Re: [Boost-users] SFINAE broken in Visual C++ Express?

From: Michael Linck (mgl_at_[hidden])
Date: 2007-10-30 20:13:52

I think we'd have to see the return value of has_key to solve this
mystery.  It has to match your, rather complex, return type, after all.

mike

On Tue, 2007-10-30 at 15:35 +0100, Ovanes Markarian wrote:
> Hello!
> 
> Does anybody else experience a problem using enable_if templates in
> Visual C++ Express 2005 SP1? I get compiler errors in this code:
> 
> 
>         template<class LookUpType_>
>         typename boost::enable_if_c<is_const, result_type>::type 
>             at(LookUpType_ const& key)const
>         {
>             return has_key(view_, key);
>         }
> 
>         template<class LookUpType_>
>         typename boost::disable_if_c<is_const, result_type>::type 
>             at(LookUpType_ const& key)
>         {
>             return has_key(view_, key);
>         }
> 
> It blames that type is not a member of enable_if_c or disable_if_c?
> This is really strance, since this should not be considered by
> compiler as a possible template instantiation. is_const is an enum
> value containing either true or false. 
> 
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users