for_each_i.hpp 4.9 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. # /* See http://www.boost.org for most recent version. */
  11. #
  12. # ifndef BOOST_PREPROCESSOR_SEQ_FOR_EACH_I_HPP
  13. # define BOOST_PREPROCESSOR_SEQ_FOR_EACH_I_HPP
  14. #
  15. # include <boost/preprocessor/arithmetic/dec.hpp>
  16. # include <boost/preprocessor/arithmetic/inc.hpp>
  17. # include <boost/preprocessor/config/config.hpp>
  18. # include <boost/preprocessor/control/if.hpp>
  19. # include <boost/preprocessor/control/iif.hpp>
  20. # include <boost/preprocessor/repetition/for.hpp>
  21. # include <boost/preprocessor/seq/seq.hpp>
  22. # include <boost/preprocessor/seq/size.hpp>
  23. # include <boost/preprocessor/seq/detail/is_empty.hpp>
  24. # include <boost/preprocessor/tuple/elem.hpp>
  25. # include <boost/preprocessor/tuple/rem.hpp>
  26. #
  27. # /* BOOST_PP_SEQ_FOR_EACH_I */
  28. #
  29. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  30. # define BOOST_PP_SEQ_FOR_EACH_I(macro, data, seq) BOOST_PP_SEQ_FOR_EACH_I_DETAIL_CHECK(macro, data, seq)
  31. # else
  32. # define BOOST_PP_SEQ_FOR_EACH_I(macro, data, seq) BOOST_PP_SEQ_FOR_EACH_I_I(macro, data, seq)
  33. # define BOOST_PP_SEQ_FOR_EACH_I_I(macro, data, seq) BOOST_PP_SEQ_FOR_EACH_I_DETAIL_CHECK(macro, data, seq)
  34. # endif
  35. #
  36. # define BOOST_PP_SEQ_FOR_EACH_I_DETAIL_CHECK_EXEC(macro, data, seq) BOOST_PP_FOR((macro, data, seq, 0, BOOST_PP_SEQ_SIZE(seq)), BOOST_PP_SEQ_FOR_EACH_I_P, BOOST_PP_SEQ_FOR_EACH_I_O, BOOST_PP_SEQ_FOR_EACH_I_M)
  37. # define BOOST_PP_SEQ_FOR_EACH_I_DETAIL_CHECK_EMPTY(macro, data, seq)
  38. #
  39. # define BOOST_PP_SEQ_FOR_EACH_I_DETAIL_CHECK(macro, data, seq) \
  40. BOOST_PP_IIF \
  41. ( \
  42. BOOST_PP_SEQ_DETAIL_IS_NOT_EMPTY(seq), \
  43. BOOST_PP_SEQ_FOR_EACH_I_DETAIL_CHECK_EXEC, \
  44. BOOST_PP_SEQ_FOR_EACH_I_DETAIL_CHECK_EMPTY \
  45. ) \
  46. (macro, data, seq) \
  47. /**/
  48. #
  49. # define BOOST_PP_SEQ_FOR_EACH_I_P(r, x) BOOST_PP_TUPLE_ELEM(5, 4, x)
  50. #
  51. # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
  52. # define BOOST_PP_SEQ_FOR_EACH_I_O(r, x) BOOST_PP_SEQ_FOR_EACH_I_O_I x
  53. # else
  54. # define BOOST_PP_SEQ_FOR_EACH_I_O(r, x) BOOST_PP_SEQ_FOR_EACH_I_O_I(BOOST_PP_TUPLE_ELEM(5, 0, x), BOOST_PP_TUPLE_ELEM(5, 1, x), BOOST_PP_TUPLE_ELEM(5, 2, x), BOOST_PP_TUPLE_ELEM(5, 3, x), BOOST_PP_TUPLE_ELEM(5, 4, x))
  55. # endif
  56. #
