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

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