Function main

01.29-optional4/main.cpp:85–103

  not std::is_trivially_destructible_v<Not_TriviallyDestructible>);

int main()
{
#if not defined(__clang__) && not defined(_MSC_VER) &&               \
  not(defined(__GNUC__) && !defined(__clang__))
  static_assert(
    not std::is_copy_constructible_v<optional<NotCopyable>>);
  static_assert(std::is_copy_constructible_v<optional<int>>);

  static_assert(not std::is_trivially_destructible_v<
                optional<Not_TriviallyDestructible>>);
  static_assert(std::is_trivially_destructible_v<optional<int>>);

  optional<Not_TriviallyDestructible> no{};
  optional<COMLike>                   o{};

#else
#  pragma message("not supported")
#endif
}