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!news.eternal-september.org!.POSTED!not-for-mail From: "Jeffrey R. Carter" Newsgroups: comp.lang.ada Subject: Re: Community Input for the Maintenance and Revision of the Ada Programming Language Date: Thu, 14 Sep 2017 20:08:39 +0200 Organization: Also freenews.netfront.net; news.tornevall.net; news.eternal-september.org Message-ID: References: <915874b5-52c0-4aa8-9023-82fddedb816f@googlegroups.com> <67345f73-530c-400b-9eb4-63eeb440154c@googlegroups.com> <9a6338d9-83be-4e45-b8b7-edc56e33537f@googlegroups.com> <2deb28e2-f7e8-4461-b8b8-c2c6cf2784aa@googlegroups.com> <5de470d2-aa3d-4c02-ae2b-266c33a289fe@googlegroups.com> <5126ef7a-3324-4e44-b110-5e4838189f5f@googlegroups.com> <3c76c2ed-319f-410c-8dec-6a80a0948c7a@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Thu, 14 Sep 2017 18:08:39 -0000 (UTC) Injection-Info: reader02.eternal-september.org; posting-host="8e8ec4a90253d74a715c3c5124efb802"; logging-data="28133"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+afL+Vhmc7wpjpeUfHmmduaYArIZhCmCU=" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 In-Reply-To: Content-Language: en-US Cancel-Lock: sha1:RP05xl8+Jp655Jd+0VSJq83HjrM= Xref: news.eternal-september.org comp.lang.ada:48134 Date: 2017-09-14T20:08:39+02:00 List-Id: On 09/14/2017 02:30 PM, Alejandro R. Mosteo wrote: > > Then I guess that an in/out parameter of such a type might be unsafe to assign, > in the sense that depending on the actual argument it might succeed or raise. Typically I return them from functions, but I'd think between your knowledge of the discriminants and maybe the 'Constrained attribute you could use them safely. -- Jeff Carter "I'm off to Alaska. If you need me, I'll be at Frozen Tundra 6-9290." Play It Again, Sam 130