Method match

extlibs/catch/include/catch/catch.hpp:3619–3626

        struct UnorderedEqualsMatcher : MatcherBase<std::vector<T>> {
            UnorderedEqualsMatcher(std::vector<T> const& target) : m_target(target) {}
            bool match(std::vector<T> const& vec) const override {
                // Note: This is a reimplementation of std::is_permutation,
                //       because I don't want to include <algorithm> inside the common path
                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);