1 files changed, 34 insertions, 0 deletions
diff --git a/src/go/doc/testdata/examples/iota.go b/src/go/doc/testdata/examples/iota.go
new file mode 100644
index 0000000..c878b77
--- /dev/null
+++ b/src/go/doc/testdata/examples/iota.go
@@ -0,0 +1,34 @@
+// Copyright 2021 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 foo_test
+
+const (
+	a = iota
+	b
+)
+
+const (
+	c = 3
+	d = 4
+)
+
+const (
+	e = iota
+	f
+)
+
+// The example refers to only one of the constants in the iota group, but we
+// must keep all of them because of the iota. The second group of constants can
+// be trimmed. The third has an iota, but is unused, so it can be eliminated.
+
+func Example() {
+	_ = b
+	_ = d
+}
+
+// Need two examples to hit the playExample function.
+
+func Example2() {
+}