https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70352
--- Comment #1 from Mitsuru Kariya <kariya_mitsuru at hotmail dot com> --- Sorry, I forgot to paste an error message. ========================= error message ========================= prog.cc: In function 'int main()': prog.cc:3:19: error: invalid use of 'auto' auto p = new (auto)(42); ^~~~ ========================= error message =========================