On Fri, 9 Sep 2016, Sage Weil wrote:
template<typename T, typename traits=denc_traits<T>>
struct denc_traits<std::list<T>> {
enum { supported = traits::supported };
...not sure if this is quite you're after, but you might be able to
accomplish something like that with template-using:
struct my_traits
{
enum class supported { feature0, feature1 };
};
template <typename T, typename Traits>
struct denc_traits;
template <typename T, typename Traits>
struct denc_traits
{
using supported = typename Traits::supported;
};
template <typename T>
using my_denc_traits = denc_traits<T, my_traits>;
int main()
{
my_denc_traits<int> bletch;
}
Hope that helps,
-Jesse
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