mirror of
https://github.com/golang/go
synced 2024-11-26 17:36:56 -07:00
24 lines
395 B
Go
24 lines
395 B
Go
|
// 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)
|
||
|
|
}
|
||
|
|
}
|