[Bug c++/104568] [10/11/12 Regression] ICE [c++20] caused by option "-std=c++20 -Wall" when operand of operator new has size equal to 0

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104568

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Make it
typedef int T[0];

constexpr bool
foo ()
{
  auto p = new T[0];
  delete p;
  return true;
}

constexpr bool a = foo ();
so that it is constant evaluated always, doesn't need -Wall then, just
-std=c++20 or -std=c++23.