RE: [boost] Re: variant - is there an easy way to tell if an object is a variant at compile time?

From: Brock Peabody (brock.peabody_at_[hidden])
Date: 2004-02-05 23:01:49

> -----Original Message-----
> From: boost-bounces_at_[hidden] [mailto:boost-bounces_at_[hidden]]
> On Behalf Of Eric Friedman

>    template <typename T> struct is_variant
>      : mpl::false_ {};
> 
>    template <BOOST_VARIANT_ENUM_PARAMS(typename T)>
>    struct is_variant< variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
>      : mpl::true_ {};
> 
> should do the trick. If this is deemed useful, I can include it in the
> next release. For now, BOOST_VARIANT_ENUM_PARAMS should cover you.

Yes that's much better.  I don't know why I was making it so difficult.  

Thanks!