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=-0.5 required=3.0 tests=BAYES_05 autolearn=ham autolearn_force=no version=3.4.5-pre1 X-Received: by 2002:a0c:c342:: with SMTP id j2mr788094qvi.41.1616435694917; Mon, 22 Mar 2021 10:54:54 -0700 (PDT) X-Received: by 2002:a25:2484:: with SMTP id k126mr973246ybk.165.1616435694708; Mon, 22 Mar 2021 10:54:54 -0700 (PDT) Path: eternal-september.org!reader02.eternal-september.org!news.uzoreto.com!news-out.netnews.com!news.alt.net!fdc3.netnews.com!peer03.ams1!peer.ams1.xlned.com!news.xlned.com!peer01.iad!feed-me.highwinds-media.com!news.highwinds-media.com!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Mon, 22 Mar 2021 10:54:54 -0700 (PDT) In-Reply-To: <23dcce3e-0db1-4417-a5d1-a05f03f74464n@googlegroups.com> Injection-Info: google-groups.googlegroups.com; posting-host=2601:3c3:401:f550:9ee:b41e:1376:69a6; posting-account=JSxOkAoAAADa00TJoz2WZ_46XrZCdXeS NNTP-Posting-Host: 2601:3c3:401:f550:9ee:b41e:1376:69a6 References: <07a56dcc-9e17-49b2-a980-3a5a2d265cedn@googlegroups.com> <23dcce3e-0db1-4417-a5d1-a05f03f74464n@googlegroups.com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: Subject: Re: Performance of records with variant parts From: John Perry Injection-Date: Mon, 22 Mar 2021 17:54:54 +0000 Content-Type: text/plain; charset="UTF-8" X-Received-Bytes: 1603 Xref: reader02.eternal-september.org comp.lang.ada:61634 List-Id: On Monday, March 22, 2021 at 12:49:59 PM UTC-5, John Perry wrote: > On Monday, March 22, 2021 at 12:32:39 PM UTC-5, Jeffrey R. Carter wrote: > > 1. Why is Surface a discriminant? > That's a good question. I don't remember why I made it a discriminant. That's easily fixed. (...but doesn't affect the performance)