https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117501
--- Comment #6 from Marek Polacek <mpolacek at gcc dot gnu.org> --- And we want this instead: struct QQQ q = {.data={._M_len=0, ._M_str=0}}; <<cleanup_point struct QQQ q = {.data={._M_len=0, ._M_str=0}};>>;