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???
06/10/07 17:49
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 		 #140513 - OK Then 38 Bytes
Responding to: ???'s previous message
Save This Code
UC TestFlip(UC c) 
{
//c=c/2&85|c*2&170;c=c/4&51|c*4&204;RT c>>4|c<<4;       // (47) Cooper
//UC r,i=8;WH(i--){r>>=1;r|=c&128;c*=2;}RT r;           // (43) Karas
//UC r,i=8;WH(i--){r*=2;r|=c&1;c/=2;}RT r;              // (40) Karas
  UC r,i=8;WH(i--){r=r*2|c&1;c/=2;}RT r;                // (38) Cooper
}
I don't want to change the rules again for this contest, but your last tweak (where you got rid of that nasty '128') makes me wonder if (in future contests) we should also allow #defines for magic numbers like that. In the same way that we've said that all keywords cost the same, it also might make sense to say that all numbers cost the same. What do you think?

-- Russ


List of 87 messages in thread
TopicAuthorDate
Sunday Quiz - Bit Flipper in C            01/01/70 00:00      
   Here's My 41 Bytes            01/01/70 00:00      
      Very nice, but call it 43 (explained herein)            01/01/70 00:00      
   Sunday Quiz Update            01/01/70 00:00      
      OK Then 39 Bytes...            01/01/70 00:00      
         Oh my goodness            01/01/70 00:00      
            If you want performance...            01/01/70 00:00      
         More bytes, but ...            01/01/70 00:00      
   OK Then 38 Bytes            01/01/70 00:00      
      Comma            01/01/70 00:00      
         36! Holy cow! Very nice!            01/01/70 00:00      
            my 36            01/01/70 00:00      
               Non-conforming            01/01/70 00:00      
                  Wow! 34! |<3WL! :-)            01/01/70 00:00      
                     ???            01/01/70 00:00      
                        KEWL = cool in l33t :-) (worse than SMS...)            01/01/70 00:00      
                  Wow is right!!! plus another 36            01/01/70 00:00      
         Broken            01/01/70 00:00      
            C doesn't try to save you ...            01/01/70 00:00      
            Not Broken            01/01/70 00:00      
   look for samples of FFT code ...            01/01/70 00:00      
   this is competing to make the worst possible            01/01/70 00:00      
      it's certainly not the solution...            01/01/70 00:00      
         correction            01/01/70 00:00      
            Unless you're "porting" ...            01/01/70 00:00      
               there are situations...            01/01/70 00:00      
                  au contraire            01/01/70 00:00      
                     overlayed variables            01/01/70 00:00      
                        non-religious reasons and debunking some            01/01/70 00:00      
                           I doubt that            01/01/70 00:00      
                              now try            01/01/70 00:00      
                                 with the error or without?            01/01/70 00:00      
                                    the 49 is a compare the 48 is coding time            01/01/70 00:00      
                                       47, 48, 49            01/01/70 00:00      
                                          for such a cause as            01/01/70 00:00      
                                          Still more            01/01/70 00:00      
                                             one more point for Pascal            01/01/70 00:00      
                                                Language and vocabulary contributions            01/01/70 00:00      
                                                   Language and vocabulary contributions            01/01/70 00:00      
                                                Yes, it's much more "self-documenting"            01/01/70 00:00      
                                    Singular?            01/01/70 00:00      
                                 well... around 5 minutes            01/01/70 00:00      
                              It's not funny            01/01/70 00:00      
                                 this is why I don't like the "modern" over-windowe            01/01/70 00:00      
         Tastes            01/01/70 00:00      
      Skill in reading            01/01/70 00:00      
         in other words: because there are burglars detecti            01/01/70 00:00      
            That's why one should use ASM and not 'C'            01/01/70 00:00      
               nope            01/01/70 00:00      
                  are you perfect?            01/01/70 00:00      
                  That's why the documentation is necessary            01/01/70 00:00      
                     the old argument from C haters            01/01/70 00:00      
                     One page of comments per statement?            01/01/70 00:00      
                        If it's to be understood later on ...            01/01/70 00:00      
                           if I have to explain my choice of syntax in C, the            01/01/70 00:00      
                              The point is to show why, and not why-not            01/01/70 00:00      
                                 I post, you 'reply'            01/01/70 00:00      
                           Sorry, I still need more help on this            01/01/70 00:00      
                              Never had to do that ... and for good reason.            01/01/70 00:00      
                                 Maybe just one unclear point now            01/01/70 00:00      
                                    Well, if it were up to me ...            01/01/70 00:00      
                                       Thanks            01/01/70 00:00      
                                          I hope you're not missing my point ...            01/01/70 00:00      
                                             You explained yourself clearly            01/01/70 00:00      
                                 Upside down            01/01/70 00:00      
                                    Just look at the body of work ...            01/01/70 00:00      
                                       Nature of commercial software            01/01/70 00:00      
                                          Maybe it's more like a 747 vs. a bicycle            01/01/70 00:00      
                                    on driving and "coding"            01/01/70 00:00      
         even Mr. K agrees            01/01/70 00:00      
   Post Mortem #1            01/01/70 00:00      
      I object            01/01/70 00:00      
      Post Mortem #1.1            01/01/70 00:00      
         both translations are "strange"            01/01/70 00:00      
            Uninitialised?            01/01/70 00:00      
      20 bytes.            01/01/70 00:00      
         teaching the compiler...            01/01/70 00:00      
            Maybe for HLLs, but not for C ...            01/01/70 00:00      
               I know this is the praxis....            01/01/70 00:00      
         incorrect/incomplete statement            01/01/70 00:00      
   Post Mortem #2            01/01/70 00:00      
      Vote: 1. Yes 2. Dont care            01/01/70 00:00      
      modify it!!!!            01/01/70 00:00      
      vote            01/01/70 00:00      
         methink            01/01/70 00:00      
   its interesting that C            01/01/70 00:00      
      I like your proposal            01/01/70 00:00      

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