set_view_iterator.hpp 5.1 KB

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  1. // Boost.Bimap
  2. //
  3. // Copyright (c) 2006-2007 Matias Capeletto
  4. //
  5. // Distributed under the Boost Software License, Version 1.0.
  6. // (See accompanying file LICENSE_1_0.txt or copy at
  7. // http://www.boost.org/LICENSE_1_0.txt)
  8. /// \file detail/set_view_iterator.hpp
  9. /// \brief Iterator adaptors from multi-index to bimap.
  10. #ifndef BOOST_BIMAP_DETAIL_SET_VIEW_ITERATOR_HPP
  11. #define BOOST_BIMAP_DETAIL_SET_VIEW_ITERATOR_HPP
  12. #if defined(_MSC_VER)
  13. #pragma once
  14. #endif
  15. #include <boost/config.hpp>
  16. // Boost
  17. #ifndef BOOST_BIMAP_DISABLE_SERIALIZATION
  18. #include <boost/core/serialization.hpp>
  19. #endif // BOOST_BIMAP_DISABLE_SERIALIZATION
  20. #include <boost/iterator/iterator_adaptor.hpp>
  21. #include <boost/bimap/relation/support/get_pair_functor.hpp>
  22. namespace boost {
  23. namespace bimaps {
  24. namespace detail {
  25. /** \brief Set View Iterator adaptor from multi index to bimap.
  26. This is class is based on transform iterator from Boost.Iterator that is
  27. modified to allow serialization. It has been specialized for this
  28. library, and EBO optimization was applied to the functor.
  29. **/
  30. #ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES
  31. template< class CoreIterator > struct set_view_iterator;
  32. template< class CoreIterator >
  33. struct set_view_iterator_base
  34. {
  35. typedef iterator_adaptor
  36. <
  37. set_view_iterator< CoreIterator >,
  38. CoreIterator,
  39. BOOST_DEDUCED_TYPENAME CoreIterator::value_type::above_view
  40. > type;
  41. };
  42. #endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES
  43. template< class CoreIterator >
  44. struct set_view_iterator : public set_view_iterator_base<CoreIterator>::type
  45. {
  46. typedef BOOST_DEDUCED_TYPENAME set_view_iterator_base<CoreIterator>::type base_;
  47. public:
  48. set_view_iterator() {}
  49. set_view_iterator(CoreIterator const& iter)
  50. : base_(iter) {}
  51. set_view_iterator(set_view_iterator const & iter)
  52. : base_(iter.base()) {}
  53. typename base_::reference dereference() const
  54. {
  55. return const_cast<
  56. BOOST_DEDUCED_TYPENAME base_::base_type::value_type*>(
  57. &(*this->base())
  58. )->get_view();
  59. }
  60. private:
  61. friend class boost::iterators::iterator_core_access;
  62. #ifndef BOOST_BIMAP_DISABLE_SERIALIZATION
  63. // Serialization support
  64. template< class Archive >
  65. void serialize(Archive & ar, const unsigned int v)
  66. {
  67. boost::core::split_member(ar, *this, v);
  68. }
  69. friend class ::boost::serialization::access;
  70. template< class Archive >
  71. void save(Archive & ar, const unsigned int) const
  72. {
  73. ar << ::boost::serialization::make_nvp("mi_iterator",this->base());
  74. }
  75. template< class Archive >
  76. void load(Archive & ar, const unsigned int)
  77. {
  78. CoreIterator iter;
  79. ar >> ::boost::serialization::make_nvp("mi_iterator",iter);
  80. this->base_reference() = iter;
  81. }
  82. #endif // BOOST_BIMAP_DISABLE_SERIALIZATION
  83. };
  84. #ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES
  85. template< class CoreIterator > struct const_set_view_iterator;
  86. template< class CoreIterator >
  87. struct const_set_view_iterator_base
  88. {
  89. typedef iterator_adaptor
  90. <
  91. const_set_view_iterator< CoreIterator >,
  92. CoreIterator,
  93. const BOOST_DEDUCED_TYPENAME CoreIterator::value_type::above_view
  94. > type;
  95. };
  96. #endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES
  97. /** \brief Const Set View Iterator adaptor from multi index to bimap.
  98. See also set_view_iterator.
  99. **/
  100. template< class CoreIterator >
  101. struct const_set_view_iterator : public const_set_view_iterator_base<CoreIterator>::type
  102. {
  103. typedef BOOST_DEDUCED_TYPENAME const_set_view_iterator_base<CoreIterator>::type base_;
  104. public:
  105. const_set_view_iterator() {}
  106. const_set_view_iterator(CoreIterator const& iter)
  107. : base_(iter) {}
  108. const_set_view_iterator(const_set_view_iterator const & iter)
  109. : base_(iter.base()) {}
  110. const_set_view_iterator(set_view_iterator<CoreIterator> i)
  111. : base_(i.base()) {}
  112. BOOST_DEDUCED_TYPENAME base_::reference dereference() const
  113. {
  114. return this->base()->get_view();
  115. }
  116. private:
  117. friend class boost::iterators::iterator_core_access;
  118. #ifndef BOOST_BIMAP_DISABLE_SERIALIZATION
  119. // Serialization support
  120. template< class Archive >
  121. void serialize(Archive & ar, const unsigned int v)
  122. {
  123. boost::core::split_member(ar, *this, v);
  124. }
  125. friend class ::boost::serialization::access;
  126. template< class Archive >
  127. void save(Archive & ar, const unsigned int) const
  128. {
  129. ar << ::boost::serialization::make_nvp("mi_iterator",this->base());
  130. }
  131. template< class Archive >
  132. void load(Archive & ar, const unsigned int)
  133. {
  134. CoreIterator iter;
  135. ar >> ::boost::serialization::make_nvp("mi_iterator",iter);
  136. this->base_reference() = iter;
  137. }
  138. #endif // BOOST_BIMAP_DISABLE_SERIALIZATION
  139. };
  140. } // namespace detail
  141. } // namespace bimaps
  142. } // namespace boost
  143. #endif // BOOST_BIMAP_DETAIL_MAP_VIEW_ITERATOR_HPP