math: fix pow10 comment, test portable Sqrt

R=r
CC= golang-dev, Charlie Dorian, golang-dev
http://codereview.appspot.com/184058

1 files changed, 9 insertions, 0 deletions

diff --git a/src/pkg/math/sqrt_test.go b/src/pkg/math/sqrt_test.go
new file mode 100644
index 000000000..84cbc169e
--- /dev/null
+++ b/src/pkg/math/sqrt_test.go
@@ -0,0 +1,9 @@
+// Copyright 2010 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package math
+
+// Make sqrtGo available for testing.
+
+func SqrtGo(x float64) float64 { return sqrtGo(x) }