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
|
/*=============================================================================
Copyright (c) 2016 Kohei Takahashi
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/container.hpp>
#include <boost/fusion/sequence.hpp>
#include <boost/fusion/sequence/io/out.hpp>
#include <boost/fusion/iterator/equal_to.hpp>
#include <boost/fusion/adapted/struct/define_assoc_struct.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/mpl/is_sequence.hpp>
#include <boost/static_assert.hpp>
#include <iostream>
BOOST_FUSION_DEFINE_ASSOC_STRUCT(BOOST_PP_EMPTY(), empty_struct, )
int
main()
{
using namespace boost;
using namespace boost::fusion;
std::cout << tuple_open('[');
std::cout << tuple_close(']');
std::cout << tuple_delimiter(", ");
{
BOOST_MPL_ASSERT_NOT((traits::is_view<empty_struct>));
BOOST_STATIC_ASSERT(!traits::is_view<empty_struct>::value);
empty_struct e;
std::cout << e << std::endl;
BOOST_TEST(e == make_vector());
BOOST_STATIC_ASSERT(fusion::result_of::size<empty_struct>::value == 0);
BOOST_STATIC_ASSERT(fusion::result_of::empty<empty_struct>::value);
}
{
vector<> v;
empty_struct e;
BOOST_TEST(v == e);
BOOST_TEST_NOT(v != e);
BOOST_TEST_NOT(v < e);
BOOST_TEST(v <= e);
BOOST_TEST_NOT(v > e);
BOOST_TEST(v >= e);
}
{
empty_struct e;
// conversion from empty_struct to vector
vector<> v(e);
v = e;
// conversion from empty_struct to list
//list<> l(e);
//l = e;
}
{ // begin/end
typedef fusion::result_of::begin<empty_struct>::type b;
typedef fusion::result_of::end<empty_struct>::type e;
BOOST_MPL_ASSERT((fusion::result_of::equal_to<b, e>));
}
BOOST_MPL_ASSERT((mpl::is_sequence<empty_struct>));
BOOST_MPL_ASSERT_NOT((fusion::result_of::has_key<empty_struct, void>));
BOOST_MPL_ASSERT_NOT((fusion::result_of::has_key<empty_struct, int>));
return boost::report_errors();
}
|
