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=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail From: Paul Rubin Newsgroups: comp.lang.ada Subject: Re: 64-bit unsigned integer? Date: Wed, 28 Feb 2018 21:47:25 -0800 Organization: A noiseless patient Spider Message-ID: <87muzsz6s2.fsf@nightsong.com> References: <421d1598-68d7-4d0b-b596-6e9c59cf865c@googlegroups.com> <877eqxe7u8.fsf@nightsong.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: reader02.eternal-september.org; posting-host="94c9af6f423ddfc23bef3f0a83e50f35"; logging-data="14667"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/nwp9eJF+l06+oUN3xdanx" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux) Cancel-Lock: sha1:aihZxbPQSXBOGDmy+jIi9km3YeU= sha1:aupwgbYY4Cch6Ap/vhQwarMuyu4= Xref: reader02.eternal-september.org comp.lang.ada:50730 Date: 2018-02-28T21:47:25-08:00 List-Id: "Randy Brukardt" writes: > One of the main reason for the change to libraries is that we have a number > of requests to add additional numeric functionality (unlimited-size integers > ["bignum"], saturation math) I'd imagine that in the Ada world, machine integers should have a more primitive status than that of bignums. That's because bignum arithmetic can allocate hard-to-predict amounts of memory and take unknown runtime, in tension with Ada's emphasis on resource control and realtime predictability.