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
|
/*
Copyright 2017 Glen Joseph Fernandes
(glenjofe@gmail.com)
Distributed under the Boost Software License, Version 1.0.
(http://www.boost.org/LICENSE_1_0.txt)
*/
#include <boost/core/pointer_traits.hpp>
#include <boost/core/is_same.hpp>
#include <boost/core/lightweight_test_trait.hpp>
template<class T>
struct P1 { };
template<class T1, class T2>
struct P2 { };
template<class T1, class T2, class T3>
struct P3 { };
#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
template<class T>
struct E1 {
template<class U>
using rebind = E1<bool>;
};
template<class T1, class T2>
struct E2 {
template<class U>
using rebind = E2<bool, T2>;
};
template<class T1, class T2, class T3>
struct E3 {
template<class U>
using rebind = E3<bool, T2, T3>;
};
#endif
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
template<class T, class... U>
struct P { };
#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
template<class T, class... U>
struct E {
template<class V>
using rebind = E<bool, U...>;
};
#endif
#endif
struct R { };
int main()
{
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<char*,
boost::pointer_traits<R*>::rebind_to<char>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<P1<char>,
boost::pointer_traits<P1<R> >::rebind_to<char>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<P2<char, R>,
boost::pointer_traits<P2<R, R> >::rebind_to<char>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<P3<char, R, R>,
boost::pointer_traits<P3<R, R, R> >::rebind_to<char>::type>));
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<P<char, R, R, R>,
boost::pointer_traits<P<R, R, R, R> >::rebind_to<char>::type>));
#endif
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<void*,
boost::pointer_traits<R*>::rebind_to<void>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<P1<void>,
boost::pointer_traits<P1<R> >::rebind_to<void>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<R*,
boost::pointer_traits<void*>::rebind_to<R>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<P1<R>,
boost::pointer_traits<P1<void> >::rebind_to<R>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<const int*,
boost::pointer_traits<R*>::rebind_to<const int>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<P1<const int>,
boost::pointer_traits<P1<R> >::rebind_to<const int>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<int*,
boost::pointer_traits<const R*>::rebind_to<int>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<P1<int>,
boost::pointer_traits<P1<const R> >::rebind_to<int>::type>));
#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<E1<bool>,
boost::pointer_traits<E1<R> >::rebind_to<char>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<E2<bool, R>,
boost::pointer_traits<E2<R, R> >::rebind_to<char>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<E3<bool, R, R>,
boost::pointer_traits<E3<R, R, R> >::rebind_to<char>::type>));
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<E<bool, R, R, R>,
boost::pointer_traits<E<R, R, R, R> >::rebind_to<char>::type>));
#endif
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<E1<bool>,
boost::pointer_traits<E1<R> >::rebind_to<void>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<E1<bool>,
boost::pointer_traits<E1<void> >::rebind_to<R>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<E1<bool>,
boost::pointer_traits<E1<R> >::rebind_to<const int>::type>));
BOOST_TEST_TRAIT_TRUE((boost::core::is_same<E1<bool>,
boost::pointer_traits<E1<const R> >::rebind_to<int>::type>));
#endif
return boost::report_errors();
}
|
