Function prev

include/boost/parser/detail/text/detail/algorithm.hpp:27–34

    template<typename I>
    auto prev(I it)
    {
#if BOOST_PARSER_DETAIL_TEXT_USE_CONCEPTS
        return std::ranges::prev(it);
#else
        return std::prev(it);
#endif
    }
    template<typename I>
    auto next(I it)
    {