| 949 | /// Returns sizeof...(Ts) if none match. |
| 950 | template <template <typename> class Predicate, typename... Ts> |
| 951 | constexpr int constexpr_first() { |
| 952 | return constexpr_impl::first(0, Predicate<Ts>::value...); |
| 953 | } |
| 954 | |
| 955 | /// Return the index of the last type in Ts which satisfies Predicate<T>, or -1 if none match. |
| 956 | template <template <typename> class Predicate, typename... Ts> |