1 // run 2 3 // Copyright 2014 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 8325: corrupted byte operations during optimization 8 // pass. 9 10 package main 11 12 const alphanum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" 13 14 func main() { 15 var bytes = []byte{10, 20, 30, 40, 50} 16 17 for i, b := range bytes { 18 bytes[i] = alphanum[b%byte(len(alphanum))] 19 } 20 21 for _, b := range bytes { 22 switch { 23 case '0' <= b && b <= '9', 24 'A' <= b && b <= 'Z': 25 default: 26 println("found a bad character", string(b)) 27 panic("BUG") 28 } 29 30 } 31 } 32
