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delay.c

delay.c 7.3 KB
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  1. # /* Copyright (C) 2002
    2. 

  2. #  * Housemarque Oy
    3. 

  3. #  * http://www.housemarque.com
    4. 

  4. #  *
    5. 

  5. #  * Distributed under the Boost Software License, Version 1.0. (See
    6. 

  6. #  * accompanying file LICENSE_1_0.txt or copy at
    7. 

  7. #  * http://www.boost.org/LICENSE_1_0.txt)
    8. 

  8. #  */
    9. 

  9. #
    10. 

  10. # /* Revised by Paul Mensonides (2002) */
    11. 

  11. #
    12. 

  12. # /* See http://www.boost.org for most recent version. */
    13. 

  13. #
    14. 

  14. # /* The time complexity of DELAY(N) is O(2^N).
    15. 

  15. #  *
    16. 

  16. #  * Handy when recompiles are too fast to take a coffee break. :)
    17. 

  17. #  *
    18. 

  18. #  * Template metaprogramming can be used for implementing similar
    19. 

  19. #  * delays. Unfortunately template instantiation consumes memory,
    20. 

  20. #  * therefore compilers usually fail to fully compile long template
    21. 

  21. #  * based delays, because they run out of memory.
    22. 

  22. #  *
    23. 

  23. #  * On many compilers (e.g. g++, MSVC++), this macro takes only a
    24. 

  24. #  * small amount of memory to preprocess. On some compilers (e.g.
    25. 

  25. #  * MWCW), however, this macro seems to consume huge amounts of
    26. 

  26. #  * memory.
    27. 

  27. #  */
    28. 

  28. #
    29. 

  29. # include <boost/preprocessor/arithmetic/dec.hpp>
    30. 

  30. # include <boost/preprocessor/cat.hpp>
    31. 

  31. # include <boost/preprocessor/control/while.hpp>
    32. 

  32. # include <boost/preprocessor/facilities/empty.hpp>
    33. 

  33. # include <boost/preprocessor/tuple/elem.hpp>
    34. 

  34. #
    35. 

  35. # ifndef DELAY_MAX
    36. 

  36. # define DELAY_MAX 14
    37. 

  37. # endif
    38. 

  38. #
    39. 

  39. # define DELAY(N) BOOST_PP_TUPLE_ELEM(2, 0, (BOOST_PP_EMPTY, BOOST_PP_WHILE(DELAY_C, BOOST_PP_CAT(DELAY_F, N), BOOST_PP_DEC(N))))()
    40. 

  40. #
    41. 

  41. # define DELAY_C(D, N) N
    42. 

  42. #
    43. 

  43. # define DELAY_F0(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    44. 

  44. # define DELAY_F1(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    45. 

  45. # define DELAY_F2(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    46. 

  46. # define DELAY_F3(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    47. 

  47. # define DELAY_F4(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    48. 

  48. # define DELAY_F5(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    49. 

  49. # define DELAY_F6(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    50. 

  50. # define DELAY_F7(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    51. 

  51. # define DELAY_F8(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    52. 

  52. # define DELAY_F9(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    53. 

  53. # define DELAY_F10(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    54. 

  54. # define DELAY_F11(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    55. 

  55. # define DELAY_F12(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    56. 

  56. # define DELAY_F13(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    57. 

  57. # define DELAY_F14(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    58. 

  58. # define DELAY_F15(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    59. 

  59. # define DELAY_F16(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    60. 

  60. # define DELAY_F17(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    61. 

  61. # define DELAY_F18(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    62. 

  62. # define DELAY_F19(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    63. 

  63. # define DELAY_F20(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    64. 

  64. # define DELAY_F21(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    65. 

  65. # define DELAY_F22(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    66. 

  66. # define DELAY_F23(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    67. 

  67. # define DELAY_F24(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    68. 

  68. # define DELAY_F25(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    69. 

  69. # define DELAY_F26(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    70. 

  70. # define DELAY_F27(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    71. 

  71. # define DELAY_F28(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    72. 

  72. # define DELAY_F29(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    73. 

  73. # define DELAY_F30(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    74. 

  74. # define DELAY_F31(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    75. 

  75. # define DELAY_F32(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    76. 

  76. # define DELAY_F33(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    77. 

  77. # define DELAY_F34(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    78. 

  78. # define DELAY_F35(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    79. 

  79. # define DELAY_F36(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    80. 

  80. # define DELAY_F37(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    81. 

  81. # define DELAY_F38(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    82. 

  82. # define DELAY_F39(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    83. 

  83. # define DELAY_F40(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    84. 

  84. # define DELAY_F41(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    85. 

  85. # define DELAY_F42(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    86. 

  86. # define DELAY_F43(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    87. 

  87. # define DELAY_F44(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    88. 

  88. # define DELAY_F45(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    89. 

  89. # define DELAY_F46(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    90. 

  90. # define DELAY_F47(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    91. 

  91. # define DELAY_F48(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    92. 

  92. # define DELAY_F49(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    93. 

  93. # define DELAY_F50(D, N) BOOST_PP_IF(1, BOOST_PP_DEC(N), BOOST_PP_WHILE_ ## D(DELAY_C, DELAY_F ## N, BOOST_PP_DEC(N)))
    94. 

  94. 

  95. DELAY(DELAY_MAX)
    96.