Re: [Boost-users] Problem with type traits

From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2008-07-21 14:31:07

AMDG

Robert Dailey wrote: 
>
>     typename is legal because the or_ is qualified.  It doesn't matter
>     that boost::mpl is a namespace.  (Don't you just love these
>     intuitive rules)
>
>
> Mind emphasizing a bit? What do you mean by the or_ being qualified? 
> You mean because I access it through namespace scope?

Yes.

Legal:
    typedef typename boost::mpl::or_<...> type;
Not legal:
    using boost::mpl::or_;
    typedef typename or_<...> type;

In Christ,
Steven Watanabe