1// compile
2
3// Copyright 2019 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 p
8
9func f() {
10	var i int
11	var b *bool
12	var s0, s1, s2 string
13
14	if *b {
15		s2 = s2[:1]
16		i = 1
17	}
18	s1 = s1[i:-i+i] + s1[-i+i:i+2]
19	s1 = s0[i:-i]
20}
21