1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
// Boost.Range library
//
// Copyright Neil Groves 2014. Use, modification and
// distribution is subject to the Boost Software License, Version
// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see http://www.boost.org/libs/range/
//
#define BOOST_RANGE_combined_exp_pred(d, data) BOOST_PP_TUPLE_ELEM(3, 0, data)
#define BOOST_RANGE_combined_exp_op(d, data) \
( \
BOOST_PP_DEC( \
BOOST_PP_TUPLE_ELEM(3, 0, data) \
), \
BOOST_PP_TUPLE_ELEM(3, 1, data), \
BOOST_PP_MUL_D( \
d, \
BOOST_PP_TUPLE_ELEM(3, 2, data), \
BOOST_PP_TUPLE_ELEM(3, 1, data) \
) \
)
#define BOOST_RANGE_combined_exp(x, n) \
BOOST_PP_TUPLE_ELEM(3, 2, \
BOOST_PP_WHILE(BOOST_RANGE_combined_exp_pred, \
BOOST_RANGE_combined_exp_op, (n, x, 1)))
#define BOOST_RANGE_combined_bitset_pred(n, state) \
BOOST_PP_TUPLE_ELEM(2,1,state)
#define BOOST_RANGE_combined_bitset_op(d, state) \
(BOOST_PP_DIV_D(d, BOOST_PP_TUPLE_ELEM(2,0,state), 2), \
BOOST_PP_DEC(BOOST_PP_TUPLE_ELEM(2,1,state)))
#define BOOST_RANGE_combined_bitset(i, n) \
BOOST_PP_MOD(BOOST_PP_TUPLE_ELEM(2, 0, \
BOOST_PP_WHILE(BOOST_RANGE_combined_bitset_pred, \
BOOST_RANGE_combined_bitset_op, (i,n))), 2)
#define BOOST_RANGE_combined_range_iterator(z, n, i) \
typename range_iterator< \
BOOST_PP_CAT(R,n) \
BOOST_PP_IF( \
BOOST_RANGE_combined_bitset(i,n), \
BOOST_PP_IDENTITY(const), \
BOOST_PP_EMPTY)() \
>::type
#define BOOST_RANGE_combined_args(z, n, i) \
BOOST_PP_CAT(R, n) \
BOOST_PP_IF(BOOST_RANGE_combined_bitset(i,n), const&, &) \
BOOST_PP_CAT(r, n)
#define BOOST_RANGE_combine_impl(z, i, n)\
template<BOOST_PP_ENUM_PARAMS(n, typename R)> \
inline range::combined_range< \
boost::tuple<BOOST_PP_ENUM(n, BOOST_RANGE_combined_range_iterator, i)> \
> \
combine(BOOST_PP_ENUM(n, BOOST_RANGE_combined_args, i)) \
{ \
typedef tuple< \
BOOST_PP_ENUM(n, BOOST_RANGE_combined_range_iterator, i) \
> rng_tuple_t; \
return range::combined_range<rng_tuple_t>( \
rng_tuple_t(BOOST_PP_ENUM(n, BOOST_RANGE_combined_seq, begin)), \
rng_tuple_t(BOOST_PP_ENUM(n, BOOST_RANGE_combined_seq, end))); \
}
#define BOOST_RANGE_combine(z, n, data) \
BOOST_PP_REPEAT(BOOST_RANGE_combined_exp(2,n), BOOST_RANGE_combine_impl, n)
|
