[Bug libstdc++/105562] [12/13 Regression] std::function::_M_invoker may be used uninitialized in std::regex move with -fno-strict-aliasing since r12-6216-g5a431b60d1f22199

[andrey.vihrov at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105562

--- Comment #2 from Andrey Vihrov <andrey.vihrov at gmail dot com> ---
Sorry, even

  std::regex a(".");

alone is enough to trigger the warnings.