From: Joel de Guzman (joel_at_[hidden])
Date: 2005-03-09 11:20:05
David Abrahams wrote:
> Joel de Guzman <joel_at_[hidden]> writes:
>
>>Perhaps do as the tuples do?
>>
>> [123] <- a non-empty optional<int>
>> [] <- an empty optional<T>
>
>
> 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>
>
Nice!
I think the variant needs to follow. What does variant do?
Cheers,
-- Joel de Guzman http://www.boost-consulting.com http://spirit.sf.net