[Bug c++/93989] [c++20] Error initializing trivial types in constexpr constructor

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93989

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Further reduced:

struct bstring
{
  char  buf {};
  char* ptr = buf;
};

void test01()
{
  constexpr bstring v1{};
}