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=-0.3 required=5.0 tests=BAYES_00, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!mx02.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: Boeing 787 integer overflow Date: Mon, 4 May 2015 14:17:26 +0200 Organization: cbb software GmbH Message-ID: References: <201505021834588468-rblove@airmailnet> <9f20f713-d65c-471d-ab7c-d314a14fdcd0@googlegroups.com> <3e8a4ac6-b0cd-445d-8e9c-82ce8f7f9fee@googlegroups.com> <535fc0ec-ed85-4f21-8afa-0430e34be383@googlegroups.com> Reply-To: mailbox@dmitry-kazakov.de NNTP-Posting-Host: enOx0b+nfqkc2k+TNpOejg.user.speranza.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@aioe.org User-Agent: 40tude_Dialog/2.0.15.1 X-Notice: Filtered by postfilter v. 0.8.2 Xref: news.eternal-september.org comp.lang.ada:25726 Date: 2015-05-04T14:17:26+02:00 List-Id: On Mon, 04 May 2015 13:26:50 +0200, G.B. wrote: > On 04.05.15 10:45, robin.vowels@gmail.com wrote: >> Detecting overflow is typically very fast. > > Is it fast? It is not trivial to handle hardware counter's overflows, e.g. by extending it, like 32->64, a lot of ugly issues with race conditions. As a programmer I always suggest to scrap garbage hardware. Engineers usually propose the opposite - to fix hardware by software means. That is how people get hurt! (:-() -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de