Can a C++ class determine whether it's on the stack or heap?

Question

I have

class Foo {
....
}

Is there a way for Foo to be able to separate out:

function blah() {
  Foo foo; // on the stack
         


        

Answer 1

To answer your question, a reliable way (assuming your aplication isn't using more thant one thread), assuming that everithing wich is not contained by your smart pointer isn't on the heap :

-> Overloading new, so that you ca store a list of all blocs allocated, with the size of each block. -> When the constructor of your smart pointer, search in wich block your this pointer belong. If it isn't in any block, you can say it's "on the stack" (actualy, it means it's not managed by you). Otherwise, you know where and when your pointer was allocated (if you wan't to look for orphan pointers and lasily free memory, or things like that..) It do not depend from the architechture.