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Fix Math.pow(-1, +Infinity) => NaN

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This commit is contained in:
Robert Krimen 2014-01-25 10:52:23 -08:00
parent 46f720d27b
commit 302b2f0cbf
2 changed files with 5 additions and 1 deletions
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2
builtin_math.go
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@ -110,7 +110,7 @@ func builtinMath_pow(call FunctionCall) Value {
// TODO Make sure this works according to the specification (15.8.2.13)
x := toFloat(call.Argument(0))
y := toFloat(call.Argument(1))
if x == 1 && math.IsInf(y, 0) {
if math.Abs(x) == 1 && math.IsInf(y, 0) {
return NaNValue()
}
return toValue_float64(math.Pow(x, y))

4
math_test.go
View File

@ -220,6 +220,10 @@ func TestMath_pow(t *testing.T) {
test(`Math.pow(-0, -1)`, "-Infinity")
test(`Math.pow(-0, -2)`, "Infinity")
test(`Math.pow(-1, 0.1)`, "NaN")
test(`
[ Math.pow(-1, +Infinity), Math.pow(1, Infinity) ];
`, "NaN,NaN")
}
func TestMath_round(t *testing.T) {