Re: [boost] [static_if] Is there interest in a `static if` emulation library?

On 02 Sep 2014, at 8:58, Roland Bock <rbock@eudoxos.de> wrote:

On 2014-09-02 03:27, Lorenzo Caminiti wrote:

You could use inheritance. If the condition is true, you inherit from a struct that provides the data member, otherwise you inherit from a struct that does not. Ugly, I know, but it works if inheritance is an option for you.

That’s what I’m doing, but as you say, it is ugly: template <typename Policy> using proxy_base_t = std::conditional_t< has(Policy::requirements, features::raw_access), proxy_raw_access<proxy_nodot<Policy>>, proxy_nodot<Policy>>; template <typename Policy> class proxy : public proxy_detail::proxy_base_t<Policy> { … }; Sebastian