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=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,c370342fe303517b X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!news4.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!wns14feed!worldnet.att.net!attbi_s71.POSTED!53ab2750!not-for-mail From: "Jeffrey R. Carter" User-Agent: Thunderbird 1.5.0.9 (Windows/20061207) MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: C Interface example References: <1170516037.435847.326440@p10g2000cwp.googlegroups.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Message-ID: NNTP-Posting-Host: 12.201.97.213 X-Complaints-To: abuse@mchsi.com X-Trace: attbi_s71 1170789519 12.201.97.213 (Tue, 06 Feb 2007 19:18:39 GMT) NNTP-Posting-Date: Tue, 06 Feb 2007 19:18:39 GMT Organization: AT&T ASP.att.net Date: Tue, 06 Feb 2007 19:18:39 GMT Xref: g2news2.google.com comp.lang.ada:9034 Date: 2007-02-06T19:18:39+00:00 List-Id: Randy Brukardt wrote: > > Anyway, the point is that if you just drop the result on the floor, the Ada > compiler might be allowed to omit the call, too. So it is always best to use > the result somehow. In this case, test it for null and do something > explicit: OK. You're probably right, but I thought the compiler had to be able to determine that there are no side effects from the call to do this, and could never determine that for an imported subprogram. -- Jeff Carter "Pray that there's intelligent life somewhere up in space, 'cause there's bugger all down here on earth." Monty Python's Meaning of Life 61