Hi, Recently, I realized that several "dup" methods in D2's phobos are declared like the one for BitArray:
@property BitArray dup() My question is why it is declared without "const"? Is it a bug or is there a reason for it? I can think of a case where one only has implemented a shallow copy and wants to omit the const due to the involved transitivity, but this shouldn't be the case for BitArray (the underlying array is dup'ed). Is there a general rule/recommendation when to make a dup method const and when not? My problem arises in a copy constructor for a struct S which takes a const(S) instance. But as S has a BitArray member, duping is not allowed, so I need a way to duplicate a const(BitArray) object. Matthias
