Re: [boost] [optional] update

From: gregod_at_[hidden]
Date: 2003-09-17 10:04:25

On Wednesday 17 September 2003 10:57 am, Mat Marcus wrote:
>    * Safe optional<bool>'s as tri-bools would be quite useful to me. I
> personally would sacrifice the convenience of testing without using
> is_initialized() to gain tri-bools but I don't want to cover old
> territory. Perhaps there's some other way of making optional<bool>'s
> safer to use. What would you think of, say, using enable_if (or better
> disable_if) to disable implicit bool conversion and operator! for when
> T == bool (or when T already is_convertible to bool)?
>
>  - Mat

Why not use a real tribool? There's one in the sandbox.

        Doug