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-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,60e2922351e0e780 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-11-08 01:05:02 PST Path: archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed.stueberl.de!newsr1.ipcore.viaginterkom.de!btnet-peer1!btnet-feed5!btnet!news.btopenworld.com!not-for-mail From: "Martin Dowie" Newsgroups: comp.lang.ada Subject: Re: Clause "with and use" Date: Sat, 8 Nov 2003 09:04:54 +0000 (UTC) Organization: BT Openworld Message-ID: References: news@kiuk0156.chembio.ntnu.no> <3FA777E9.4030605@noplace.com> NNTP-Posting-Host: host81-129-48-51.in-addr.btopenworld.com X-Trace: sparta.btinternet.com 1068282294 17903 81.129.48.51 (8 Nov 2003 09:04:54 GMT) X-Complaints-To: news-complaints@lists.btinternet.com NNTP-Posting-Date: Sat, 8 Nov 2003 09:04:54 +0000 (UTC) X-Newsreader: Microsoft Outlook Express 6.00.2800.1158 X-MSMail-Priority: Normal X-Priority: 3 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Xref: archiver1.google.com comp.lang.ada:2250 Date: 2003-11-08T09:04:54+00:00 List-Id: "Russ" <18k11tm001@sneakemail.com> wrote in message news:bebbba07.0311080022.7066f205@posting.google.com... > > A := B * C; -- would not require an extra copy > > I'm just a bit puzzled as to why you immediately shifted from "+" to > "*". It was really, really late... Nothing sinister! > In any case, am I correct in assuming that AI-318 would eliminate > *both* the copy operation *and* the temporary for matrix addition (as > "+=" would do)? That is, can I use > > A := A + B; -- or > A := B + C; > and avoid both the temporary and the copy operation? That's my reading of it.