variadic_templates.hpp 4.4 KB

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  1. //
  2. // detail/variadic_templates.hpp
  3. // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  4. //
  5. // Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
  6. //
  7. // Distributed under the Boost Software License, Version 1.0. (See accompanying
  8. // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  9. //
  10. #ifndef BOOST_ASIO_DETAIL_VARIADIC_TEMPLATES_HPP
  11. #define BOOST_ASIO_DETAIL_VARIADIC_TEMPLATES_HPP
  12. #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  13. # pragma once
  14. #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  15. #include <boost/asio/detail/config.hpp>
  16. #if !defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
  17. # define BOOST_ASIO_VARIADIC_TPARAMS(n) BOOST_ASIO_VARIADIC_TPARAMS_##n
  18. # define BOOST_ASIO_VARIADIC_TPARAMS_1 \
  19. typename T1
  20. # define BOOST_ASIO_VARIADIC_TPARAMS_2 \
  21. typename T1, typename T2
  22. # define BOOST_ASIO_VARIADIC_TPARAMS_3 \
  23. typename T1, typename T2, typename T3
  24. # define BOOST_ASIO_VARIADIC_TPARAMS_4 \
  25. typename T1, typename T2, typename T3, typename T4
  26. # define BOOST_ASIO_VARIADIC_TPARAMS_5 \
  27. typename T1, typename T2, typename T3, typename T4, typename T5
  28. # define BOOST_ASIO_VARIADIC_TARGS(n) BOOST_ASIO_VARIADIC_TARGS_##n
  29. # define BOOST_ASIO_VARIADIC_TARGS_1 T1
  30. # define BOOST_ASIO_VARIADIC_TARGS_2 T1, T2
  31. # define BOOST_ASIO_VARIADIC_TARGS_3 T1, T2, T3
  32. # define BOOST_ASIO_VARIADIC_TARGS_4 T1, T2, T3, T4
  33. # define BOOST_ASIO_VARIADIC_TARGS_5 T1, T2, T3, T4, T5
  34. # define BOOST_ASIO_VARIADIC_BYVAL_PARAMS(n) \
  35. BOOST_ASIO_VARIADIC_BYVAL_PARAMS_##n
  36. # define BOOST_ASIO_VARIADIC_BYVAL_PARAMS_1 T1 x1
  37. # define BOOST_ASIO_VARIADIC_BYVAL_PARAMS_2 T1 x1, T2 x2
  38. # define BOOST_ASIO_VARIADIC_BYVAL_PARAMS_3 T1 x1, T2 x2, T3 x3
  39. # define BOOST_ASIO_VARIADIC_BYVAL_PARAMS_4 T1 x1, T2 x2, T3 x3, T4 x4
  40. # define BOOST_ASIO_VARIADIC_BYVAL_PARAMS_5 T1 x1, T2 x2, T3 x3, T4 x4, T5 x5
  41. # define BOOST_ASIO_VARIADIC_BYVAL_ARGS(n) \
  42. BOOST_ASIO_VARIADIC_BYVAL_ARGS_##n
  43. # define BOOST_ASIO_VARIADIC_BYVAL_ARGS_1 x1
  44. # define BOOST_ASIO_VARIADIC_BYVAL_ARGS_2 x1, x2
  45. # define BOOST_ASIO_VARIADIC_BYVAL_ARGS_3 x1, x2, x3
  46. # define BOOST_ASIO_VARIADIC_BYVAL_ARGS_4 x1, x2, x3, x4
  47. # define BOOST_ASIO_VARIADIC_BYVAL_ARGS_5 x1, x2, x3, x4, x5
  48. # define BOOST_ASIO_VARIADIC_MOVE_PARAMS(n) \
