Path: csiph.com!eternal-september.org!feeder.eternal-september.org!nntp.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Tim Rentsch Newsgroups: comp.lang.c Subject: Re: _BitInt(N) Date: Mon, 15 Dec 2025 08:29:21 -0800 Organization: A noiseless patient Spider Lines: 24 Message-ID: <86pl8fu2se.fsf@linuxsc.com> References: <10dajlh$ko3c$1@dont-email.me> <10fus62$hl69$1@solani.org> <10fv2dm$3can9$1@paganini.bofh.team> <10fv40v$1f7a2$1@dont-email.me> <87ms4c4bom.fsf@example.invalid> <10g08vm$1us25$1@dont-email.me> <10g1et7$2bmus$1@dont-email.me> <10g1j7h$2deh9$1@dont-email.me> <10g1qq9$2f8lb$4@dont-email.me> <10g28gm$2mf9s$1@dont-email.me> <87cy563m3v.fsf@example.invalid> <10g44fn$3bqef$1@dont-email.me> <20251125141207.00001d0f@yahoo.com> <10g4g4c$3h9nv$1@dont-email.me> <20251125182943.00002586@yahoo.com> <10g4spq$3lsgn$1@dont-email.me> <20251126112916.00005eef@yahoo.com> <10g8cf3$10jol$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Date: Mon, 15 Dec 2025 16:29:23 +0000 (UTC) Injection-Info: dont-email.me; posting-host="3b66f75cc16331490dd39d06d7ef9603"; logging-data="2116619"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/uFmHBLqnJIhQVPmPt9YaGgtMmWu9ZDD4=" User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.4 (gnu/linux) Cancel-Lock: sha1:nv7OcdarqtgPn7ntYsXMCO7Ym6c= sha1:Hn22MWQCK99Ix6lUey4ipG2qp+o= Xref: csiph.com comp.lang.c:395819 James Kuyper writes: > On 2025-11-26 04:29, Michael S wrote: > >> On Tue, 25 Nov 2025 18:33:30 +0000 >> bart wrote: > > ... > >>> Then maybe C bitfields could be used, but a bigger problem with those >>> is poor control over layout, which is anyway implementation-defined. >>> (Mine of course don't have that problem!) >> >> According to the language of The Standard, it's not 'poor control'. >> As far as standard requirements goes, there is *no* control on >> layout of bit fields. > > C ;doesn't provide enough control over bit-field layouts to be useful, > but it's an exaggeration to say it provides no control at all: [...] In my experience standard C does provide enough control over bit-field layout to be useful under some conditions. It doesn't provide as much control as I would like, but in some circumstances it does provide enough to be useful.