1 // Copyright (c) 2017, the R8 project authors. Please see the AUTHORS file 2 // for details. All rights reserved. Use of this source code is governed by a 3 // BSD-style license that can be found in the LICENSE file. 4 package regress_37875803; 5 6 public class Regress { 7 8 private static int digitSub(int codePoint) { 9 int result = -888; 10 if ('a' <= codePoint && codePoint <= 'z') { 11 result = 10 + (codePoint - 'a'); 12 } else if ('A' <= codePoint && codePoint <= 'Z') { 13 result = 10 + (codePoint - 'A'); 14 } 15 if (result < 0) { 16 throw new RuntimeException("codePoint = " + codePoint + " result = " + result); 17 } 18 return result; 19 } 20 21 private static int digitSubLeft(int codePoint) { 22 int result = -888; 23 if ('a' <= codePoint && codePoint <= 'z') { 24 result = 10 + ('a' - codePoint); 25 } else if ('A' <= codePoint && codePoint <= 'Z') { 26 result = 10 + ('A' - codePoint); 27 } 28 if (result < 0) { 29 throw new RuntimeException("codePoint = " + codePoint + " result = " + result); 30 } 31 return result; 32 } 33 34 private static int digitAdd(int codePoint) { 35 int result = -888; 36 if ('a' <= codePoint && codePoint <= 'z') { 37 result = 10 + (codePoint + 'a'); 38 } else if ('A' <= codePoint && codePoint <= 'Z') { 39 result = 10 + (codePoint + 'A'); 40 } 41 if (result < 0) { 42 throw new RuntimeException("codePoint = " + codePoint + " result = " + result); 43 } 44 return result; 45 } 46 47 private static int digitOr(int codePoint) { 48 int result = -888; 49 if ('a' <= codePoint && codePoint <= 'z') { 50 result = 10 + (codePoint | 'a'); 51 } else if ('A' <= codePoint && codePoint <= 'Z') { 52 result = 10 + (codePoint | 'A'); 53 } 54 if (result < 0) { 55 throw new RuntimeException("codePoint = " + codePoint + " result = " + result); 56 } 57 return result; 58 } 59 60 public static void main(String[] args) { 61 System.out.println(digitSub((int) 'a')); 62 System.out.println(digitSub((int) 'A')); 63 System.out.println(digitSubLeft((int) 'a')); 64 System.out.println(digitSubLeft((int) 'A')); 65 System.out.println(digitAdd((int) 'a')); 66 System.out.println(digitAdd((int) 'A')); 67 System.out.println(digitOr((int) 'a')); 68 System.out.println(digitOr((int) 'A')); 69 } 70 } 71
