|  | // errorcheck | 
|  |  | 
|  | // Copyright 2012 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. | 
|  |  | 
|  | // Issue 4251: slice with inverted range is an error. | 
|  |  | 
|  | package p | 
|  |  | 
|  | func F1(s []byte) []byte { | 
|  | return s[2:1]		// ERROR "invalid slice index|inverted slice range" | 
|  | } | 
|  |  | 
|  | func F2(a [10]byte) []byte { | 
|  | return a[2:1]		// ERROR "invalid slice index|inverted slice range" | 
|  | } | 
|  |  | 
|  | func F3(s string) string { | 
|  | return s[2:1]		// ERROR "invalid slice index|inverted slice range" | 
|  | } |