| // run -gcflags=-d=checkptr | |
| // Copyright 2019 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 main | |
| import ( | |
| "reflect" | |
| "unsafe" | |
| ) | |
| var s []int | |
| func main() { | |
| s = []int{42} | |
| h := (*reflect.SliceHeader)(unsafe.Pointer(&s)) | |
| x := *(*int)(unsafe.Pointer(h.Data)) | |
| if x != 42 { | |
| panic(x) | |
| } | |
| } |