I think the correct approach is to consider it a bug if functions do not set errno, or do not raise exceptions - that is, all of (b), (c) and (d) are bugs. This would allow math_errhandling to be MATH_ERRNO|MATH_ERREXCEPT unless translation units are compiled with options preventing this, and make the error handling options available consistent across the math.h functions supported by glibc. To conform with C99, at least one approach (errno or exceptions) must be consistently supported across all the functions, in any case.
I've reported bugs for all of the non-conformances I found. Cheers, Michael http://sources.redhat.com/bugzilla/show_bug.cgi?id=6759 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6776 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6777 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6778 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6779 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6780 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6781 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6782 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6783 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6783 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6783 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6785 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6786 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6787 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6788 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6792 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6793 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6794 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6795 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6796 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6797 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6798 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6799 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6801 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6801 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6803 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6803 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6804 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6805 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6806 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6807 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6808 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6809 http://sources.redhat.com/bugzilla/show_bug.cgi?id=6810 -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
