boost::text::v1::normalize
// In header: <boost/text/normalize.hpp> template<nf Normalization, code_point_range R, std::output_iterator< uint32_t > O> O normalize(R && r, O out);
Writes sequence r in Unicode normalization form Normalization to out.
r
Normalization
out
See Also:
https://unicode.org/notes/tn5