diff options
Diffstat (limited to 'src/pkg/math/expm1.go')
| -rw-r--r-- | src/pkg/math/expm1.go | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/pkg/math/expm1.go b/src/pkg/math/expm1.go index e9f833140..8f56e15cc 100644 --- a/src/pkg/math/expm1.go +++ b/src/pkg/math/expm1.go @@ -121,7 +121,9 @@ package math // Expm1(-Inf) = -1 // Expm1(NaN) = NaN // Very large values overflow to -1 or +Inf. -func Expm1(x float64) float64 { +func Expm1(x float64) float64 + +func expm1(x float64) float64 { const ( Othreshold = 7.09782712893383973096e+02 // 0x40862E42FEFA39EF Ln2X56 = 3.88162421113569373274e+01 // 0x4043687a9f1af2b1 @@ -140,12 +142,10 @@ func Expm1(x float64) float64 { ) // special cases - // TODO(rsc): Remove manual inlining of IsNaN, IsInf - // when compiler does it for us switch { - case x > MaxFloat64 || x != x: // IsInf(x, 1) || IsNaN(x): + case IsInf(x, 1) || IsNaN(x): return x - case x < -MaxFloat64: // IsInf(x, -1): + case IsInf(x, -1): return -1 } |