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Re: Coding Style Question - Is there any sane reason for doing this?

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On 01/10/12 02:11 PM, BCFD36 wrote:
> I am working on a piece of legacy code that has many, shall we say,
> strange things. This one, as J.K. Anderson (classics Prof at UC
> Berkeley) used to say, "baffles me". It has the following statement in
> the code:
>
> const unsigned int WAKEUP_MASK = (1<<  1) ;
>
> Is there any reason for doing this,  other than to make the code even
> more obscure?

In addition to Alf's comments, the form is quite common especially in 
the embedded or driver world.  Although it is more common to see 
something like

const unsigned wakeupBit    = 1;
const unsigned someOtherBit = 2;

// other bit definitions

const uint32_t wakeupMask = (1u << wakeupBit);

-- 
Ian Collins

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Coding Style Question - Is there any sane reason for doing this? BCFD36 <bcfd36@aol.com> - 2012-01-09 17:11 -0800
  Re: Coding Style Question - Is there any sane reason for doing this? "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2012-01-10 02:23 +0100
    Re: Coding Style Question - Is there any sane reason for doing this? legalize+jeeves@mail.xmission.com (Richard) - 2012-01-10 06:05 +0000
      Re: Coding Style Question - Is there any sane reason for doing this? "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2012-01-10 07:12 +0100
        Re: Coding Style Question - Is there any sane reason for doing this? BCFD36 <bcfd36@cruzio.com> - 2012-01-09 22:35 -0800
      Re: Coding Style Question - Is there any sane reason for doing this? Gareth Owen <gwowen@gmail.com> - 2012-01-10 06:58 +0000
    Re: Coding Style Question - Is there any sane reason for doing this? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2012-01-10 21:58 +0000
      Re: Coding Style Question - Is there any sane reason for doing this? David Dyer-Bennet <dd-b@dd-b.net> - 2012-01-10 16:46 -0600
      Re: Coding Style Question - Is there any sane reason for doing this? jt@toerring.de (Jens Thoms Toerring) - 2012-01-10 23:41 +0000
        Re: Coding Style Question - Is there any sane reason for doing this? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2012-01-11 00:19 +0000
          Re: Coding Style Question - Is there any sane reason for doing this? "MikeWhy" <boat042-nospam@yahoo.com> - 2012-01-10 21:53 -0600
      Re: Coding Style Question - Is there any sane reason for doing this? Juha Nieminen <nospam@thanks.invalid> - 2012-01-11 15:14 +0000
        Re: Coding Style Question - Is there any sane reason for doing this? Victor Bazarov <v.bazarov@comcast.invalid> - 2012-01-11 11:46 -0500
  Re: Coding Style Question - Is there any sane reason for doing this? Ian Collins <ian-news@hotmail.com> - 2012-01-10 14:30 +1300
    Re: Coding Style Question - Is there any sane reason for doing this? BCFD36 <bcfd36@cruzio.com> - 2012-01-09 21:32 -0800
      Re: Coding Style Question - Is there any sane reason for doing this? Paavo Helde <myfirstname@osa.pri.ee> - 2012-01-10 01:01 -0600
        Re: Coding Style Question - Is there any sane reason for doing this? BCFD36 <bcfd36@cruzio.com> - 2012-01-09 23:11 -0800
          Re: Coding Style Question - Is there any sane reason for doing this? yatremblay@bel1lin202.(none) (Yannick Tremblay) - 2012-01-11 10:23 +0000
            Re: Coding Style Question - Is there any sane reason for doing this? yatremblay@bel1lin202.(none) (Yannick Tremblay) - 2012-01-11 10:37 +0000
        Re: Coding Style Question - Is there any sane reason for doing this? Nick Keighley <nick_keighley_nospam@hotmail.com> - 2012-01-10 00:30 -0800
          Re: Coding Style Question - Is there any sane reason for doing this? "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2012-01-10 16:31 +0100
            Re: Coding Style Question - Is there any sane reason for doing this? scott@slp53.sl.home (Scott Lurndal) - 2012-01-10 17:14 +0000
              Re: Coding Style Question - Is there any sane reason for doing this? Victor Bazarov <v.bazarov@comcast.invalid> - 2012-01-10 15:11 -0500
                Re: Coding Style Question - Is there any sane reason for doing this? Richard <rgrdev_@gmail.com> - 2012-01-10 21:45 +0100
                Re: Coding Style Question - Is there any sane reason for doing this? hanukas <jukka@liimatta.org> - 2012-01-11 00:04 -0800
                Re: Coding Style Question - Is there any sane reason for doing this? hanukas <jukka@liimatta.org> - 2012-01-11 00:15 -0800
                Re: Coding Style Question - Is there any sane reason for doing this? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2012-01-10 21:51 +0000
                Re: Coding Style Question - Is there any sane reason for doing this? "Bill Davy" <Bill@SynectixLtd.com> - 2012-01-11 08:30 +0000
                Re: Coding Style Question - Is there any sane reason for doing this? "Fred Zwarts \(KVI\)" <F.Zwarts@KVI.nl> - 2012-01-11 09:40 +0100
                Re: Coding Style Question - Is there any sane reason for doing this? hanukas <jukka@liimatta.org> - 2012-01-11 06:50 -0800
                Re: Coding Style Question - Is there any sane reason for doing this? scott@slp53.sl.home (Scott Lurndal) - 2012-01-11 17:28 +0000
                Re: Coding Style Question - Is there any sane reason for doing this? David Dyer-Bennet <dd-b@dd-b.net> - 2012-01-11 13:28 -0600
            Re: Coding Style Question - Is there any sane reason for doing this? jgk@panix.com (Joe keane) - 2012-01-11 17:51 +0000
            Re: Coding Style Question - Is there any sane reason for doing this? Nick Keighley <nick_keighley_nospam@hotmail.com> - 2012-01-12 05:40 -0800
              Re: Coding Style Question - Is there any sane reason for doing this? BCFD36 <bcfd36@cruzio.com> - 2012-01-12 20:42 -0800
          Re: Coding Style Question - Is there any sane reason for doing this? hanukas <jukka@liimatta.org> - 2012-01-10 23:50 -0800

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