How to deallocate variables on the stack?

Question

Is there a way to deallocate variables and/or objects created on the stack? I am specifically talking about the stack not the heap.

I do not want to debate whether this

Answer 1

No, it's not possible to deallocate a stack variable before it goes out of scope in portable C++.

It would be possible to do something retarded and non-portable with inline assembly like this (example works only with x86, only with Visual Studio):

int* ptr;

__asm {
    sub esp, sizeof(int)           // allocate variable
    mov [esp + sizeof(int)], esp   // move its address into ptr
}

*ptr = 4;                          // assign 4 to the variable
cout << *ptr << endl;              // print variable

__asm {
    add esp, sizeof(int)           // deallocate variable
}

But don't, there are too many problems to name.