[Math] MATH-740 (FastMath's slow methods)

[Gilles Sadowski]

Hi.

I notice this code at the top of "FastMath.log1p":
---CUT---
        if (x == -1) {
            return x/0.0;   // -Infinity
        }

        if (x > 0 && 1/x == 0) { // x = Infinity
            return x;
        }
 ---CUT---

which I'm tempted to rewrite as:
---CUT---
        if (x == -1) {
            return Double.NEGATIVE_INFINITY;
        }

        if (x == Double.POSITIVE_INFINITY) {
            return Double.POSITIVE_INFINITY;
        }
---CUT---

Any objection?


Gilles

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