go source for verification 2026-05-22

test/fixedbugs/issue10135.go

@@ -0,0 +1,25 @@
+// run
+
+// Copyright 2015 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.
+
+// Issue 10135: append a slice with zero-sized element used
+// to always return a slice with the same data pointer as the
+// old slice, even if it's nil, so this program used to panic
+// with nil pointer dereference because after append, s is a
+// slice with nil data pointer but non-zero len and cap.
+
+package main
+
+type empty struct{}
+
+func main() {
+	var s []empty
+
+	s = append(s, empty{})
+
+	for _, v := range s {
+		_ = v
+	}
+}