I think the point about name mangling is very true. That's the
most important thing, being able to call all of the C++ functions.
I personally love that const and immutable are transitive in D. I
get annoyed in other languages when I have const objects
containing mutable objects, and no real protection from the
compiler from stopping the objects in the inside from being
mutated. The way I see it, C++ const is a weaker form of const
which doesn't complain about mutations enough.
I think if we could avoid putting head const in the language,
we'd be better off. If you ever really, really need to mutate
something inside a const type, you can cast away const. It will
rightly look ugly, and the compiler can complain that it's not
@safe.
