remove.hpp 5.8 KB

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  1. # /* **************************************************************************
  2. # * *
  3. # * (C) Copyright Paul Mensonides 2002.
  4. # * Distributed under the Boost Software License, Version 1.0. (See
  5. # * accompanying file LICENSE_1_0.txt or copy at
  6. # * http://www.boost.org/LICENSE_1_0.txt)
  7. # * *
  8. # ************************************************************************** */
  9. #
  10. # /* Revised by Edward Diener (2020) */
  11. #
  12. # /* See http://www.boost.org for most recent version. */
  13. #
  14. # ifndef BOOST_PREPROCESSOR_ARRAY_REMOVE_HPP
  15. # define BOOST_PREPROCESSOR_ARRAY_REMOVE_HPP
  16. #
  17. # include <boost/preprocessor/config/config.hpp>
  18. #
  19. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
  20. #
  21. # include <boost/preprocessor/arithmetic/inc.hpp>
  22. # include <boost/preprocessor/array/elem.hpp>
  23. # include <boost/preprocessor/array/push_back.hpp>
  24. # include <boost/preprocessor/array/size.hpp>
  25. # include <boost/preprocessor/comparison/not_equal.hpp>
  26. # include <boost/preprocessor/control/deduce_d.hpp>
  27. # include <boost/preprocessor/control/iif.hpp>
  28. # include <boost/preprocessor/control/while.hpp>
  29. # include <boost/preprocessor/tuple/eat.hpp>
  30. # include <boost/preprocessor/tuple/elem.hpp>
  31. #
  32. # /* BOOST_PP_ARRAY_REMOVE */
  33. #
  34. # define BOOST_PP_ARRAY_REMOVE(array, i) BOOST_PP_ARRAY_REMOVE_I(BOOST_PP_DEDUCE_D(), array, i)
  35. # define BOOST_PP_ARRAY_REMOVE_I(d, array, i) BOOST_PP_ARRAY_REMOVE_D(d, array, i)
  36. #
  37. # /* BOOST_PP_ARRAY_REMOVE_D */
  38. #
  39. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  40. # define BOOST_PP_ARRAY_REMOVE_D(d, array, i) BOOST_PP_TUPLE_ELEM(4, 2, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REMOVE_P, BOOST_PP_ARRAY_REMOVE_O, (0, i, (0, ()), array)))
  41. # else
  42. # define BOOST_PP_ARRAY_REMOVE_D(d, array, i) BOOST_PP_ARRAY_REMOVE_D_I(d, array, i)
  43. # define BOOST_PP_ARRAY_REMOVE_D_I(d, array, i) BOOST_PP_TUPLE_ELEM(4, 2, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REMOVE_P, BOOST_PP_ARRAY_REMOVE_O, (0, i, (0, ()), array)))
  44. # endif
  45. #
  46. # define BOOST_PP_ARRAY_REMOVE_P(d, st) BOOST_PP_NOT_EQUAL(BOOST_PP_TUPLE_ELEM(4, 0, st), BOOST_PP_ARRAY_SIZE(BOOST_PP_TUPLE_ELEM(4, 3, st)))
  47. #
  48. # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
  49. # define BOOST_PP_ARRAY_REMOVE_O(d, st) BOOST_PP_ARRAY_REMOVE_O_I st
  50. # else
  51. # define BOOST_PP_ARRAY_REMOVE_O(d, st) BOOST_PP_ARRAY_REMOVE_O_I(BOOST_PP_TUPLE_ELEM(4, 0, st), BOOST_PP_TUPLE_ELEM(4, 1, st), BOOST_PP_TUPLE_ELEM(4, 2, st), BOOST_PP_TUPLE_ELEM(4, 3, st))
  52. # endif
  53. #
  54. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_DMC()
  55. # define BOOST_PP_ARRAY_REMOVE_O_I(n, i, res, arr) (BOOST_PP_INC(n), i, BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(n, i), BOOST_PP_ARRAY_PUSH_BACK, res BOOST_PP_TUPLE_EAT_2)(res, BOOST_PP_ARRAY_ELEM(n, arr)), arr)
  56. # else
  57. # define BOOST_PP_ARRAY_REMOVE_O_I(n, i, res, arr) (BOOST_PP_INC(n), i, BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(n, i), BOOST_PP_ARRAY_PUSH_BACK, BOOST_PP_TUPLE_ELEM_2_0)(res, BOOST_PP_ARRAY_ELEM(n, arr)), arr)
  58. # endif
  59. #
  60. # else
