erichkeane added a comment. In https://reviews.llvm.org/D45383#1062014, @efriedma wrote:
> > I don't see redeclaring the latter 3 as being disallowed, > > It is in fact disallowed by the standard, in the section describing > va_start/va_arg/va_end/va_copy: "If a macro definition is suppressed in order > to access an actual function, or a program defines an external identifier > with the same name, the behavior is undefined." The C spec seems to overload the usage of 'macro' a few times there. I believe it is permissible to implement va_copy and va_end as a function, isn't it? The first sentence of that section says va_start/va_arg must be implemented as "macros, not functions", but va_copy/va_end can be identifiers with external linkage. Repository: rC Clang https://reviews.llvm.org/D45383 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
