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/if.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/repetition/enum.hpp>
32 #include <boost/preprocessor/repetition/enum_params.hpp>
33 #include <boost/preprocessor/repetition/repeat.hpp>
34 #include <boost/preprocessor/tuple/elem.hpp>
35 #include <boost/range/iterator_range_core.hpp>
36 #include <boost/type_traits/remove_reference.hpp>
37 
38 namespace boost
39 {
40 
41 namespace range
42 {
43 
44 #define BOOST_RANGE_combined_seq(z, n, data) boost::data(BOOST_PP_CAT(r,n))
45 
46 #ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
47 
48 #include <boost/range/detail/combine_no_rvalue.hpp>
49 
50 #else // by using rvalue references we avoid requiring 2^n overloads.
51 
52 #include <boost/range/detail/combine_rvalue.hpp>
53 
54 #endif
55 
56 #define BOOST_PP_LOCAL_MACRO(n) BOOST_RANGE_combine(~,n,~)
57 #define BOOST_PP_LOCAL_LIMITS (BOOST_RANGE_MIN_COMBINE_ARGS, \
58                                BOOST_RANGE_MAX_COMBINE_ARGS)
59 #include BOOST_PP_LOCAL_ITERATE()
60 
61     } // namespace range
62 
63     using boost::range::combine;
64 
65 } // namespace boost
66 
67 #endif // include guard
68 
69 #undef BOOST_RANGE_combined_seq
70 #undef BOOST_RANGE_combined_exp_pred
71 #undef BOOST_RANGE_combined_exp_op
72 #undef BOOST_RANGE_combined_exp
73 #undef BOOST_RANGE_combined_bitset_pred
74 #undef BOOST_RANGE_combined_bitset_op
75 #undef BOOST_RANGE_combined_bitset
76 #undef BOOST_RANGE_combined_range_iterator
77 #undef BOOST_RANGE_combined_args
78 #undef BOOST_RANGE_combine_impl
79 #undef BOOST_RANGE_combine
80