1 files changed, 38 insertions, 0 deletions
diff --git a/src/math/bits/example_test.go b/src/math/bits/example_test.go
new file mode 100644
index 0000000000..5d30f4b259
--- /dev/null
+++ b/src/math/bits/example_test.go
@@ -0,0 +1,38 @@
+// Copyright 2017 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 bits_test
+
+import (
+	"fmt"
+	"math/bits"
+)
+
+func ExampleLeadingZeros16() {
+	fmt.Println(bits.LeadingZeros16(0))
+	fmt.Println(bits.LeadingZeros16(1))
+	fmt.Println(bits.LeadingZeros16(256))
+	fmt.Println(bits.LeadingZeros16(65535))
+	// Output:
+	// 16
+	// 15
+	// 7
+	// 0
+}
+
+func ExampleLeadingZeros32() {
+	fmt.Println(bits.LeadingZeros32(0))
+	fmt.Println(bits.LeadingZeros32(1))
+	// Output:
+	// 32
+	// 31
+}
+
+func ExampleLeadingZeros64() {
+	fmt.Println(bits.LeadingZeros64(0))
+	fmt.Println(bits.LeadingZeros64(1))
+	// Output:
+	// 64
+	// 63
+}