1// run
2
3// Copyright 2011 The Go Authors. All rights reserved.
4// Use of this source code is governed by a BSD-style
5// license that can be found in the LICENSE file.
6
7// Issue 1608.
8// Size used to be -1000000000.
9
10package main
11
12import "unsafe"
13
14func main() {
15	var a interface{} = 0
16	size := unsafe.Sizeof(a)
17	if size != 2*unsafe.Sizeof((*int)(nil)) {
18		println("wrong size: ", size)
19	}
20}
21