From: David Abrahams (dave_at_[hidden])
Date: 2005-10-24 13:23:54
"Fernando Cacciola" <fernando_cacciola_at_[hidden]> writes:
> So the only choices I see are:
>
> o.rebind(rb)
>
> or
>
> o = optional<T&>(rb).
>
> And I think I like the rebind() better.
One more reason to keep the latter: don't you want to be able to put
optional's in std::containers? I think it's important that they be
proper values; disabling assignment altogether would be bad, and I
don't think I want optional<T&>'s assignment operator to deep-copy the
T.
-- Dave Abrahams Boost Consulting www.boost-consulting.com