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1 | // Boost.Range library |
2 | // | |
3 | // Copyright Neil Groves 2010. 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 | ||
11 | #ifndef BOOST_RANGE_DEFINE_ADAPTOR_HPP_INCLUDED | |
12 | #define BOOST_RANGE_DEFINE_ADAPTOR_HPP_INCLUDED | |
13 | ||
14 | #include <boost/tuple/tuple.hpp> | |
15 | ||
16 | #define BOOST_DEFINE_RANGE_ADAPTOR( adaptor_name, range_adaptor ) \ | |
17 | struct adaptor_name##_forwarder {}; \ | |
18 | \ | |
19 | template<typename Range> range_adaptor <Range> \ | |
20 | operator|(Range& rng, adaptor_name##_forwarder) \ | |
21 | { \ | |
22 | return range_adaptor <Range>( rng ); \ | |
23 | } \ | |
24 | \ | |
25 | template<typename Range> range_adaptor <const Range> \ | |
26 | operator|(const Range& rng, adaptor_name##_forwarder) \ | |
27 | { \ | |
28 | return range_adaptor <const Range>( rng ); \ | |
29 | } \ | |
30 | \ | |
31 | static adaptor_name##_forwarder adaptor_name = adaptor_name##_forwarder(); \ | |
32 | \ | |
33 | template<typename Range> \ | |
34 | range_adaptor <Range> \ | |
35 | make_##adaptor_name(Range& rng) \ | |
36 | { \ | |
37 | return range_adaptor <Range>(rng); \ | |
38 | } \ | |
39 | \ | |
40 | template<typename Range> \ | |
41 | range_adaptor <const Range> \ | |
42 | make_##adaptor_name(const Range& rng) \ | |
43 | { \ | |
44 | return range_adaptor <const Range>(rng); \ | |
45 | } | |
46 | ||
47 | #define BOOST_DEFINE_RANGE_ADAPTOR_1( adaptor_name, range_adaptor, arg1_type ) \ | |
48 | struct adaptor_name \ | |
49 | { \ | |
50 | explicit adaptor_name (arg1_type arg1_) \ | |
51 | : arg1(arg1_) {} \ | |
52 | arg1_type arg1; \ | |
53 | }; \ | |
54 | \ | |
55 | template<typename Range> range_adaptor <Range> \ | |
56 | operator|(Range& rng, adaptor_name args) \ | |
57 | { \ | |
58 | return range_adaptor <Range>(rng, args.arg1); \ | |
59 | } \ | |
60 | \ | |
61 | template<typename Range> range_adaptor <const Range> \ | |
62 | operator|(const Range& rng, adaptor_name args) \ | |
63 | { \ | |
64 | return range_adaptor <const Range>(rng, args.arg1); \ | |
65 | } \ | |
66 | \ | |
67 | template<typename Range> \ | |
68 | range_adaptor <Range> \ | |
69 | make_##adaptor_name(Range& rng, arg1_type arg1) \ | |
70 | { \ | |
71 | return range_adaptor <Range>(rng, arg1); \ | |
72 | } \ | |
73 | \ | |
74 | template<typename Range> \ | |
75 | range_adaptor <const Range> \ | |
76 | make_##adaptor_name(const Range& rng, arg1_type arg1) \ | |
77 | { \ | |
78 | return range_adaptor <const Range>(rng, arg1); \ | |
79 | } | |
80 | ||
81 | #define BOOST_RANGE_ADAPTOR_2( adaptor_name, range_adaptor, arg1_type, arg2_type ) \ | |
82 | struct adaptor_name \ | |
83 | { \ | |
84 | explicit adaptor_name (arg1_type arg1_, arg2_type arg2_) \ | |
85 | : arg1(arg1_), arg2(arg2_) {} \ | |
86 | arg1_type arg1; \ | |
87 | arg2_type arg2; \ | |
88 | }; \ | |
89 | \ | |
90 | template<typename Range> range_adaptor <Range> \ | |
91 | operator|(Range& rng, adaptor_name args) \ | |
92 | { \ | |
93 | return range_adaptor <Range>(rng, args.arg1, args.arg2); \ | |
94 | } \ | |
95 | template<typename Range> \ | |
96 | range_adaptor <Range> \ | |
97 | make_##adaptor_name(Range& rng, arg1_type arg1, arg2_type arg2) \ | |
98 | { \ | |
99 | return range_adaptor <Range>(rng, arg1, arg2); \ | |
100 | } \ | |
101 | template<typename Range> \ | |
102 | range_adaptor <const Range> \ | |
103 | make_##adaptor_name(const Range& rng, arg1_type arg1, arg2_type arg2) \ | |
104 | { \ | |
105 | return range_adaptor <const Range>(rng, arg1, arg2); \ | |
106 | } | |
107 | ||
108 | ||
109 | #endif // include guard |