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Per Westermark
05/18/12 06:58
Read: 423 times
Sweden


 
#187414 - Have you read my original post?
Responding to: ???'s previous message
But did you read my original post - because Eriks anwer is only partial.
And you ask new questions that has specifically been answered in my original post - for example difference between Data and BSS.

"Data = constants sometimes"

Yes - sometimes constants are stored in Data. Sometimes in Text.
But besides that, global variables with initial value are stored in Data.
And BSS is global variables without initial values.
And function-local or file-local static variables are stored in either Data or BSS depending on if they have an initial value. Unless they are read-only, in which case they may be stored in Text.

And there isn't really any "usually" about dynamic memory on the heap.
The heap does store dynamically allocated variables.
But sometimes, programs use different constructs so they don't use any heap but create their own schemes for dynamically allocated variables.

List of 21 messages in thread
TopicAuthorDate
Memory Organization      Yagnesh Mehta      05/16/12 02:39      
   Tried any good C book lately?      Per Westermark      05/16/12 03:48      
      I am using Dennis Ritchie_ANCI C      Yagnesh Mehta      05/16/12 12:25      
         Variables don't move just because you assign to them      Per Westermark      05/18/12 02:33      
            can we start from ZERO........      Yagnesh Mehta      05/18/12 04:27      
               Have you read my original post?      Per Westermark      05/18/12 06:58      
               mixing stuff      Erik Malund      05/18/12 07:13      
                  where it will be for MCU?      Yagnesh Mehta      05/18/12 12:02      
                     is there any book for this fundamental things?      Andy Neil      05/18/12 14:59      
                        and ....      Erik Malund      05/18/12 16:33      
                     In this a general or Specific Question      Neil Kurzman      05/18/12 17:10      
                        its General Que ????      Yagnesh Mehta      05/18/12 23:50      
                           Separate "the C view of program" from "microcontroller view"        Per Westermark      05/19/12 01:48      
                           NO!      Erik Malund      05/19/12 15:53      
                              why not??      Yagnesh Mehta      05/20/12 21:56      
                                 No - generic isn't meaningful      Per Westermark      05/21/12 01:49      
                                 Interview questions can be asked out of limited knowledge      Kalpak Dabir      05/21/12 05:48      
                                    Seldom "one" answer other than to trivial questions      Per Westermark      05/21/12 06:41      
   In Addition      Michael Karas      05/16/12 10:24      
      Embedded?      Per Westermark      05/16/12 10:42      
   sometimes, usually      Erik Malund      05/16/12 13:17      

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