright Newsgroups: comp.lang.ada Subject: Re: How to get Ada to ?cross the chasm?? Date: Fri, 04 May 2018 08:15:02 +0100 Organization: A noiseless patient Spider Message-ID: References: <1c73f159-eae4-4ae7-a348-03964b007197@googlegroups.com> <87k1su7nag.fsf@nightsong.com> <87po2la2qt.fsf@nightsong.com> <87in8buttb.fsf@jacob-sparre.dk> <87wowqpowu.fsf@nightsong.com> <16406268-83df-4564-8855-9bd0fe9caac0@googlegroups.com> <87o9i2pkcr.fsf@nightsong.com> <87in88m43h.fsf@nightsong.com> <87efiuope8.fsf@nightsong.com> <322f9b26-01de-4753-bb50-6ef2f3d993d8@googlegroups.com> <87a7th9pd1.fsf@nightsong.com> <87h8no1nli.fsf@nightsong.com> <874ljo1hvy.fsf@nightsong.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: reader02.eternal-september.org; posting-host="25c73b1301d872a4ef34651acedb48a8"; logging-data="19476"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18nFTgSq67yL/F5sup7nrXzDX+JCKW31ks=" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (darwin) Cancel-Lock: sha1:GezTkqrMC5/gcjN5bDMApAwh750= sha1:uVzsrpvhz3d/mWNSTs1GC2HiThQ= Xref: reader02.eternal-september.org comp.lang.ada:51965 Date: 2018-05-04T08:15:02+01:00 List-Id: "Randy Brukardt" writes: > All of the Ada containers have "cursors", which serve the reference > function. Tree cursors are defined to continue to designate an element even if it gets moved in the tree (bcause of insertion/deletion of other elements). Is this true of all cursors? (I may have got muddled by the "tampering" issue).