Path: csiph.com!eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail From: Tim Rentsch Newsgroups: comp.lang.c Subject: Re: How to avoid an overflow during multiplication? Date: Sat, 22 Jan 2022 10:03:34 -0800 Organization: A noiseless patient Spider Lines: 14 Message-ID: <86tudvodft.fsf@linuxsc.com> References: <8735m954yz.fsf@bsb.me.uk> <877dbk36qu.fsf@nosuchdomain.example.com> <86v8ydp57h.fsf@linuxsc.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: reader02.eternal-september.org; posting-host="434625eb2bdf5b21805d62a567edd212"; logging-data="22694"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX183v2yInv3gfPL8tXjDxU9tr/l0V4n0eMw=" User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.4 (gnu/linux) Cancel-Lock: sha1:ppqwsZgxd0hcQ87BvZ/9terOlm0= sha1:x1emcGILcaXo6EZb8a4HnlL+yaU= Xref: csiph.com comp.lang.c:164545 Richard Damon writes: [regarding various warning options and program style] > That one may not be, but there are some that are purely stylistic, > and different implementations enforce different styles. > > One big class is 'redundant' parentheses. Some implementations > consider some operations to have 'unnatural' precedence, and will > advise adding parentheses to make that explicit, while others will > warn that those parentheses aren't needed and are just redundant. Personally I would like to see a compiler option that warns in /all/ cases of redundant parentheses.