Re: Report bugs for variations in error handling in math functions?

["Michael Kerrisk" <mtk.manpages-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>]

On Mon, Aug 4, 2008 at 7:48 AM, Michael Kerrisk
<mtk.manpages-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> On Thu, Jul 31, 2008 at 4:02 PM, Michael Kerrisk
> <mtk.manpages-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>>> 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.
>
> What I really should have said here is "non-conformances and
> deviations from the/my ideal that all errors would be reported both
> via errno and exceptions".  Anyway, one for the list:
>
> http://sources.redhat.com/bugzilla/show_bug.cgi?id=6814

A tabular summary of what I found is provided here:

http://linux-man-pages.blogspot.com/2008/08/math-functions-and-error-reporting.html

Cheers,

Michael

-- 
Michael Kerrisk
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