From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.5-pre1 (2020-06-20) on ip-172-31-74-118.ec2.internal X-Spam-Level: X-Spam-Status: No, score=-1.9 required=3.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.5-pre1 Path: eternal-september.org!reader02.eternal-september.org!aioe.org!JUN8/iIzeA71QWaIWFKODA.user.gioia.aioe.org.POSTED!not-for-mail From: "Luke A. Guest" Newsgroups: comp.lang.ada Subject: Re: calling function but ignoring results Date: Wed, 30 Jun 2021 11:26:30 +0100 Organization: Aioe.org NNTP Server Message-ID: References: <69a59fdc-72bb-4202-99fc-d776530de653n@googlegroups.com> NNTP-Posting-Host: JUN8/iIzeA71QWaIWFKODA.user.gioia.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@aioe.org User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 Content-Language: en-GB X-Notice: Filtered by postfilter v. 0.9.2 Xref: reader02.eternal-september.org comp.lang.ada:62305 List-Id: On 29/06/2021 20:25, Matt Borchers wrote: > It is not very often that ignoring a function result is okay, but I have run across many instances of the following block structure in code over the years: > > declare > dont_care : BOOLEAN; > begin > dont_care := foo( x, y ); > end; declare Dont_Care : constant Boolean := foo (x, y); -- Uppercase is so pascal! pragma Unused (Dont_Care); -- GNAT specific begin null; end; I would put into a procedure, especially if it's a binding to C.