Method match

lib/catch2/catch.hpp:3719–3724

        struct UnorderedEqualsMatcher : MatcherBase<std::vector<T, AllocMatch>> {
            UnorderedEqualsMatcher(std::vector<T, AllocComp> const& target) : m_target(target) {}
            bool match(std::vector<T, AllocMatch> const& vec) const override {
                if (m_target.size() != vec.size()) {
                    return false;
                }
                return std::is_permutation(m_target.begin(), m_target.end(), vec.begin());
            }

            std::string describe() const override {
                return "UnorderedEquals: " + ::Catch::Detail::stringify(m_target);