The C++ headers for the C library are changed. But the functions themselves?   -----Ursprüngliche Nachricht----- Von:blacktea hamburger via Std-Proposals <std-proposals_at_[hidden]> Gesendet:So 23.10.2022 14:27 Betreff:Re: [std-proposals] Character classification functions should return bool An:std-proposals_at_[hidden]; CC:blacktea hamburger <greenteahamburger_at_[hidden]>; Why? The C library needs to be changed because its implementation is not necessarily constexpr. On Sun, Oct 23, 2022 at 8:14 PM Ville Voutilainen <ville.voutilainen_at_[hidden] <mailto:ville.voutilainen_at_[hidden]> > wrote: On Sun, 23 Oct 2022 at 15:11, blacktea hamburger via Std-Proposals <std-proposals_at_[hidden] <mailto:std-proposals_at_[hidden]> > wrote: > > It's not impossible. For example, P0533R9 requires many changes to the C library. Where? It doesn't propose changes to the C library. -- Std-Proposals mailing list Std-Proposals_at_[hidden] https://lists.isocpp.org/mailman/listinfo.cgi/std-proposals