/Src/Dependencies/Boost/boost/mpl/copy_if.hpp

http://hadesmem.googlecode.com/ · C++ Header · 96 lines · 72 code · 13 blank · 11 comment · 0 complexity · 8b6e75765ec42c751e4e782e792a60fb MD5 · raw file 

    

  1. #ifndef BOOST_MPL_COPY_IF_HPP_INCLUDED
    2. 

  2. #define BOOST_MPL_COPY_IF_HPP_INCLUDED
    3. 

  3. 

  4. // Copyright Aleksey Gurtovoy 2000-2004
    5. 

  5. // Copyright David Abrahams 2003-2004
    6. 

  6. //
    7. 

  7. // Distributed under the Boost Software License, Version 1.0. 
    8. 

  8. // (See accompanying file LICENSE_1_0.txt or copy at 
    9. 

  9. // http://www.boost.org/LICENSE_1_0.txt)
    10. 

  10. //
    11. 

  11. // See http://www.boost.org/libs/mpl for documentation.
    12. 

  12. 

  13. // $Id: copy_if.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
    14. 

  14. // $Date: 2008-10-11 17:19:02 +1100 (Sat, 11 Oct 2008) $
    15. 

  15. // $Revision: 49267 $
    16. 

  16. 

  17. #include <boost/mpl/fold.hpp>
    18. 

  18. #include <boost/mpl/reverse_fold.hpp>
    19. 

  19. #include <boost/mpl/apply.hpp>
    20. 

  20. #include <boost/mpl/eval_if.hpp>
    21. 

  21. #include <boost/mpl/identity.hpp>
    22. 

  22. #include <boost/mpl/protect.hpp>
    23. 

  23. #include <boost/mpl/aux_/inserter_algorithm.hpp>
    24. 

  24. #include <boost/mpl/aux_/config/forwarding.hpp>
    25. 

  25. 

  26. namespace boost { namespace mpl {
    27. 

  27. 

  28. namespace aux {
    29. 

  29. 

  30. template<
    31. 

  31.       typename Operation
    32. 

  32.     , typename Predicate
    33. 

  33.     >
    34. 

  34. struct copy_if_op
    35. 

  35. {
    36. 

  36.     template< typename Sequence, typename T > struct apply
    37. 

  37. #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
    38. 

  38.         : eval_if<
    39. 

  39.               typename apply1<Predicate,T>::type
    40. 

  40.             , apply2<Operation,Sequence,T>
    41. 

  41.             , identity<Sequence>
    42. 

  42.             >
    43. 

  43.     {
    44. 

  44. #else
    45. 

  45.     {
    46. 

  46.         typedef typename eval_if<
    47. 

  47.               typename apply1<Predicate,T>::type
    48. 

  48.             , apply2<Operation,Sequence,T>
    49. 

  49.             , identity<Sequence>
    50. 

  50.             >::type type;
    51. 

  51. #endif
    52. 

  52.     };
    53. 

  53. };
    54. 

  54. 

  55. template<
    56. 

  56.       typename Sequence
    57. 

  57.     , typename Predicate
    58. 

  58.     , typename Inserter
    59. 

  59.     >
    60. 

  60. struct copy_if_impl
    61. 

  61.     : fold<
    62. 

  62.           Sequence
    63. 

  63.         , typename Inserter::state
    64. 

  64.         , protect< aux::copy_if_op<
    65. 

  65.               typename Inserter::operation
    66. 

  66.             , Predicate
    67. 

  67.             > >
    68. 

  68.         >
    69. 

  69. {
    70. 

  70. };
    71. 

  71. 

  72. template<
    73. 

  73.       typename Sequence
    74. 

  74.     , typename Predicate
    75. 

  75.     , typename Inserter
    76. 

  76.     >
    77. 

  77. struct reverse_copy_if_impl
    78. 

  78.     : reverse_fold<
    79. 

  79.           Sequence
    80. 

  80.         , typename Inserter::state
    81. 

  81.         , protect< aux::copy_if_op<
    82. 

  82.               typename Inserter::operation
    83. 

  83.             , Predicate
    84. 

  84.             > >
    85. 

  85.         >
    86. 

  86. {
    87. 

  87. };
    88. 

  88. 

  89. } // namespace aux
    90. 

  90. 

  91. BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(3, copy_if)
    92. 

  92. 

  93. }}
    94. 

  94. 

  95. #endif // BOOST_MPL_COPY_IF_HPP_INCLUDED
    96.