Path: csiph.com!eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail From: Tim Rentsch Newsgroups: comp.lang.c Subject: Re: operator precedence Date: Mon, 25 Apr 2022 11:10:58 -0700 Organization: A noiseless patient Spider Lines: 28 Message-ID: <86v8ux58zx.fsf@linuxsc.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: reader02.eternal-september.org; posting-host="2b2bd3060d7fb14ae545fc6b32585799"; logging-data="20117"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX195G8NijEAk0s7O7n1zhOvw0pcsB/5beBU=" User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.4 (gnu/linux) Cancel-Lock: sha1:AoYT50TtlfX6GziY1+ZedD1jqt8= sha1:1T8QC2zNYbXSS+6YT4VDA1tCKRg= Xref: csiph.com comp.lang.c:165929 Guillaume writes: > Le 08/04/2022 at 14:00, Stefan Ram a ecrit: > >> Recently, I wrote: >> >> board & 1 << row * COLS + col > > If I saw this coming from someone in my team, I would probably fire them. =) > > I'm not even sure this is correct from what you really intended. But > even if it is, there's a rule in programming, IMO, that's above the > programming language's grammar: readability for us humans. > > Code we write is meant for humans, not machines. That's something > people forget way too often. That's why we write using higher-level > languages, not assembly or even machine code. Or, look at the > obfuscated C contest and such. This is proper C from a language > standpoint, but nothing you'd want to deal with. > > The readability rule that applies here is, if you need more than a few > seconds figuring out what a given statement exactly does, and may have > to even open the C standard to make sure, then it's badly > written. Rewrite it. Human readability can be improved as follows: board & 1 << row*COLS+col