add.hpp 4.2 KB

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  1. # /* Copyright (C) 2001
  2. # * Housemarque Oy
  3. # * http://www.housemarque.com
  4. # *
  5. # * Distributed under the Boost Software License, Version 1.0. (See
  6. # * accompanying file LICENSE_1_0.txt or copy at
  7. # * http://www.boost.org/LICENSE_1_0.txt)
  8. # */
  9. #
  10. # /* Revised by Paul Mensonides (2002) */
  11. # /* Revised by Edward Diener (2020) */
  12. #
  13. # /* See http://www.boost.org for most recent version. */
  14. #
  15. # ifndef BOOST_PREPROCESSOR_ARITHMETIC_ADD_HPP
  16. # define BOOST_PREPROCESSOR_ARITHMETIC_ADD_HPP
  17. #
  18. # include <boost/preprocessor/config/config.hpp>
  19. #
  20. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
  21. #
  22. # include <boost/preprocessor/arithmetic/dec.hpp>
  23. # include <boost/preprocessor/arithmetic/inc.hpp>
  24. # include <boost/preprocessor/control/while.hpp>
  25. # include <boost/preprocessor/tuple/elem.hpp>
  26. #
  27. # /* BOOST_PP_ADD */
  28. #
  29. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  30. # define BOOST_PP_ADD(x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
  31. # else
  32. # define BOOST_PP_ADD(x, y) BOOST_PP_ADD_I(x, y)
  33. # define BOOST_PP_ADD_I(x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
  34. # endif
  35. #
  36. # define BOOST_PP_ADD_P(d, xy) BOOST_PP_TUPLE_ELEM(2, 1, xy)
  37. #
  38. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
  39. # define BOOST_PP_ADD_O(d, xy) BOOST_PP_ADD_O_I xy
  40. # else
  41. # define BOOST_PP_ADD_O(d, xy) BOOST_PP_ADD_O_I(BOOST_PP_TUPLE_ELEM(2, 0, xy), BOOST_PP_TUPLE_ELEM(2, 1, xy))
  42. # endif
  43. #
  44. # define BOOST_PP_ADD_O_I(x, y) (BOOST_PP_INC(x), BOOST_PP_DEC(y))
  45. #
  46. # /* BOOST_PP_ADD_D */
  47. #
  48. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  49. # define BOOST_PP_ADD_D(d, x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
  50. # else
  51. # define BOOST_PP_ADD_D(d, x, y) BOOST_PP_ADD_D_I(d, x, y)
  52. # define BOOST_PP_ADD_D_I(d, x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
  53. # endif
  54. #
  55. # else
  56. #
  57. # include <boost/preprocessor/arithmetic/dec.hpp>
  58. # include <boost/preprocessor/arithmetic/inc.hpp>
  59. # include <boost/preprocessor/control/iif.hpp>
  60. # include <boost/preprocessor/control/while.hpp>
  61. # include <boost/preprocessor/facilities/identity.hpp>
  62. # include <boost/preprocessor/logical/bitand.hpp>
  63. # include <boost/preprocessor/logical/bitor.hpp>
  64. # include <boost/preprocessor/logical/bool.hpp>
  65. # include <boost/preprocessor/logical/compl.hpp>
  66. # include <boost/preprocessor/tuple/elem.hpp>
  67. # include <boost/preprocessor/arithmetic/detail/is_maximum_number.hpp>
  68. # include <boost/preprocessor/arithmetic/detail/is_minimum_number.hpp>
  69. #
  70. # /* BOOST_PP_ADD */
  71. #
  72. # define BOOST_PP_ADD(x, y) BOOST_PP_IIF(BOOST_PP_BITOR(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(y),BOOST_PP_DETAIL_IS_MINIMUM_NUMBER(x)),BOOST_PP_IDENTITY_N(y,2),BOOST_PP_ADD_DO)(x,y)
  73. #
  74. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  75. # define BOOST_PP_ADD_DO(x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
  76. # else
  77. # define BOOST_PP_ADD_DO(x, y) BOOST_PP_ADD_I(x, y)
  78. # define BOOST_PP_ADD_I(x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
  79. # endif
  80. #
  81. # define BOOST_PP_ADD_P(d, xy) BOOST_PP_BITAND(BOOST_PP_BOOL(BOOST_PP_TUPLE_ELEM(2, 1, xy)),BOOST_PP_COMPL(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(BOOST_PP_TUPLE_ELEM(2, 0, xy))))
  82. #
  83. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
  84. # define BOOST_PP_ADD_O(d, xy) BOOST_PP_ADD_O_I xy
  85. # else
  86. # define BOOST_PP_ADD_O(d, xy) BOOST_PP_ADD_O_I(BOOST_PP_TUPLE_ELEM(2, 0, xy), BOOST_PP_TUPLE_ELEM(2, 1, xy))
  87. # endif
  88. #
  89. # define BOOST_PP_ADD_O_I(x, y) (BOOST_PP_INC(x), BOOST_PP_DEC(y))
  90. #
  91. # /* BOOST_PP_ADD_D */
  92. #
  93. # define BOOST_PP_ADD_D(d, x, y) BOOST_PP_IIF(BOOST_PP_BITOR(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(y),BOOST_PP_DETAIL_IS_MINIMUM_NUMBER(x)),BOOST_PP_IDENTITY_N(y,3),BOOST_PP_ADD_DO_D)(d,x,y)
  94. #
  95. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  96. # define BOOST_PP_ADD_DO_D(d, x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
  97. # else
  98. # define BOOST_PP_ADD_DO_D(d, x, y) BOOST_PP_ADD_D_I(d, x, y)
  99. # define BOOST_PP_ADD_D_I(d, x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
  100. # endif
  101. #
  102. # endif
  103. #
  104. # endif