From: Peter Dimov (pdimov_at_[hidden])
Date: 2005-03-09 09:29:17
David Abrahams wrote:
> If you want to be unambiguous, it has to be more like:
>
> [hello] <- a non-empty optional<std::string>
> [] <- a non-empty optional<std::string> (the string is empty)
> _ <- an empty optional<T>
My preference is
hello
_
A string can never be output "correctly", no matter what the delimiters are
("a] [b"). I'd concentrate on making optional<X> (reasonably) bi-directional
when X is bi-directional.