boost::text::collation_search_result
// In header: <boost/text/collation_search.hpp> template<code_point_iter I, std::sentinel_for< I > S = I> struct collation_search_result : public boost::text::subrange< I > { // types typedef I iterator; typedef S sentinel; // construct/copy/destruct collation_search_result(); collation_search_result(iterator, iterator); };