Class Ds

include/matchit.h:1264–1274

        template <typename... Patterns>
        class Ds
        {
        public:
            constexpr explicit Ds(Patterns const &...patterns) : mPatterns{patterns...} {}
            constexpr auto const &patterns() const { return mPatterns; }

            using Type = std::tuple<InternalPatternT<Patterns>...>;

        private:
            Type mPatterns;
        };

        template <typename... Patterns>
        constexpr auto ds(Patterns const &...patterns) -> Ds<Patterns...>