https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121114
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #4) > BTW, does the standard require that in all standard headers where these > exceptions can be thrown the corresponding exception types have to be > defined, No > or are the __throw_* functions just trying to make the throwing > possible even in headers which don't need to declare those? I don't know if that's the original purpose of those functions, but it's certainly one benefit. > Is the use of extern __throw_* fndecls just a header optimization? > Could those class types be moved into new bits/ header files and included > from bits/funcexcept.h for C++26? They could be, yes, and they might need to be.
