--- /dev/null
+// Copyright 2014 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.
+
+// Enumeration with an offset.
+// Also includes a duplicate.
+
+package main
+
+import "fmt"
+
+type Number int
+
+const (
+ _ Number = iota
+ One
+ Two
+ Three
+ AnotherOne = One // Duplicate; note that AnotherOne doesn't appear below.
+)
+
+func main() {
+ ck(One, "One")
+ ck(Two, "Two")
+ ck(Three, "Three")
+ ck(AnotherOne, "One")
+ ck(127, "Number(127)")
+}
+
+func ck(num Number, str string) {
+ if fmt.Sprint(num) != str {
+ panic("number.go: " + str)
+ }
+}