3 ms·

Upon which some people may rely...

• int_19h 2y ago
  People will only rely on UB when it is well defined by a particular implementation, either explicitly or because of a long history of past use. E.g. using unions for type punning in gcc, or allowing methods to be called on null pointers in MSVC. But there's nothing like that here.
  • pjmlp 2y ago
    Until a compiler version comes out and since it was UB anyway, the compiler sundenly now behaves in a different way.