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,FREEMAIL_FROM autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,a00006d3c4735d70 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2004-02-04 07:07:20 PST Path: archiver1.google.com!news2.google.com!news.maxwell.syr.edu!nntp.abs.net!ash.uu.net!spool.news.uu.net!not-for-mail Date: Wed, 04 Feb 2004 10:07:18 -0500 From: Hyman Rosen User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5) Gecko/20031013 Thunderbird/0.3 X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: In-Out Parameters for functions References: <1075390647.405841@master.nyc.kbcfp.com> <1075405582.982776@master.nyc.kbcfp.com> <1075482385.142744@master.nyc.kbcfp.com> <1075732402.294581@master.nyc.kbcfp.com> <1075741279.952497@master.nyc.kbcfp.com> <16nu1099ekujjbpe9dqvs3noi9sdcfja6e@4ax.com> <1075817212.745748@master.nyc.kbcfp.com> <1075824683.769215@master.nyc.kbcfp.com> <1075851506.238480@master.nyc.kbcfp.com> <4020C947.81A6D703@0.0> In-Reply-To: <4020C947.81A6D703@0.0> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Organization: KBC Financial Products Message-ID: <1075907239.138068@master.nyc.kbcfp.com> Cache-Post-Path: master.nyc.kbcfp.com!unknown@carrots.nyc.kbcfp.com X-Cache: nntpcache 3.0.1 (see http://www.nntpcache.org/) NNTP-Posting-Host: 204.253.250.10 X-Trace: 1075907239 10865 204.253.250.10 Xref: archiver1.google.com comp.lang.ada:5229 Date: 2004-02-04T10:07:18-05:00 List-Id: Stuart Palin wrote: > But, it also creates an opportunity for 'smart compilers' to optimize. Notice that if an expression has only one possible value regardless of evaluation order then the compiler can evaluate it in any order it wants, and with the current evaluation rules, it is unwise to write expressions that have more than one possible value based on evaluation order. So no correct existing programs necessarily need to be pessimized by fixing evaluation order.