hfinkel added a comment. In https://reviews.llvm.org/D39611#915560, @efriedma wrote:
> > The POSIX docs all have language like this for complex calls: > > "No errors are defined." > > I would not trust the POSIX documentation. > > carg() is an alias for atan2(), and cabs() is an alias for hypot(), so they > should be marked the same way. (On glibc, cabs/hypot will set errno; not > sure about carg/atan2.) That seems like a bug if they set errno. The complex versions shouldn't set errno. glibc's docs say that neither hypot or set errno (although the POSIX spec allows for it in theory). > For the others transcendental functions... they can raise exceptions in some > cases, so they could in theory set errno, but it looks like they don't on > glibc? Not sure if that's documented anywhere, or something we should depend > on. In general, because all of these functions are well defined over the entire complex domain, they don't have errors. The "no errors defined" is likely correct. https://reviews.llvm.org/D39611 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
