Function key

example/cacheHierarchy/fkYAML/node.hpp:10447–10449

@brief Get the mapping key node pointed by the base iterator. @return Reference to the mapping key node.

    /// @brief Get the mapping key node pointed by the base iterator.
    /// @return Reference to the mapping key node.
    typename Iterator::reference key() const {
        return m_base_iterator.key();
    }

    /// @brief Get the mapping value node pointed by the base iterator.
    /// @return Reference to the mapping value node.