Function UTF16StringToUTF8Internal

cpp/src/arrow/util/utf8.cc:149–153

}

std::string UTF16StringToUTF8Internal(std::u16string_view source) {
  std::string s;
  ::utf8::utf16to8(source.begin(), source.end(), std::back_inserter(s));
  return s;
}

std::u16string UTF8StringToUTF16Internal(std::string_view source) {
  std::u16string s;