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=-0.0 required=3.0 tests=BAYES_40 autolearn=ham autolearn_force=no version=3.4.5-pre1 Path: eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail From: Paul Rubin Newsgroups: comp.lang.ada Subject: Re: Quick inverse square root Date: Mon, 04 Jan 2021 13:06:01 -0800 Organization: A noiseless patient Spider Message-ID: <87mtxo9zuu.fsf@nightsong.com> References: <6489a95e-dae1-486e-9aee-78e9d6e50ecan@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: reader02.eternal-september.org; posting-host="d5b29b0e9ef200470bf9e49033bd20fb"; logging-data="28635"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19wlK0REztyqQzF98j8jBH3" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) Cancel-Lock: sha1:9vsglf1KoaktSAA2qTr6jS/rJOQ= sha1:LByovMWLY9Vw4Q7MhbaRL8QSkVM= Xref: reader02.eternal-september.org comp.lang.ada:61030 List-Id: Matt Borchers writes: > As I said, I turned a bunch of ugly C into a few lines of pretty Ada > for a skeptic. You could write the C code similarly to the Ada, using a union. I don't know why the C program isn't written that way. Maybe it is very old.