Function WcsToUtf8

cpp/src/arrow/flight/sql/odbc/odbc_impl/encoding.h:120–134

  result->assign(data, data + length_in_bytes);
}
ARROW_UNSUPPRESS_DEPRECATION_WARNING

inline void WcsToUtf8(const void* wcs_string, size_t length_in_code_units,
                      std::vector<uint8_t>* result) {
  switch (GetSqlWCharSize()) {
    case sizeof(char16_t):
      return WcsToUtf8<char16_t>(wcs_string, length_in_code_units, result);
    case sizeof(char32_t):
      return WcsToUtf8<char32_t>(wcs_string, length_in_code_units, result);
    default:
      assert(false);
      throw DriverException("Encoding is unsupported, SQLWCHAR size: " +
                            std::to_string(GetSqlWCharSize()));
  }
}

inline void WcsToUtf8(const void* wcs_string, std::vector<uint8_t>* result) {
  return WcsToUtf8(wcs_string, wcsstrlen(wcs_string), result);