[boost] Re: Re: Re: Re: Optional, tie, and iterator_adaptor

From: Andrei Alexandrescu (andrewalex_at_[hidden])
Date: 2003-09-03 18:27:54

"Hurd, Matthew" <hurdm_at_[hidden]> wrote in message > I use optional<T> quite
a bit and am glad T and optional<T> are different.
> Saves my bacon when I do silly things, especially when something
transitions
> from a T to an optional<T>.  Strongly typed maintenance is something I'm
> thankful for.
>
> T* and optional<T> substitutability seems fine to me.

By the way, could optional<T> use variant<T, SomeInsipidType> as a backend?

Andrei