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lbittarello
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In certain systems, our compiled functions occasionally produce nonsense when inputs are invalid. For example,
glum.TweedieDistribution(1.5).deviance([0], [0])might put out -2 instead of NaN. It turns out that fast math causes the compiler to make assumptions that break down when inputs are invalid.This PR proposes two changes:
cpowflag, so that exponentiation doesn't generate complex numbers.