"Michael Kerrisk" <mtk.manpages@xxxxxxxxxxxxxx> writes:
> Well, for example, according to my tests, cos(3) does not set errno.
> Is that what you would have expected?
No, I wouldn't. And double checking, it's the other way round :-(. We
test the exception handling, not the error handling, so tests like
(libc/math/libm-test.inc) these
TEST_f_f (cos, plus_infty, nan_value, INVALID_EXCEPTION);
TEST_f_f (cos, minus_infty, nan_value, INVALID_EXCEPTION);
test that cos with input plus/minus infinity returns a NaN and raises
and invalid exception which is tested with fetestexcept. And if you
have different results, please tell me,
Andreas
--
Andreas Jaeger, Director Platform/openSUSE, aj@xxxxxxx
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