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Diffstat (limited to 'libgo/go/math/tanh.go')
| -rw-r--r-- | libgo/go/math/tanh.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libgo/go/math/tanh.go b/libgo/go/math/tanh.go index 009a206..a825678 100644 --- a/libgo/go/math/tanh.go +++ b/libgo/go/math/tanh.go @@ -72,6 +72,13 @@ var tanhQ = [...]float64{ // Tanh(±Inf) = ±1 // Tanh(NaN) = NaN func Tanh(x float64) float64 { + if haveArchTanh { + return archTanh(x) + } + return tanh(x) +} + +func tanh(x float64) float64 { const MAXLOG = 8.8029691931113054295988e+01 // log(2**127) z := Abs(x) switch { |