ceph/src/boost/libs/range/include/boost/range/detail/combine_cxx03.hpp

   1 // Boost.Range library
   2 //
   3 //  Copyright Neil Groves 2014. Use, modification and
   4 //  distribution is subject to the Boost Software License, Version
   5 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
   6 //  http://www.boost.org/LICENSE_1_0.txt)
   7 //
   8 // For more information, see http://www.boost.org/libs/range/
   9 //
  10 #ifndef BOOST_RANGE_DETAIL_COMBINE_CXX03_HPP
  11 #define BOOST_RANGE_DETAIL_COMBINE_CXX03_HPP
  12
  13 #ifndef BOOST_RANGE_MIN_COMBINE_ARGS
  14 #define BOOST_RANGE_MIN_COMBINE_ARGS 2
  15 #endif
  16
  17 #ifndef BOOST_RANGE_MAX_COMBINE_ARGS
  18 #define BOOST_RANGE_MAX_COMBINE_ARGS 5
  19 #endif
  20
  21 #include <boost/config.hpp>
  22 #include <boost/iterator/zip_iterator.hpp>
  23 #include <boost/preprocessor/arithmetic/dec.hpp>
  24 #include <boost/preprocessor/arithmetic/div.hpp>
  25 #include <boost/preprocessor/arithmetic/mul.hpp>
  26 #include <boost/preprocessor/control.hpp>
  27 #include <boost/preprocessor/control/while.hpp>
  28 #include <boost/preprocessor/facilities/empty.hpp>
  29 #include <boost/preprocessor/facilities/identity.hpp>
  30 #include <boost/preprocessor/iteration/local.hpp>
  31 #include <boost/preprocessor/punctuation/comma.hpp>
  32 #include <boost/preprocessor/repetition.hpp>
  33 #include <boost/preprocessor/tuple/elem.hpp>
  34 #include <boost/range/iterator_range_core.hpp>
  35 #include <boost/type_traits/remove_reference.hpp>
  36 #include <boost/mpl/transform.hpp>
  37 #include <boost/utility/result_of.hpp>
  38
  39 #include <vector>
  40 #include <list>
  41
  42 namespace boost
  43 {
  44     namespace range_detail
  45     {
  46
  47 template<typename F, typename T, int SIZE>
  48 struct combined_result_impl;
  49
  50 template<typename F, typename T>
  51 struct combined_result
  52     : combined_result_impl<F, T, tuples::length<T>::value>
  53 {
  54 };
  55
  56 #define BOOST_RANGE_combined_element(z, n, data) \
  57     typename tuples::element<n, T>::type
  58
  59 #define BOOST_RANGE_combined_result(z, n, data) \
  60     template<typename F, typename T> \
  61     struct combined_result_impl <F,T,n> \
  62         : result_of<F(BOOST_PP_ENUM(n, BOOST_RANGE_combined_element, ~))> \
  63     { \
  64     };
  65
  66 #define BOOST_PP_LOCAL_MACRO(n) BOOST_RANGE_combined_result(~,n,~)
  67
  68 #define BOOST_PP_LOCAL_LIMITS (BOOST_RANGE_MIN_COMBINE_ARGS, \
  69                                BOOST_RANGE_MAX_COMBINE_ARGS)
  70 #include BOOST_PP_LOCAL_ITERATE()
  71
  72 #define BOOST_RANGE_combined_get(z, n, data) get<n>(tuple)
  73
  74 #define BOOST_RANGE_combined_unpack(z, n, data) \
  75     template<typename F, typename T> inline \
  76     typename combined_result<F,T>::type \
  77     unpack_(mpl::int_<n>, F f, const T& tuple) \
  78     { \
  79         return f(BOOST_PP_ENUM(n, BOOST_RANGE_combined_get, ~)); \
  80     }
  81
  82 #define BOOST_PP_LOCAL_MACRO(n) BOOST_RANGE_combined_unpack(~,n,~)
  83 #define BOOST_PP_LOCAL_LIMITS (BOOST_RANGE_MIN_COMBINE_ARGS, \
  84                                BOOST_RANGE_MAX_COMBINE_ARGS)
  85 #include BOOST_PP_LOCAL_ITERATE()
  86
  87 } // namespace range_detail
  88
  89 namespace range
  90 {
  91
  92 #define BOOST_RANGE_combined_seq(z, n, data) boost::data(BOOST_PP_CAT(r,n))
  93
  94 #ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
  95
  96 #include <boost/range/detail/combine_no_rvalue.hpp>
  97
  98 #else // by using rvalue references we avoid requiring 2^n overloads.
  99
 100 #include <boost/range/detail/combine_rvalue.hpp>
 101
 102 #endif
 103
 104 #define BOOST_PP_LOCAL_MACRO(n) BOOST_RANGE_combine(~,n,~)
 105 #define BOOST_PP_LOCAL_LIMITS (BOOST_RANGE_MIN_COMBINE_ARGS, \
 106                                BOOST_RANGE_MAX_COMBINE_ARGS)
 107 #include BOOST_PP_LOCAL_ITERATE()
 108
 109     } // namespace range
 110
 111     using boost::range::combine;
 112
 113 } // namespace boost
 114
 115 #endif // include guard
 116
 117 #undef BOOST_RANGE_combined_element
 118 #undef BOOST_RANGE_combined_result
 119 #undef BOOST_RANGE_combined_get
 120 #undef BOOST_RANGE_combined_unpack
 121 #undef BOOST_RANGE_combined_seq
 122 #undef BOOST_RANGE_combined_exp_pred
 123 #undef BOOST_RANGE_combined_exp_op
 124 #undef BOOST_RANGE_combined_exp
 125 #undef BOOST_RANGE_combined_bitset_pred
 126 #undef BOOST_RANGE_combined_bitset_op
 127 #undef BOOST_RANGE_combined_bitset
 128 #undef BOOST_RANGE_combined_range_iterator
 129 #undef BOOST_RANGE_combined_args
 130 #undef BOOST_RANGE_combine_impl
 131 #undef BOOST_RANGE_combine