On Fri, Jul 25, 2008 at 12:02 PM, Andreas Jaeger <aj@xxxxxxxxxx> wrote: > "Michael Kerrisk" <mtk.manpages@xxxxxxxxxxxxxx> writes: > >> On Fri, Jul 25, 2008 at 11:30 AM, Andreas Jaeger <aj@xxxxxxxxxx> wrote: >>> "Michael Kerrisk" <mtk.manpages@xxxxxxxxxxxxxx> writes: >>> >>>> [CC+= Andries] >>>> >>>> On Mon, Jul 21, 2008 at 12:23 PM, Michael Kerrisk >>>> <mtk.manpages@xxxxxxxxxxxxxx> wrote: >>>>> [Ooops -- wrong list CCed on previous mail; and this time, I'll update >>>>> the draft number] >>>>> >>>>> Andreas, >>>>> >>>>> The latest version of the page is below. >>> >>> This one looked ok to me, >> >> Thanks Andreas. >> >> So I've been testing all of the math functions lately (on glibc 2.8), >> and I discover the following: >> >> a) on error, many functions set errno AND raise an exception (fetestexcept()). >> b) on error, a few functions set errno but DON"T raise an exception >> (fetestexcept()). >> c) on error, a few functions DON'T set errno BUT DO raise an exception >> (fetestexcept()). >> d) on error, a very few functions pursue a mixture of all of the >> above, depending on the error. >> >> My math_error.7 page currently implies that all functions should do >> a). Clearly I'll need to amend that. >> >> But the main question is, should I raise a pile of glibc bugs for the >> functions in cases b), c), and d)? > > I suggest to discuss on the libc-alpha mailing list first. Okay -- I have done so. > We have not done the exception handling properly. errno setting should > be correct, we have tests for these, Well, for example, according to my tests, cos(3) does not set errno. Is that what you would have expected? -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ man-pages online: http://www.kernel.org/doc/man-pages/online_pages.html Found a bug? http://www.kernel.org/doc/man-pages/reporting_bugs.html -- 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
