Re: operator precedence

From	Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups	comp.lang.c
Subject	Re: operator precedence
Date	2022-04-25 11:10 -0700
Organization	A noiseless patient Spider
Message-ID	<86v8ux58zx.fsf@linuxsc.com> (permalink)
References	<thought-20220408125437@ram.dialup.fu-berlin.de> <t2v61c$ej9$1@gioia.aioe.org>

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Guillaume <message@bottle.org> 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

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Thread

Re: operator precedence Guillaume <message@bottle.org> - 2022-04-10 20:01 +0200
  Re: operator precedence Ben <ben.usenet@bsb.me.uk> - 2022-04-10 20:34 +0100
    Re: operator precedence Guillaume <message@bottle.org> - 2022-04-11 20:52 +0200
      Re: operator precedence Ben <ben.usenet@bsb.me.uk> - 2022-04-11 21:27 +0100
        Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-14 13:38 +0200
          Re: operator precedence Ben <ben.usenet@bsb.me.uk> - 2022-04-14 14:07 +0100
            Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-18 14:00 +0200
        Re: operator precedence Guillaume <message@bottle.org> - 2022-04-15 19:28 +0200
          Re: operator precedence Ben <ben.usenet@bsb.me.uk> - 2022-04-15 19:25 +0100
            Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-18 14:12 +0200
              Re: operator precedence Kaz Kylheku <480-992-1380@kylheku.com> - 2022-04-18 16:38 +0000
                Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-18 19:20 +0200
                Re: operator precedence Kaz Kylheku <480-992-1380@kylheku.com> - 2022-04-19 17:40 +0000
                Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-19 22:41 +0200
              Re: operator precedence James Kuyper <jameskuyper@alumni.caltech.edu> - 2022-04-18 23:08 -0400
                Re: operator precedence Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-04-25 08:40 -0700
                Re: operator precedence "james...@alumni.caltech.edu" <jameskuyper@alumni.caltech.edu> - 2022-04-25 10:35 -0700
  Re: operator precedence Vir Campestris <vir.campestris@invalid.invalid> - 2022-04-10 21:51 +0100
  Re: operator precedence Bonita Montero <Bonita.Montero@gmail.com> - 2022-04-11 11:35 +0200
  Re: operator precedence gazelle@shell.xmission.com (Kenny McCormack) - 2022-04-11 13:53 +0000
  Re: operator precedence Guillaume <message@bottle.org> - 2022-04-11 20:36 +0200
  Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-14 13:14 +0200
  Re: operator precedence Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-04-25 11:10 -0700
    Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-25 20:52 +0200
      Re: operator precedence Ben <ben.usenet@bsb.me.uk> - 2022-04-25 21:18 +0100
        Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-26 15:30 +0200
          Re: operator precedence Ben <ben.usenet@bsb.me.uk> - 2022-04-26 15:58 +0100
            Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-26 21:19 +0200
              Re: operator precedence Sams Lara <samlara622@gmail.com> - 2022-04-27 02:15 +0100
                Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-27 09:13 +0200
                Re: operator precedence Ben <ben.usenet@bsb.me.uk> - 2022-04-27 19:43 +0100
                Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-28 10:09 +0200
                Re: operator precedence Ben <ben.usenet@bsb.me.uk> - 2022-04-28 10:44 +0100
                Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-28 11:59 +0200
                Re: operator precedence Giovanni <lsodgf0@home.net.it> - 2022-04-28 12:29 +0200
                Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-28 12:56 +0200
                Re: operator precedence Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-04-28 04:17 -0700
                Re: operator precedence Ben <ben.usenet@bsb.me.uk> - 2022-04-28 12:24 +0100
                Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-28 14:28 +0200
                Re: operator precedence Dan Purgert <dan@djph.net> - 2022-04-28 14:00 +0000
                Re: operator precedence Dan Purgert <dan@djph.net> - 2022-04-28 14:38 +0000
                Re: operator precedence Ben <ben.usenet@bsb.me.uk> - 2022-04-28 20:36 +0100
                Re: operator precedence Richard Harnden <richard.nospam@gmail.com> - 2022-04-28 21:22 +0100
                Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-29 09:43 +0200
                Re: operator precedence Kaz Kylheku <480-992-1380@kylheku.com> - 2022-04-28 20:51 +0000
                Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-29 10:04 +0200
                Re: operator precedence Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-04-29 03:01 -0700
                Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-29 15:02 +0200
                Re: operator precedence James Kuyper <jameskuyper@alumni.caltech.edu> - 2022-04-29 10:48 -0400
                Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-29 17:29 +0200
            Re: operator precedence bart c <bart4858@gmail.com> - 2022-04-26 14:30 -0700
              Re: operator precedence Ben <ben.usenet@bsb.me.uk> - 2022-04-27 00:00 +0100
              Re: operator precedence David Brown <david.brown@hesbynett.no> - 2022-04-27 09:46 +0200
          Re: operator precedence Öö Tiib <ootiib@hot.ee> - 2022-04-27 00:10 -0700
    Re: operator precedence scott@slp53.sl.home (Scott Lurndal) - 2022-04-25 19:02 +0000
      Re: operator precedence Ben <ben.usenet@bsb.me.uk> - 2022-04-25 21:38 +0100
        Re: operator precedence Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-04-25 22:22 -0700

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