1// Copyright 2020 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5// Test that read-only data is indeed read-only. This
6// program attempts to modify read-only data, and it
7// should fail.
8
9package main
10
11import "unsafe"
12
13var s = "hello"
14
15func main() {
16	println(s)
17	*(*struct {
18		p *byte
19		l int
20	})(unsafe.Pointer(&s)).p = 'H'
21	println(s)
22}
23