Chris Metcalf 0af797def3 math: support platforms with limited FP rounding or exception support ...

For some tests, just claim that fetestexcept() always returns true,
so the rest of the test can be compiled.

For libm-test, provide known bogus values for unsupported rounding
modes, so fesetround() will return failure.

Elsewhere, just add some #ifdefs to avoid code that uses particular
FP exceptions if the exceptions aren't supported.

2012-05-17 08:50:41 -04:00

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