boost::text::v1::transcode_to_utf32
// In header: <boost/text/transcode_algorithm.hpp> template<std::size_t N, typename Char, std::output_iterator< uint32_t > O> transcode_result< Char *, O > transcode_to_utf32(Char(&) arr, O out);
Copies the code points in the array arr to out, changing the encoding to UTF-32.
arr
out
