I'm just wondering how I would go about reserving a section of the heap so I can have linear access to classes of different types. Storage space--not too worried about wasting; each class I want to store only has a few int sized variables each and I'm not going to cry over a little padding.
Because classes are reference types, does that mean a union or an array would only hold a reference to that class? Is there a way for them to be squished up next to each other in a way that'd make iterating over them efficent? I could do this with structs (at least I think I can in D) except they're not polymorphic and structs don't remember their type internally like classes do when inside unions (I just tested this, I assume it's a feature not a bug?). I have a lot of elements in an array that I need to pass over constantly so if I can not break them up and not have to make up pretend internal polymorphism with switch statements inside functions then that'd both make my code look less like spaghetti and leave room for me to bog down my program with other crap. How do I do this in D?
