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06/27/05 14:09
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 		 #96020 - Aside - 'C' #define names
Responding to: ???'s previous message
Leo Paul said:
Save This Code
#define Xtal 22.1184
#define tic12 (12/Xtal)
#define _10msec (65536 - ((1000 * 10) / tic12))

It is conventional among 'C' programmers to use ALL-UPPERCASE names for preprocessor #defines.

Of course, it makes no difference to the actual operation of your code - but it does make it a whole lot easier to share it in public forums like this if you stick to the conventions!

Also, the 'C' standard specifically states that names beginning with an underscore are reserved for use by the compiler - you shouldn't use them in your own code.



List of 31 messages in thread
TopicAuthorDate
defination under Keil            01/01/70 00:00      
   int/float            01/01/70 00:00      
   IAR PreProcessor VS Keil            01/01/70 00:00      
      confusion            01/01/70 00:00      
         just doing text subistituons I guess            01/01/70 00:00      
            un            01/01/70 00:00      
               preprocessor            01/01/70 00:00      
                  Some confusion abounds...            01/01/70 00:00      
                     Wrong again!            01/01/70 00:00      
                        Take is easy...            01/01/70 00:00      
                           The important bit...?            01/01/70 00:00      
         Floating-point not supported in eval            01/01/70 00:00      
      preprocessor maths            01/01/70 00:00      
         I was being carelessly loose............            01/01/70 00:00      
            Keil Test            01/01/70 00:00      
            Save you the trouble            01/01/70 00:00      
               Oh            01/01/70 00:00      
         preproccessor maths            01/01/70 00:00      
            ##########            01/01/70 00:00      
               thats the confusion            01/01/70 00:00      
                  In context            01/01/70 00:00      
                     Thanks            01/01/70 00:00      
                  Think about it            01/01/70 00:00      
   Aside - 'C' #define names            01/01/70 00:00      
      good coding practices            01/01/70 00:00      
   Thank you            01/01/70 00:00      
      Alternatively...            01/01/70 00:00      
         re: Alternatively...            01/01/70 00:00      
      Not a good idea            01/01/70 00:00      
         Not a good idea            01/01/70 00:00      
         floating point in ISRs            01/01/70 00:00      

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