mirror of
https://github.com/golang/go
synced 2024-11-23 00:20:12 -07:00
33 lines
466 B
Go
33 lines
466 B
Go
|
// run
|
||
|
|
|
||
|
|
// Copyright 2022 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 (
|
||
|
|
"unsafe"
|
||
|
|
)
|
||
|
|
|
||
|
|
type Embedded struct {
|
||
|
|
B int
|
||
|
|
}
|
||
|
|
|
||
|
|
type S[K any] struct {
|
||
|
|
A K
|
||
|
|
Embedded
|
||
|
|
}
|
||
|
|
|
||
|
|
func showOffsets[K any](d *S[K]) {
|
||
|
|
o1 := unsafe.Offsetof(d.B)
|
||
|
|
o2 := unsafe.Offsetof(d.Embedded)
|
||
|
|
if o1 != o2 {
|
||
|
|
panic("offset mismatch")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
showOffsets(new(S[int]))
|
||
|
|
}
|