| // Copyright 2020 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. | |
| // Test that read-only data is indeed read-only. This | |
| // program attempts to modify read-only data, and it | |
| // should fail. | |
| package main | |
| import "unsafe" | |
| var s = "hello" | |
| func main() { | |
| println(s) | |
| *(*struct { | |
| p *byte | |
| l int | |
| })(unsafe.Pointer(&s)).p = 'H' | |
| println(s) | |
| } | |