> > Isn't an expensive-to-copy type supposed to be a class anyway? > > Well not always - see BigInt.
True. > A nothrow function may allocate memory, but allocating inside this(this) > would be a faux pas. So I can't .dup inside this(this)? Even the example in the docs does so: http://www.d-programming-language.org/struct.html#StructPostblit
