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Groups > comp.lang.c > #15862

Re: Tree implementation, ideas for keyboard input method needed

From Kaz Kylheku <kaz@kylheku.com>
Newsgroups comp.lang.c
Subject Re: Tree implementation, ideas for keyboard input method needed
Date 2012-01-16 22:44 +0000
Organization A noiseless patient Spider
Message-ID <20120116143047.226@kylheku.com> (permalink)
References <Xns9FDCEA347419Bbubbachipsetone@130.133.4.11>

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On 2012-01-16, Bubba <nickname@banelli.biz.invalid> wrote:
> #define LAMBDA NULL

While this is a valiant effort, I recommend nothing less than:

#define PASTE(X, Y) X ## Y
#define XPASTE(X, Y) PASTE(X, Y)
#define MKTOKEN(A, B, C, D) XPASTE(XPASTE(A, B), XPASTE(C, D))
#define LAMBDA MKTOKEN(N, U, L, L)

Now you've REALLY defined a useless synonym for a useless synonym for zero,
in style!

Also, don't foget:

/* right-associatively-pasted lambda */
#define R_MKTOKEN(A, B, C, D) XPASTE(A, XPASTE(B, XPASTE(C, D)))
#define R_LAMBDA R_MKTOKEN(N, U, L, L)

/* left-associatively-pasted lambda */
#define L_MKTOKEN(A, B, C, D) XPASTE(XPASTE(XPASTE(A, B), C), D)
#define L_LAMBDA L_MKTOKEN(N, U, L, L)

Benchmark all three to see which LAMBDA null pointer constant runs faster!

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Thread

Tree implementation, ideas for keyboard input method needed Bubba <nickname@banelli.biz.invalid> - 2012-01-16 22:01 +0000
  Re: Tree implementation, ideas for keyboard input method needed Keith Thompson <kst-u@mib.org> - 2012-01-16 14:27 -0800
    Re: Tree implementation, ideas for keyboard input method needed Bubba <nickname@banelli.biz.invalid> - 2012-01-16 22:36 +0000
      Re: Tree implementation, ideas for keyboard input method needed Kaz Kylheku <kaz@kylheku.com> - 2012-01-16 22:53 +0000
      Re: Tree implementation, ideas for keyboard input method needed James Kuyper <jameskuyper@verizon.net> - 2012-01-16 18:06 -0500
      Re: Tree implementation, ideas for keyboard input method needed Keith Thompson <kst-u@mib.org> - 2012-01-16 16:41 -0800
    Re: Tree implementation, ideas for keyboard input method needed Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-01-16 23:01 +0000
      Re: Tree implementation, ideas for keyboard input method needed Shao Miller <sha0.miller@gmail.com> - 2012-01-16 19:49 -0500
        Re: Tree implementation, ideas for keyboard input method needed Keith Thompson <kst-u@mib.org> - 2012-01-16 17:46 -0800
  Re: Tree implementation, ideas for keyboard input method needed Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-01-16 22:29 +0000
    Re: Tree implementation, ideas for keyboard input method needed Bubba <nickname@banelli.biz.invalid> - 2012-01-16 22:38 +0000
    Re: Tree implementation, ideas for keyboard input method needed William Ahern <william@wilbur.25thandClement.com> - 2012-01-16 15:30 -0800
      Re: Tree implementation, ideas for keyboard input method needed Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-01-17 00:03 +0000
      Re: Tree implementation, ideas for keyboard input method needed Keith Thompson <kst-u@mib.org> - 2012-01-16 16:35 -0800
        Re: Tree implementation, ideas for keyboard input method needed cri@tiac.net (Richard Harter) - 2012-01-17 02:00 +0000
          Re: Tree implementation, ideas for keyboard input method needed Keith Thompson <kst-u@mib.org> - 2012-01-16 19:16 -0800
            Re: Tree implementation, ideas for keyboard input method needed cri@tiac.net (Richard Harter) - 2012-01-17 05:15 +0000
              Re: Tree implementation, ideas for keyboard input method needed Keith Thompson <kst-u@mib.org> - 2012-01-17 00:00 -0800
          Re: Tree implementation, ideas for keyboard input method needed Kaz Kylheku <kaz@kylheku.com> - 2012-01-17 04:04 +0000
  Re: Tree implementation, ideas for keyboard input method needed Kaz Kylheku <kaz@kylheku.com> - 2012-01-16 22:44 +0000
  Re: Tree implementation, ideas for keyboard input method needed Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-01-16 17:58 -0500
  Re: Tree implementation, ideas for keyboard input method needed ImpalerCore <jadill33@gmail.com> - 2012-01-16 19:36 -0800
    Re: Tree implementation, ideas for keyboard input method needed Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-01-16 23:33 -0500
      Re: Tree implementation, ideas for keyboard input method needed ImpalerCore <jadill33@gmail.com> - 2012-01-17 07:18 -0800
    Re: Tree implementation, ideas for keyboard input method needed "BartC" <bc@freeuk.com> - 2012-01-17 13:54 +0000
      Re: Tree implementation, ideas for keyboard input method needed ImpalerCore <jadill33@gmail.com> - 2012-01-17 07:39 -0800
    Re: Tree implementation, ideas for keyboard input method needed Kaz Kylheku <kaz@kylheku.com> - 2012-01-17 19:01 +0000
  Re: Tree implementation, ideas for keyboard input method needed jgk@panix.com (Joe keane) - 2012-01-18 21:21 +0000

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