/ICSharpCode.Decompiler/Tests/CheckedUnchecked.cs

http://github.com/icsharpcode/ILSpy · C# · 117 lines · 89 code · 10 blank · 18 comment · 2 complexity · bf0c739457354f3f34817a6e7f06af7c MD5 · raw file

  1. // Copyright (c) AlphaSierraPapa for the SharpDevelop Team
  2. //
  3. // Permission is hereby granted, free of charge, to any person obtaining a copy of this
  4. // software and associated documentation files (the "Software"), to deal in the Software
  5. // without restriction, including without limitation the rights to use, copy, modify, merge,
  6. // publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
  7. // to whom the Software is furnished to do so, subject to the following conditions:
  8. //
  9. // The above copyright notice and this permission notice shall be included in all copies or
  10. // substantial portions of the Software.
  11. //
  12. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
  13. // INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14. // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
  15. // FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  16. // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  17. // DEALINGS IN THE SOFTWARE.
  18. using System;
  19. public class CheckedUnchecked
  20. {
  21. public int Operators(int a, int b)
  22. {
  23. int num = checked(a + b);
  24. int num2 = a + b;
  25. int num3 = checked(a - b);
  26. int num4 = a - b;
  27. int num5 = checked(a * b);
  28. int num6 = a * b;
  29. int num7 = a / b;
  30. int num8 = a % b;
  31. // The division operators / and % only exist in one form (checked vs. unchecked doesn't matter for them)
  32. return num * num2 * num3 * num4 * num5 * num6 * num7 * num8;
  33. }
  34. public int Cast(int a)
  35. {
  36. short num = checked((short)a);
  37. short num2 = (short)a;
  38. byte b = checked((byte)a);
  39. byte b2 = (byte)a;
  40. return num * num2 * b * b2;
  41. }
  42. public void ForWithCheckedIteratorAndUncheckedBody(int n)
  43. {
  44. checked
  45. {
  46. for (int i = n + 1; i < n + 1; i++)
  47. {
  48. n = unchecked(i * i);
  49. }
  50. }
  51. }
  52. public void ForWithCheckedInitializerAndUncheckedIterator(int n)
  53. {
  54. checked
  55. {
  56. int i = n;
  57. for (i -= 10; i < n; i = unchecked(i + 1))
  58. {
  59. n--;
  60. }
  61. }
  62. }
  63. public void ObjectCreationInitializerChecked()
  64. {
  65. this.TestHelp(new
  66. {
  67. x = 0,
  68. l = 0
  69. }, n => checked(new
  70. {
  71. x = n.x + 1,
  72. l = n.l + 1
  73. }));
  74. }
  75. public void ObjectCreationWithOneFieldChecked()
  76. {
  77. this.TestHelp(new
  78. {
  79. x = 0,
  80. l = 0
  81. }, n => new
  82. {
  83. x = checked(n.x + 1),
  84. l = n.l + 1
  85. });
  86. }
  87. public void ArrayInitializerChecked()
  88. {
  89. this.TestHelp<int[]>(new int[]
  90. {
  91. 1,
  92. 2
  93. }, (int[] n) => checked(new int[]
  94. {
  95. n[0] + 1,
  96. n[1] + 1
  97. }));
  98. }
  99. public T TestHelp<T>(T t, Func<T, T> f)
  100. {
  101. return f(t);
  102. }
  103. public void CheckedInArrayCreationArgument(int a, int b)
  104. {
  105. Console.WriteLine(new int[checked(a + b)]);
  106. }
  107. }