math/pow10: remove overlapping boundary (n=0)

Both the first and second conditions include n=0, creating an
implicit logic that relies on order of evaluation.

Change-Id: Iefbc25a676242fabf272203a3e845363585bff56
Reviewed-on: https://go-review.googlesource.com/c/go/+/730060
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Robert Griesemer <gri@google.com>

diff --git a/src/math/pow10.go b/src/math/pow10.go
index c31ad8dbc778fe5dbd2a676645019b7ac0e91974..6f84db002370203c7dfd0afea0c820a541f3eac8 100644 (file)
--- a/src/math/pow10.go
+++ b/src/math/pow10.go
@@ -33,7 +33,7 @@ func Pow10(n int) float64 {
                return pow10postab32[uint(n)/32] * pow10tab[uint(n)%32]
        }
 
-       if -323 <= n && n <= 0 {
+       if -323 <= n && n < 0 {
                return pow10negtab32[uint(-n)/32] / pow10tab[uint(-n)%32]
        }