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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*=============================================================================
Copyright (C) 1999-2003 Jaakko Jarvi
Copyright (c) 2001-2011 Joel de Guzman
Distributed under 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)
==============================================================================*/
#include <boost/detail/lightweight_test.hpp>
#include <boost/fusion/sequence/intrinsic.hpp>
#include <boost/fusion/support/is_sequence.hpp>
#include <boost/fusion/mpl.hpp>
#include <boost/mpl/find.hpp>
#include <boost/mpl/equal.hpp>
#include <boost/mpl/int.hpp>
#include <boost/mpl/integral_c.hpp>
#include <boost/type_traits/is_same.hpp>
#include <string>
#if !defined(FUSION_AT)
#define FUSION_AT at_c
#endif
#if !defined(FUSION_SIZE)
#define FUSION_SIZE boost::fusion::result_of::size
#endif
template <typename S1, typename S2>
struct is_same
{
};
struct test_intrinsics1
{
// test at, begin, end, next, prior, advance, size, deref, etc.
typedef boost::fusion::FUSION_SEQUENCE<int, float, bool, char> sequence;
typedef boost::mpl::begin<sequence>::type first;
typedef boost::mpl::next<first>::type second;
typedef boost::mpl::next<second>::type third;
typedef boost::mpl::next<third>::type fourth;
typedef boost::mpl::end<sequence>::type last;
BOOST_STATIC_ASSERT((boost::is_same<
boost::mpl::deref<first>::type, int>::value));
BOOST_STATIC_ASSERT((boost::is_same<
boost::mpl::deref<second>::type, float>::value));
BOOST_STATIC_ASSERT((boost::is_same<
boost::mpl::deref<third>::type, bool>::value));
BOOST_STATIC_ASSERT((boost::is_same<
boost::mpl::deref<fourth>::type, char>::value));
BOOST_STATIC_ASSERT((boost::is_same<
boost::mpl::at_c<sequence, 2>::type, bool>::value));
BOOST_STATIC_ASSERT((boost::is_same<
boost::mpl::front<sequence>::type, int>::value));
BOOST_STATIC_ASSERT((boost::is_same<
boost::mpl::deref<
boost::mpl::advance_c<second, 2>::type>::type, char>::value));
BOOST_STATIC_ASSERT((boost::mpl::size<sequence>::value == 4));
BOOST_STATIC_ASSERT(!(boost::mpl::empty<sequence>::value));
BOOST_STATIC_ASSERT((boost::mpl::distance<second, fourth>::value == 2));
#if !defined(FUSION_FORWARD_ONLY) // list has no back/prev
typedef boost::mpl::prior<last>::type fourth_;
typedef boost::mpl::prior<fourth_>::type third_;
typedef boost::mpl::prior<third_>::type second_;
typedef boost::mpl::prior<second_>::type first_;
BOOST_STATIC_ASSERT((boost::is_same<
boost::mpl::deref<first_>::type, int>::value));
BOOST_STATIC_ASSERT((boost::is_same<
boost::mpl::deref<second_>::type, float>::value));
BOOST_STATIC_ASSERT((boost::is_same<
boost::mpl::deref<third_>::type, bool>::value));
BOOST_STATIC_ASSERT((boost::is_same<
boost::mpl::deref<fourth_>::type, char>::value));
BOOST_STATIC_ASSERT((boost::is_same<
boost::mpl::back<sequence>::type, char>::value));
#endif
};
struct test_intrinsics2
{
typedef boost::fusion::FUSION_SEQUENCE<> seq0;
#if !defined(BOOST_FUSION_SEQUENCE_CONVERSION_IS_NOT_SEQUENCE__TYPE_PRESERVING)
#if !defined(FUSION_FORWARD_ONLY) // list has no back/prev
typedef boost::fusion::FUSION_SEQUENCE<int> target1;
typedef boost::mpl::push_back<seq0, int>::type seq1;
BOOST_STATIC_ASSERT((boost::mpl::equal<seq1, target1>::value));
typedef boost::fusion::FUSION_SEQUENCE<int, double> target2;
typedef boost::mpl::push_back<seq1, double>::type seq2;
BOOST_STATIC_ASSERT((boost::mpl::equal<seq2, target2>::value));
#endif
typedef boost::fusion::FUSION_SEQUENCE<int> target3;
typedef boost::mpl::push_front<seq0, int>::type seq3;
BOOST_STATIC_ASSERT((boost::mpl::equal<seq3, target3>::value));
typedef boost::fusion::FUSION_SEQUENCE<double, int> target4;
typedef boost::mpl::push_front<seq3, double>::type seq4;
BOOST_STATIC_ASSERT((boost::mpl::equal<seq4, target4>::value));
#endif
};
void
test()
{
using namespace boost::fusion;
{ // testing const sequences
const FUSION_SEQUENCE<int, float> t1(5, 3.3f);
BOOST_TEST(FUSION_AT<0>(t1) == 5);
BOOST_TEST(FUSION_AT<1>(t1) == 3.3f);
}
{ // testing at<N> works with MPL integral constants
const FUSION_SEQUENCE<int, char> t1(101, 'z');
BOOST_TEST(boost::fusion::at<boost::mpl::int_<0> >(t1) == 101);
BOOST_TEST(boost::fusion::at<boost::mpl::int_<1> >(t1) == 'z');
// explicitly try something other than mpl::int_
BOOST_TEST((boost::fusion::at<boost::mpl::integral_c<long, 0> >(t1) == 101));
BOOST_TEST((boost::fusion::at<boost::mpl::integral_c<long, 1> >(t1) == 'z'));
}
{ // testing size & empty
typedef FUSION_SEQUENCE<int, float, double> t1;
typedef FUSION_SEQUENCE<> t2;
BOOST_STATIC_ASSERT(FUSION_SIZE<t1>::value == 3);
BOOST_STATIC_ASSERT(FUSION_SIZE<t2>::value == 0);
BOOST_STATIC_ASSERT(!boost::fusion::result_of::empty<t1>::value);
BOOST_STATIC_ASSERT(boost::fusion::result_of::empty<t2>::value);
}
{ // testing front & back
typedef FUSION_SEQUENCE<int, float, std::string> tup;
tup t(1, 2.2f, "Kimpo");
BOOST_TEST(front(t) == 1);
#if !defined(FUSION_FORWARD_ONLY) // list has no back
BOOST_TEST(back(t) == "Kimpo");
#endif
}
{ // testing is_sequence
typedef FUSION_SEQUENCE<int, float, double> t1;
typedef FUSION_SEQUENCE<> t2;
typedef FUSION_SEQUENCE<char> t3;
BOOST_STATIC_ASSERT(traits::is_sequence<t1>::value);
BOOST_STATIC_ASSERT(traits::is_sequence<t2>::value);
BOOST_STATIC_ASSERT(traits::is_sequence<t3>::value);
BOOST_STATIC_ASSERT(!traits::is_sequence<int>::value);
BOOST_STATIC_ASSERT(!traits::is_sequence<char>::value);
}
{ // testing mpl compatibility
// test begin, end, next, prior, advance, size, deref, etc.
//~ typedef FUSION_SEQUENCE<int, float, bool, char> tuple_type;
//~ test_intrinsics1<tuple_type> test1;
//~ (void)test1; // prevent unused variable warning
// test an algorithm
typedef FUSION_SEQUENCE<int, float, double> t1;
typedef boost::mpl::find<t1, float>::type iter;
typedef boost::mpl::deref<iter>::type type;
BOOST_STATIC_ASSERT((boost::is_same<type, float>::value));
}
}
|
