/extlibs/Boost/include/boost/concept/detail/concept_def.hpp

https://bitbucket.org/hugoruscitti/pilascpp · C++ Header · 51 lines · 38 code · 3 blank · 10 comment · 0 complexity · 9be2657f3d187b21526e9a03a83fc293 MD5 · raw file 

    

  1. // Copyright David Abrahams 2006. Distributed under the Boost
    2. 

  2. // Software License, Version 1.0. (See accompanying
    3. 

  3. // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
    4. 

  4. #ifndef BOOST_CONCEPT_DETAIL_CONCEPT_DEF_DWA200651_HPP
    5. 

  5. # define BOOST_CONCEPT_DETAIL_CONCEPT_DEF_DWA200651_HPP
    6. 

  6. # include <boost/preprocessor/seq/for_each_i.hpp>
    7. 

  7. # include <boost/preprocessor/seq/enum.hpp>
    8. 

  8. # include <boost/preprocessor/comma_if.hpp>
    9. 

  9. # include <boost/preprocessor/cat.hpp>
    10. 

  10. #endif // BOOST_CONCEPT_DETAIL_CONCEPT_DEF_DWA200651_HPP
    11. 

  11. 

  12. // BOOST_concept(SomeName, (p1)(p2)...(pN))
    13. 

  13. //
    14. 

  14. // Expands to "template <class p1, class p2, ...class pN> struct SomeName"
    15. 

  15. //
    16. 

  16. // Also defines an equivalent SomeNameConcept for backward compatibility.
    17. 

  17. // Maybe in the next release we can kill off the "Concept" suffix for good.
    18. 

  18. #if BOOST_WORKAROUND(__GNUC__, <= 3)
    19. 

  19. # define BOOST_concept(name, params)                                            \
    20. 

  20.     template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename,~,params) >       \
    21. 

  21.     struct name; /* forward declaration */                                      \
    22. 

  22.                                                                                 \
    23. 

  23.     template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename,~,params) >       \
    24. 

  24.     struct BOOST_PP_CAT(name,Concept)                                           \
    25. 

  25.       : name< BOOST_PP_SEQ_ENUM(params) >                                       \
    26. 

  26.     {                                                                           \
    27. 

  27.         /* at least 2.96 and 3.4.3 both need this */                            \
    28. 

  28.         BOOST_PP_CAT(name,Concept)();                                           \
    29. 

  29.     };                                                                          \
    30. 

  30.                                                                                 \
    31. 

  31.     template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename,~,params) >       \
    32. 

  32.     struct name                                                                
    33. 

  33. #else
    34. 

  34. # define BOOST_concept(name, params)                                            \
    35. 

  35.     template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename,~,params) >       \
    36. 

  36.     struct name; /* forward declaration */                                      \
    37. 

  37.                                                                                 \
    38. 

  38.     template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename,~,params) >       \
    39. 

  39.     struct BOOST_PP_CAT(name,Concept)                                           \
    40. 

  40.       : name< BOOST_PP_SEQ_ENUM(params) >                                       \
    41. 

  41.     {                                                                           \
    42. 

  42.     };                                                                          \
    43. 

  43.                                                                                 \
    44. 

  44.     template < BOOST_PP_SEQ_FOR_EACH_I(BOOST_CONCEPT_typename,~,params) >       \
    45. 

  45.     struct name                                                                
    46. 

  46. #endif
    47. 

  47.     
    48. 

  48. // Helper for BOOST_concept, above.
    49. 

  49. # define BOOST_CONCEPT_typename(r, ignored, index, t) \
    50. 

  50.     BOOST_PP_COMMA_IF(index) typename t
    51.