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???
11/10/11 15:19
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 		 #184614 - Always good to hide black-box data in structs
Responding to: ???'s previous message
Erik Malund said:
why the "struct of an array"?
a struct whith one entry does not make sense to me
I have seen such before, if anyone has a valid reason for such, pray tell.

Erik

A struct always makes sense if you want to give a data type for creation of variables without the main part of the program knowing about what the variable is really storing.

For a data type "int", "char" etc, the data type could have been just that.

But arrays are always problematic - you do not want your "black-box" variables to be an array. Remember that an array in itself is a pointer, so what is p++ when p is a pointer to an array of 4 bytes, instead of a pointer to a struct containing an array of four bytes?


List of 39 messages in thread
TopicAuthorDate
Keil problem...            01/01/70 00:00      
   Kel support            01/01/70 00:00      
      Keil support            01/01/70 00:00      
         Reward for finding bug            01/01/70 00:00      
            been tried            01/01/70 00:00      
               public bug tracker            01/01/70 00:00      
                  It's not a KEIL-specific problem ...            01/01/70 00:00      
                     not really            01/01/70 00:00      
                        It's those "snapshots" that I meant            01/01/70 00:00      
                           Not true            01/01/70 00:00      
                              Remember, where you sit determines what you see            01/01/70 00:00      
                                 Concept            01/01/70 00:00      
                                 I do not ...            01/01/70 00:00      
                                    Comfort contra mobile phone            01/01/70 00:00      
                                       Where you sit determines what you see ...            01/01/70 00:00      
                                          You are still assuming you know what other people think/do            01/01/70 00:00      
                                             You've overlooked the most basic fact ...            01/01/70 00:00      
                                                Unuseful toy?            01/01/70 00:00      
                                                   Once again, you've missed the point ...            01/01/70 00:00      
                                                      Look for progress, instead of just looking back at history            01/01/70 00:00      
                                                         are you that lucky?            01/01/70 00:00      
                                                            Yes            01/01/70 00:00      
                                                         Consider my position            01/01/70 00:00      
      keil update            01/01/70 00:00      
         auto variables            01/01/70 00:00      
   Global Variable Initiaization            01/01/70 00:00      
   just curious            01/01/70 00:00      
      Always good to hide black-box data in structs            01/01/70 00:00      
      Initialising array inside struct            01/01/70 00:00      
         not necessarily            01/01/70 00:00      
      Library            01/01/70 00:00      
   New facts...            01/01/70 00:00      
      At the very least use static for one-time initialized locals            01/01/70 00:00      
         it works! thanks...            01/01/70 00:00      
            Look at code in Debugger. It will tell all.            01/01/70 00:00      
               It's called "Overlaying"            01/01/70 00:00      
                  Optimization            01/01/70 00:00      
      are you sure ...            01/01/70 00:00      
   Thanks...            01/01/70 00:00      

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