Method operator--

lesson6-Segmentation/json.hpp:11473–11476

post-decrement (it--)

    /// post-decrement (it--)
    json_reverse_iterator const operator--(int)
    {
        return static_cast<json_reverse_iterator>(base_iterator::operator--(1));
    }

    /// pre-decrement (--it)
    json_reverse_iterator& operator--()