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Re: Hash table implementation.

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Am 08/12/2011 08:55 AM, schrieb lolzy@live.nl:
> * Why shouldn't I use the register keyword for loop variables?

The register keyword is just a misnomer and has not much to do with the
registers of your CPU. Its only purpose nowadays is that you are not
allowed to take the address of such a variable such that it *may* be
implemented more efficiently (e.g a CPU register or an immediate).

So it is a request by you that you want to be warned if you ever use the
address because you think that the implementation of that variable is
critical. There is nothing bad in using "register" but most of the time
it just doesn't change much. A good compiler finds these things out
quite well by its own.

But probably the same holds for const-qualifying variables or
restrict-qualifying pointers. So why the "register" keyword is
particularly frowned upon by many C programmers? Perhaps just because of
its misnaming.

Jens

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Hash table implementation. lolzy@live.nl - 2011-08-11 10:43 -0700
  Re: Hash table implementation. China Blue Tip Wrench <chine.bleu@yahoo.com> - 2011-08-11 11:25 -0700
  Re: Hash table implementation. Keith Thompson <kst-u@mib.org> - 2011-08-11 11:49 -0700
    Re: Hash table implementation. Ralf Damaschke <rwspam@gmx.de> - 2011-08-11 20:02 +0000
  Re: Hash table implementation. Ike Naar <ike@sverige.freeshell.org> - 2011-08-11 22:02 +0000
  Re: Hash table implementation. "Scott Fluhrer" <sfluhrer@ix.netcom.com> - 2011-08-11 18:14 -0400
    Re: Hash table implementation. lolzy@live.nl - 2011-08-11 23:55 -0700
      Re: Hash table implementation. lolzy@live.nl - 2011-08-12 01:38 -0700
      Re: Hash table implementation. Nobody <nobody@nowhere.com> - 2011-08-12 09:47 +0100
        Re: Hash table implementation. tom st denis <tom@iahu.ca> - 2011-08-12 06:15 -0700
          Re: Hash table implementation. James Kuyper <jameskuyper@verizon.net> - 2011-08-12 11:34 -0400
            Re: Hash table implementation. Keith Thompson <kst-u@mib.org> - 2011-08-12 08:50 -0700
              Re: Hash table implementation. James Kuyper <jameskuyper@verizon.net> - 2011-08-12 12:24 -0400
          Re: Hash table implementation. Keith Thompson <kst-u@mib.org> - 2011-08-12 08:38 -0700
            Re: Hash table implementation. tom st denis <tom@iahu.ca> - 2011-08-12 10:17 -0700
              Re: Hash table implementation. James Kuyper <jameskuyper@verizon.net> - 2011-08-12 13:54 -0400
                Re: Hash table implementation. tom st denis <tom@iahu.ca> - 2011-08-12 11:30 -0700
                Re: Hash table implementation. Seebs <usenet-nospam@seebs.net> - 2011-08-12 20:39 +0000
                Re: Hash table implementation. Keith Thompson <kst-u@mib.org> - 2011-08-12 14:08 -0700
            Re: Hash table implementation. gordonb.4sxmx@burditt.org (Gordon Burditt) - 2011-08-12 20:04 -0500
              Re: Hash table implementation. Keith Thompson <kst-u@mib.org> - 2011-08-12 18:40 -0700
                Re: Hash table implementation. Harald van Dijk <truedfx@gmail.com> - 2011-08-13 12:59 -0700
              Re: Hash table implementation. Seebs <usenet-nospam@seebs.net> - 2011-08-13 02:34 +0000
      Re: Hash table implementation. Ike Naar <ike@iceland.freeshell.org> - 2011-08-12 11:13 +0000
      Re: Hash table implementation. Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-08-12 07:24 -0400
      Re: Hash table implementation. Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2011-08-12 09:27 -0600
      Re: Hash table implementation. Seebs <usenet-nospam@seebs.net> - 2011-08-12 18:37 +0000
      Re: Hash table implementation. Jens Gustedt <Jens.Gustedt@loria.fr> - 2011-08-13 00:08 +0200
        Re: Hash table implementation. Keith Thompson <kst-u@mib.org> - 2011-08-12 15:26 -0700
          Re: Hash table implementation. Jens Gustedt <Jens.Gustedt@loria.fr> - 2011-08-13 15:11 +0200
            Re: Hash table implementation. Keith Thompson <kst-u@mib.org> - 2011-08-13 11:38 -0700
              Re: Hash table implementation. Jens Gustedt <Jens.Gustedt@loria.fr> - 2011-08-13 21:03 +0200
        Re: Hash table implementation. "Herbert Rosenau" <os2guy@pc-rosenau.de> - 2011-08-19 08:17 +0000
          Re: Hash table implementation. Jens Gustedt <jens.gustedt@loria.fr> - 2011-08-19 13:29 +0200
          Re: Hash table implementation. Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2011-08-19 14:35 +0300
  Re: Hash table implementation. Michael Angelo Ravera <maravera@prodigy.net> - 2011-08-12 02:54 -0700
  Re: Hash table implementation. Rui Maciel <rui.maciel@gmail.com> - 2011-08-13 23:11 +0100
    Re: Hash table implementation. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-08-14 00:56 +0100
      Re: Hash table implementation. lolzy@live.nl - 2011-08-14 00:11 -0700
        Re: Hash table implementation. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-08-14 11:57 +0100

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