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=-1.1 required=5.0 tests=BAYES_00, PP_MIME_FAKE_ASCII_TEXT autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII X-Google-Thread: 103376,38fc011071df5a27 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-06-05 02:05:07 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!oleane.net!oleane!nnrp.oleane.net!skymaster!nobody From: "Jean-Pierre Rosen" Newsgroups: comp.lang.ada Subject: Re: Ideas for Ada 200X Date: Thu, 5 Jun 2003 10:32:59 +0200 Organization: Adalog Message-ID: <1evmbb.lrl.ln@skymaster> References: <6a90b886.0305262344.1d558079@posting.google.com> <3ED41344.7090105@spam.com> <3ED46D81.FF62C34F@0.0> <3ED46E07.4340CABC@0.0> <3ED4F3FD.A0EF7079@alfred-hilscher.de> <6vWcnTWjF83bD0qjXTWcpA@gbronline.com> <7vfzmr60r5.fsf@vlinux.voxelvision.no> <3EDEA840.6020908@attbi.com> NNTP-Posting-Host: mailhost.axlog.fr X-Trace: s1.read.news.oleane.net 1054803679 27030 195.25.228.57 (5 Jun 2003 09:01:19 GMT) X-Complaints-To: abuse@oleane.net NNTP-Posting-Date: Thu, 5 Jun 2003 09:01:19 +0000 (UTC) X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 Xref: archiver1.google.com comp.lang.ada:38666 Date: 2003-06-05T10:32:59+02:00 List-Id: "Robert I. Eachus" a �crit dans le message news: 3EDEA840.6020908@attbi.com... > The reason that the boolean operations are predefined for arrays is that > it would be very difficult for a compiler to figure out the > optimizations to use bit-wise operations on words otherwise. My memory is that boolean array operations are there because the requirements called for a functionality equivalent to Pascal's sets -- --------------------------------------------------------- J-P. Rosen (rosen@adalog.fr) Visit Adalog's web site at http://www.adalog.fr