  61. #
  62. # include <boost/preprocessor/arithmetic/inc.hpp>
  63. # include <boost/preprocessor/array/elem.hpp>
  64. # include <boost/preprocessor/array/push_back.hpp>
  65. # include <boost/preprocessor/array/size.hpp>
  66. # include <boost/preprocessor/comparison/not_equal.hpp>
  67. # include <boost/preprocessor/control/deduce_d.hpp>
  68. # include <boost/preprocessor/control/iif.hpp>
  69. # include <boost/preprocessor/control/while.hpp>
  70. # if BOOST_PP_LIMIT_TUPLE == 256
  71. # include <boost/preprocessor/logical/not.hpp>
  72. # endif
  73. # include <boost/preprocessor/tuple/eat.hpp>
  74. # include <boost/preprocessor/tuple/elem.hpp>
  75. #
  76. # /* BOOST_PP_ARRAY_REMOVE */
  77. #
  78. # define BOOST_PP_ARRAY_REMOVE(array, i) BOOST_PP_ARRAY_REMOVE_I(BOOST_PP_DEDUCE_D(), array, i)
  79. # define BOOST_PP_ARRAY_REMOVE_I(d, array, i) BOOST_PP_ARRAY_REMOVE_D(d, array, i)
  80. #
  81. # /* BOOST_PP_ARRAY_REMOVE_D */
  82. #
  83. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  84. # if BOOST_PP_LIMIT_TUPLE == 256
  85. # define BOOST_PP_ARRAY_REMOVE_D(d, array, i) BOOST_PP_ARRAY_REMOVE_ZERO_D(d, array, i, BOOST_PP_NOT(i))
  86. # else
  87. # define BOOST_PP_ARRAY_REMOVE_D(d, array, i) BOOST_PP_TUPLE_ELEM(4, 2, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REMOVE_P, BOOST_PP_ARRAY_REMOVE_O, (0, i, (0, ()), array)))
  88. # endif
  89. # else
  90. # define BOOST_PP_ARRAY_REMOVE_D(d, array, i) BOOST_PP_ARRAY_REMOVE_D_I(d, array, i)
  91. # if BOOST_PP_LIMIT_TUPLE == 256
  92. # define BOOST_PP_ARRAY_REMOVE_D_I(d, array, i) BOOST_PP_ARRAY_REMOVE_ZERO_D(d, array, i, BOOST_PP_NOT(i))
  93. # else
  94. # define BOOST_PP_ARRAY_REMOVE_D_I(d, array, i) BOOST_PP_TUPLE_ELEM(4, 2, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REMOVE_P, BOOST_PP_ARRAY_REMOVE_O, (0, i, (0, ()), array)))
  95. # endif
  96. # endif
  97. #
  98. # if BOOST_PP_LIMIT_TUPLE == 256
  99. # define BOOST_PP_ARRAY_REMOVE_ZERO_D(d, array, i, zero) \
  100. BOOST_PP_TUPLE_ELEM(4, 2, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REMOVE_P, BOOST_PP_ARRAY_REMOVE_O, \
  101. (1, i, BOOST_PP_IIF(zero,(0, ()),(1, (BOOST_PP_ARRAY_ELEM(0,array)))), array)))
  102. # endif
  103. #
  104. # define BOOST_PP_ARRAY_REMOVE_P(d, st) BOOST_PP_NOT_EQUAL(BOOST_PP_TUPLE_ELEM(4, 0, st), BOOST_PP_ARRAY_SIZE(BOOST_PP_TUPLE_ELEM(4, 3, st)))
  105. #
  106. # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
  107. # define BOOST_PP_ARRAY_REMOVE_O(d, st) BOOST_PP_ARRAY_REMOVE_O_I st
  108. # else
  109. # define BOOST_PP_ARRAY_REMOVE_O(d, st) BOOST_PP_ARRAY_REMOVE_O_I(BOOST_PP_TUPLE_ELEM(4, 0, st), BOOST_PP_TUPLE_ELEM(4, 1, st), BOOST_PP_TUPLE_ELEM(4, 2, st), BOOST_PP_TUPLE_ELEM(4, 3, st))
  110. # endif
  111. #
  112. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_DMC()
  113. # define BOOST_PP_ARRAY_REMOVE_O_I(n, i, res, arr) (BOOST_PP_INC(n), i, BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(n, i), BOOST_PP_ARRAY_PUSH_BACK, res BOOST_PP_TUPLE_EAT_2)(res, BOOST_PP_ARRAY_ELEM(n, arr)), arr)
  114. # else
  115. # define BOOST_PP_ARRAY_REMOVE_O_I(n, i, res, arr) (BOOST_PP_INC(n), i, BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(n, i), BOOST_PP_ARRAY_PUSH_BACK, BOOST_PP_TUPLE_ELEM_2_0)(res, BOOST_PP_ARRAY_ELEM(n, arr)), arr)
  116. # endif
  117. #
  118. # endif
  119. #
  120. # endif