Method contains

tests/test_sequences_and_iterators.cpp:242–249

        float &operator[](size_t index) { return m_data[index]; }

        bool contains(float v) const {
            for (size_t i = 0; i < m_size; ++i) {
                if (v == m_data[i]) {
                    return true;
                }
            }
            return false;
        }

        Sequence reversed() const {
            Sequence result(m_size);