| Russ Cox | 5b63ce4 | 2014-08-11 15:24:36 -0400 | [diff] [blame] | 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 | } |
