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

Every time you return from a function, any memory allocated on the stack by that function is deallocated. If you need to reduce the scope of a variable for some reason, you can just make a new smaller scope by creating a block with {}.

void function(void)
{
   int x;
   {
     int y;
   } // scope of y ends
} // scope of x ends