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  1.  Home
  2. RPG400-L
  3. January 2011

Re: Memory allocation strategy

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On 2011-01-08 21:22, Elbert Cook wrote:
If you allocate 100 bytes of memory and for some reason, there is a pointer
within those 100 bytes that points to a subset of itself.

Now you realloc to 200 bytes and the 100 bytes gets move to a different
memory range.

Then the embedded pointer would still retain its original value and no
longer point to a subset of itself at the new location.

Lets not ask the question why someone would do that.

And that's exactly the situation. With a linked list, the pointer to the
adjacent nodes is in the heap space.


- --
Pete Hall
pete@xxxxxxxxxxxxxx
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