Heap Versus Stack
Lots of books start the discussion about reference types versus value types by pointing out their different memory-allocation characteristics. To say the least, this is a weird thing to do because this is truly an implementation detail. So, the first decision factor when choosing between a reference type and a value type should concentrate on the intended semantics as opposed to potential benefits in terms of memory-allocation and memory-deallocation patterns.
We should pay some attention to the way things work on this level, too. Here’s the deal:
Value types (such as structs) are stack allocated.
Reference types (such as classes) ...