/Src/Dependencies/Boost/boost/variant/detail/substitute_fwd.hpp

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  1. //-----------------------------------------------------------------------------
    2. 

  2. // boost variant/detail/substitute_fwd.hpp header file
    3. 

  3. // See http://www.boost.org for updates, documentation, and revision history.
    4. 

  4. //-----------------------------------------------------------------------------
    5. 

  5. //
    6. 

  6. // Copyright (c) 2003
    7. 

  7. // Eric Friedman
    8. 

  8. //
    9. 

  9. // Distributed under the Boost Software License, Version 1.0. (See
    10. 

  10. // accompanying file LICENSE_1_0.txt or copy at
    11. 

  11. // http://www.boost.org/LICENSE_1_0.txt)
    12. 

  12. 

  13. #ifndef BOOST_VARIANT_DETAIL_SUBSTITUTE_FWD_HPP
    14. 

  14. #define BOOST_VARIANT_DETAIL_SUBSTITUTE_FWD_HPP
    15. 

  15. 

  16. #include "boost/mpl/aux_/lambda_arity_param.hpp"
    17. 

  17. #include "boost/mpl/aux_/template_arity.hpp"
    18. 

  18. #include "boost/mpl/int_fwd.hpp"
    19. 

  19. 

  20. 

  21. ///////////////////////////////////////////////////////////////////////////////
    22. 

  22. // BOOST_VARIANT_DETAIL_NO_SUBSTITUTE
    23. 

  23. //
    24. 

  24. // Defined if 'substitute' is not implementable on the current compiler.
    25. 

  25. //
    26. 

  26. 

  27. #include "boost/mpl/aux_/config/ctps.hpp"
    28. 

  28. #include "boost/mpl/aux_/config/ttp.hpp"
    29. 

  29. 

  30. #if defined(BOOST_NO_TEMPLATE_TEMPLATE_PARAMETERS) \
    31. 

  31.  || defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
    32. 

  32.  && !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
    33. 

  33. #   define BOOST_VARIANT_DETAIL_NO_SUBSTITUTE
    34. 

  34. #endif
    35. 

  35. 

  36. namespace boost {
    37. 

  37. namespace detail { namespace variant {
    38. 

  38. 

  39. #if !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
    40. 

  40. 

  41. ///////////////////////////////////////////////////////////////////////////////
    42. 

  42. // metafunction substitute
    43. 

  43. //
    44. 

  44. // Substitutes one type for another in the given type expression.
    45. 

  45. //
    46. 

  46. template <
    47. 

  47.       typename T, typename Dest, typename Source
    48. 

  48.       BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(
    49. 

  49.           typename Arity = mpl::int_< mpl::aux::template_arity<T>::value >
    50. 

  50.         )
    51. 

  51.     >
    52. 

  52. struct substitute;
    53. 

  53. 

  54. #endif // !defined(BOOST_VARIANT_DETAIL_NO_SUBSTITUTE)
    55. 

  55. 

  56. }} // namespace detail::variant
    57. 

  57. } // namespace boost
    58. 

  58. 

  59. #endif // BOOST_VARIANT_DETAIL_SUBSTITUTE_FWD_HPP
    60.