Function gdv_fn_dec_to_string

cpp/src/gandiva/gdv_function_stubs.cc:221–234

}

char* gdv_fn_dec_to_string(int64_t context, int64_t x_high, uint64_t x_low,
                           int32_t x_scale, int32_t* dec_str_len) {
  arrow::Decimal128 dec(arrow::BasicDecimal128(x_high, x_low));
  std::string dec_str = dec.ToString(x_scale);
  *dec_str_len = static_cast<int32_t>(dec_str.length());
  char* ret = reinterpret_cast<char*>(gdv_fn_context_arena_malloc(context, *dec_str_len));
  if (ret == nullptr) {
    std::string err_msg = "Could not allocate memory for string: " + dec_str;
    gdv_fn_context_set_error_msg(context, err_msg.data());
    return nullptr;
  }
  memcpy(ret, dec_str.data(), *dec_str_len);
  return ret;
}

GANDIVA_EXPORT
const char* gdv_fn_base64_encode_binary(int64_t context, const char* in, int32_t in_len,