/test/lib/numeric/number/test_number107.e

http://github.com/tybor/Liberty · Specman e · 83 lines · 49 code · 7 blank · 27 comment · 0 complexity · 41f28e196359d3e58ad37f47e7613349 MD5 · raw file 

    

  1. -- This file is part of SmartEiffel The GNU Eiffel Compiler Tools and Libraries.
    2. 

  2. -- See the Copyright notice at the end of this file.
    3. 

  3. --
    4. 

  4. class TEST_NUMBER107
    5. 

  5.    --
    6. 

  6.    -- Test of depassement of INTEGER_64_NUMBER capacity
    7. 

  7.    -- during a multiplication between a small integer
    8. 

  8.    -- and an integer which is symbolised by a large integer
    9. 

  9.    -- Result is a BIG_INTEGER_NUMBER
    10. 

  10.    --
    11. 

  11. 

  12. insert
    13. 

  13.    EIFFELTEST_TOOLS
    14. 

  14.    ANY
    15. 

  15.    PLATFORM
    16. 

  16. 

  17. create {}
    18. 

  18.    make
    19. 

  19. 

  20. feature {ANY}
    21. 

  21.    make
    22. 

  22.       local
    23. 

  23.          n1, n2, m1, m2: NUMBER
    24. 

  24.       do
    25. 

  25.          n1 := nt.from_integer_64(Maximum_integer_64) @+ 1
    26. 

  26.          assert(n1.is_integer_general_number)
    27. 

  27.          assert(not n1.is_integer_64)
    28. 

  28.          n2 := nt.from_integer_64(Maximum_integer_64)
    29. 

  29.          m1 := n1 * n2
    30. 

  30.          m2 := n2 * n1
    31. 

  31.          assert(m1.is_integer_general_number)
    32. 

  32.          assert(not m1.is_integer_64)
    33. 

  33.          assert(m1.is_positive)
    34. 

  34.          assert(m2.is_equal(m1))
    35. 

  35.          n2 := nt.from_integer_64(Minimum_integer_64)
    36. 

  36.          m1 := n1 * n2
    37. 

  37.          m2 := n2 * n1
    38. 

  38.          assert(m1.is_integer_general_number)
    39. 

  39.          assert(not m1.is_integer_64)
    40. 

  40.          assert(not m1.is_positive)
    41. 

  41.          assert(m2.is_equal(m1))
    42. 

  42.          n1 := nt.from_integer_64(Minimum_integer_64) @- 1
    43. 

  43.          assert(n1.is_integer_general_number)
    44. 

  44.          assert(not n1.is_integer_64)
    45. 

  45.          n2 := nt.from_integer_64(Maximum_integer_64)
    46. 

  46.          m1 := n1 * n2
    47. 

  47.          m2 := n2 * n1
    48. 

  48.          assert(m1.is_integer_general_number)
    49. 

  49.          assert(not m1.is_integer_64)
    50. 

  50.          assert(not m1.is_positive)
    51. 

  51.          assert(m2.is_equal(m1))
    52. 

  52.          n2 := nt.from_integer_64(Minimum_integer_64)
    53. 

  53.          m1 := n1 * n2
    54. 

  54.          m2 := n2 * n1
    55. 

  55.          assert(m1.is_integer_general_number)
    56. 

  56.          assert(not m1.is_integer_64)
    57. 

  57.          assert(m1.is_positive)
    58. 

  58.          assert(m2.is_equal(m1))
    59. 

  59.       end
    60. 

  60. 

  61. 

  62. 

  63.    nt: NUMBER_TOOLS
    64. 

  64. 

  65. end -- class TEST_NUMBER107
    66. 

  66. --
    67. 

  67. -- ------------------------------------------------------------------------------------------------------------------------------
    68. 

  68. -- Copyright notice below. Please read.
    69. 

  69. --
    70. 

  70. -- SmartEiffel is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License,
    71. 

  71. -- as published by the Free Software Foundation; either version 2, or (at your option) any later version.
    72. 

  72. -- SmartEiffel is distributed in the hope that it will be useful but WITHOUT ANY WARRANTY; without even the implied warranty
    73. 

  73. -- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have
    74. 

  74. -- received a copy of the GNU General Public License along with SmartEiffel; see the file COPYING. If not, write to the Free
    75. 

  75. -- Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
    76. 

  76. --
    77. 

  77. -- Copyright(C) 1994-2002: INRIA - LORIA (INRIA Lorraine) - ESIAL U.H.P.       - University of Nancy 1 - FRANCE
    78. 

  78. -- Copyright(C) 2003-2006: INRIA - LORIA (INRIA Lorraine) - I.U.T. Charlemagne - University of Nancy 2 - FRANCE
    79. 

  79. --
    80. 

  80. -- Authors: Dominique COLNET, Philippe RIBET, Cyril ADRIAN, Vincent CROIZIER, Frederic MERIZEN
    81. 

  81. --
    82. 

  82. -- http://SmartEiffel.loria.fr - SmartEiffel@loria.fr
    83. 

  83. -- ------------------------------------------------------------------------------------------------------------------------------
    84.