alt Hacker News> It's especially tragic because Clang already had the full C99 designated init feature set in C++ mode implemented long before C++20 and it worked just fine.
How did Clang handle differences between member declaration order and the order in which initializers appeared?
It simply reorders them, same behaviour as in C:
https://www.godbolt.org/z/ex138rh51
(the warnings in C++ mode had only been added after C++20)