  57. # define BOOST_PP_SEQ_FOR_EACH_I_O_I(macro, data, seq, i, sz) \
  58. BOOST_PP_SEQ_FOR_EACH_I_O_I_DEC(macro, data, seq, i, BOOST_PP_DEC(sz)) \
  59. /**/
  60. # define BOOST_PP_SEQ_FOR_EACH_I_O_I_DEC(macro, data, seq, i, sz) \
  61. ( \
  62. macro, \
  63. data, \
  64. BOOST_PP_IF \
  65. ( \
  66. sz, \
  67. BOOST_PP_SEQ_FOR_EACH_I_O_I_TAIL, \
  68. BOOST_PP_SEQ_FOR_EACH_I_O_I_NIL \
  69. ) \
  70. (seq), \
  71. BOOST_PP_INC(i), \
  72. sz \
  73. ) \
  74. /**/
  75. # define BOOST_PP_SEQ_FOR_EACH_I_O_I_TAIL(seq) BOOST_PP_SEQ_TAIL(seq)
  76. # define BOOST_PP_SEQ_FOR_EACH_I_O_I_NIL(seq) BOOST_PP_NIL
  77. #
  78. # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
  79. # define BOOST_PP_SEQ_FOR_EACH_I_M(r, x) BOOST_PP_SEQ_FOR_EACH_I_M_IM(r, BOOST_PP_TUPLE_REM_5 x)
  80. # define BOOST_PP_SEQ_FOR_EACH_I_M_IM(r, im) BOOST_PP_SEQ_FOR_EACH_I_M_I(r, im)
  81. # else
  82. # define BOOST_PP_SEQ_FOR_EACH_I_M(r, x) BOOST_PP_SEQ_FOR_EACH_I_M_I(r, BOOST_PP_TUPLE_ELEM(5, 0, x), BOOST_PP_TUPLE_ELEM(5, 1, x), BOOST_PP_TUPLE_ELEM(5, 2, x), BOOST_PP_TUPLE_ELEM(5, 3, x), BOOST_PP_TUPLE_ELEM(5, 4, x))
  83. # endif
  84. #
  85. # define BOOST_PP_SEQ_FOR_EACH_I_M_I(r, macro, data, seq, i, sz) macro(r, data, i, BOOST_PP_SEQ_HEAD(seq))
  86. #
  87. # /* BOOST_PP_SEQ_FOR_EACH_I_R */
  88. #
  89. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  90. # define BOOST_PP_SEQ_FOR_EACH_I_R(r, macro, data, seq) BOOST_PP_SEQ_FOR_EACH_I_R_DETAIL_CHECK(r, macro, data, seq)
  91. # else
  92. # define BOOST_PP_SEQ_FOR_EACH_I_R(r, macro, data, seq) BOOST_PP_SEQ_FOR_EACH_I_R_I(r, macro, data, seq)
  93. # define BOOST_PP_SEQ_FOR_EACH_I_R_I(r, macro, data, seq) BOOST_PP_SEQ_FOR_EACH_I_R_DETAIL_CHECK(r, macro, data, seq)
  94. # endif
  95. #
  96. # define BOOST_PP_SEQ_FOR_EACH_I_R_DETAIL_CHECK_EXEC(r, macro, data, seq) BOOST_PP_FOR_ ## r((macro, data, seq, 0, BOOST_PP_SEQ_SIZE(seq)), BOOST_PP_SEQ_FOR_EACH_I_P, BOOST_PP_SEQ_FOR_EACH_I_O, BOOST_PP_SEQ_FOR_EACH_I_M)
  97. # define BOOST_PP_SEQ_FOR_EACH_I_R_DETAIL_CHECK_EMPTY(r, macro, data, seq)
  98. #
  99. # define BOOST_PP_SEQ_FOR_EACH_I_R_DETAIL_CHECK(r, macro, data, seq) \
  100. BOOST_PP_IIF \
  101. ( \
  102. BOOST_PP_SEQ_DETAIL_IS_NOT_EMPTY(seq), \
  103. BOOST_PP_SEQ_FOR_EACH_I_R_DETAIL_CHECK_EXEC, \
  104. BOOST_PP_SEQ_FOR_EACH_I_R_DETAIL_CHECK_EMPTY \
  105. ) \
  106. (r, macro, data, seq) \
  107. /**/
  108. #
  109. # endif