message: test::array must declare no constructors to be an aggregate in C++20
diff: @@ -55,8 +55,6 @@ namespace test {
  value_type elems_[N > 0 ? N : 1];
  - // No explicit construct/copy/destroy for aggregate type
  - RANGES_CXX14_CONSTEXPR array() = default;
  RANGES_CXX14_CONSTEXPR void fill(const value_type& u)
  {
  ranges::fill_n(elems_, N, u);
  