Could you please let me know which one is correct?
$ clang-format foo.cpp 
struct func_traits_impl<Ret (C::*)(Args...) const> {};
$ clang-format-19 foo.cpp                                                                               
struct func_traits_impl<Ret (C:: *)(Args...) const> {};
$ clang-format-19 --version
Debian clang-format version 19.0.0 (++20240527100630+434ee06d7761-1~exp1~20240527220812.2113)