  49. BOOST_ASIO_VARIADIC_MOVE_PARAMS_##n
  50. # define BOOST_ASIO_VARIADIC_MOVE_PARAMS_1 \
  51. BOOST_ASIO_MOVE_ARG(T1) x1
  52. # define BOOST_ASIO_VARIADIC_MOVE_PARAMS_2 \
  53. BOOST_ASIO_MOVE_ARG(T1) x1, BOOST_ASIO_MOVE_ARG(T2) x2
  54. # define BOOST_ASIO_VARIADIC_MOVE_PARAMS_3 \
  55. BOOST_ASIO_MOVE_ARG(T1) x1, BOOST_ASIO_MOVE_ARG(T2) x2, \
  56. BOOST_ASIO_MOVE_ARG(T3) x3
  57. # define BOOST_ASIO_VARIADIC_MOVE_PARAMS_4 \
  58. BOOST_ASIO_MOVE_ARG(T1) x1, BOOST_ASIO_MOVE_ARG(T2) x2, \
  59. BOOST_ASIO_MOVE_ARG(T3) x3, BOOST_ASIO_MOVE_ARG(T4) x4
  60. # define BOOST_ASIO_VARIADIC_MOVE_PARAMS_5 \
  61. BOOST_ASIO_MOVE_ARG(T1) x1, BOOST_ASIO_MOVE_ARG(T2) x2, \
  62. BOOST_ASIO_MOVE_ARG(T3) x3, BOOST_ASIO_MOVE_ARG(T4) x4, \
  63. BOOST_ASIO_MOVE_ARG(T5) x5
  64. # define BOOST_ASIO_VARIADIC_MOVE_ARGS(n) \
  65. BOOST_ASIO_VARIADIC_MOVE_ARGS_##n
  66. # define BOOST_ASIO_VARIADIC_MOVE_ARGS_1 \
  67. BOOST_ASIO_MOVE_CAST(T1)(x1)
  68. # define BOOST_ASIO_VARIADIC_MOVE_ARGS_2 \
  69. BOOST_ASIO_MOVE_CAST(T1)(x1), BOOST_ASIO_MOVE_CAST(T2)(x2)
  70. # define BOOST_ASIO_VARIADIC_MOVE_ARGS_3 \
  71. BOOST_ASIO_MOVE_CAST(T1)(x1), BOOST_ASIO_MOVE_CAST(T2)(x2), \
  72. BOOST_ASIO_MOVE_CAST(T3)(x3)
  73. # define BOOST_ASIO_VARIADIC_MOVE_ARGS_4 \
  74. BOOST_ASIO_MOVE_CAST(T1)(x1), BOOST_ASIO_MOVE_CAST(T2)(x2), \
  75. BOOST_ASIO_MOVE_CAST(T3)(x3), BOOST_ASIO_MOVE_CAST(T4)(x4)
  76. # define BOOST_ASIO_VARIADIC_MOVE_ARGS_5 \
  77. BOOST_ASIO_MOVE_CAST(T1)(x1), BOOST_ASIO_MOVE_CAST(T2)(x2), \
  78. BOOST_ASIO_MOVE_CAST(T3)(x3), BOOST_ASIO_MOVE_CAST(T4)(x4), \
  79. BOOST_ASIO_MOVE_CAST(T5)(x5)
  80. # define BOOST_ASIO_VARIADIC_DECAY(n) \
  81. BOOST_ASIO_VARIADIC_DECAY_##n
  82. # define BOOST_ASIO_VARIADIC_DECAY_1 \
  83. typename decay<T1>::type
  84. # define BOOST_ASIO_VARIADIC_DECAY_2 \
  85. typename decay<T1>::type, typename decay<T2>::type
  86. # define BOOST_ASIO_VARIADIC_DECAY_3 \
  87. typename decay<T1>::type, typename decay<T2>::type, \
  88. typename decay<T3>::type
  89. # define BOOST_ASIO_VARIADIC_DECAY_4 \
  90. typename decay<T1>::type, typename decay<T2>::type, \
  91. typename decay<T3>::type, typename decay<T4>::type
  92. # define BOOST_ASIO_VARIADIC_DECAY_5 \
  93. typename decay<T1>::type, typename decay<T2>::type, \
  94. typename decay<T3>::type, typename decay<T4>::type, \
  95. typename decay<T5>::type
  96. # define BOOST_ASIO_VARIADIC_GENERATE(m) m(1) m(2) m(3) m(4) m(5)
  97. #endif // !defined(BOOST_ASIO_HAS_VARIADIC_TEMPLATES)
  98. #endif // BOOST_ASIO_DETAIL_VARIADIC_TEMPLATES_HPP