static character pointer within a function

This is a discussion on static character pointer within a function within the C++ Programming forums, part of the General Programming Boards category; Hi All, I am not sure all static variables define locally within a function is putting on stack memory or ...

  1. #1
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    Question static character pointer within a function

    Hi All,

    I am not sure all static variables define locally within a function is putting on stack memory or on the heap or global memory space.
    Does anyone know?
    Thanks!
    DV007

    Code:
    class Foo
    {
       public:
       Foo();
       void convert_message_to_string()
       {
          static char * strbuffer;    // is strbuffer on stack or heap after function return???
         // convert an unpredict size of message struct into string, then return . With restriction of not allow using New operator or Malloc(). Gosh!  
       }
    
      private:
       struct MessageType message;
    
    };
    Last edited by dv007; 02-09-2006 at 11:49 AM.

  2. #2
    Registered User hk_mp5kpdw's Avatar
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    All static variables are located in the program's data segment where other globals reside.
    "Owners of dogs will have noticed that, if you provide them with food and water and shelter and affection, they will think you are god. Whereas owners of cats are compelled to realize that, if you provide them with food and water and shelter and affection, they draw the conclusion that they are gods."
    -Christopher Hitchens

  3. #3
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    Note that the variable is just an uninitialized pointer. What it points to depends on what you assign to it. If you use new to allocate space for the buffer, then that space resides on the heap. If you assign the address of an existing variable or literal then the pointer might point to memory somewhere else.

  4. #4
    Just Lurking Dave_Sinkula's Avatar
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    Quote Originally Posted by Daved
    Note that the variable is just an uninitialized pointer.
    Isn't it implicitily initialized to a null pointer because it has static storage duration?
    7. It is easier to write an incorrect program than understand a correct one.
    40. There are two ways to write error-free programs; only the third one works.*

  5. #5
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    I'm not sure. You are probably right.

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