1// run
2
3// Copyright 2009 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
7package main
8
9func shift(x int) int { return 1 << (1 << (1 << (uint(x)))) }
10
11func main() {
12	if n := shift(2); n != 1<<(1<<(1<<2)) {
13		println("bad shift", n)
14		panic("fail")
15	}
16}
17