1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include <memory>
11 #include <cassert>
12
13 #if __cplusplus >= 201103L
14 // #include <memory>
15 //
16 // template <class Alloc>
17 // struct allocator_traits
18 // {
19 // typedef Alloc allocator_type;
20 // typedef typename allocator_type::value_type
21 // value_type;
22 //
23 // typedef Alloc::pointer | value_type* pointer;
24 // typedef Alloc::const_pointer
25 // | pointer_traits<pointer>::rebind<const value_type>
26 // const_pointer;
27 // typedef Alloc::void_pointer
28 // | pointer_traits<pointer>::rebind<void>
29 // void_pointer;
30 // typedef Alloc::const_void_pointer
31 // | pointer_traits<pointer>::rebind<const void>
32 // const_void_pointer;
33
34 template <typename Alloc>
test_pointer()35 void test_pointer()
36 {
37 typename std::allocator_traits<Alloc>::pointer vp;
38 typename std::allocator_traits<Alloc>::const_pointer cvp;
39
40 static_assert(std::is_same<bool, decltype( vp == vp)>::value, "");
41 static_assert(std::is_same<bool, decltype( vp != vp)>::value, "");
42 static_assert(std::is_same<bool, decltype( vp > vp)>::value, "");
43 static_assert(std::is_same<bool, decltype( vp >= vp)>::value, "");
44 static_assert(std::is_same<bool, decltype( vp < vp)>::value, "");
45 static_assert(std::is_same<bool, decltype( vp <= vp)>::value, "");
46
47 static_assert(std::is_same<bool, decltype( vp == cvp)>::value, "");
48 static_assert(std::is_same<bool, decltype(cvp == vp)>::value, "");
49 static_assert(std::is_same<bool, decltype( vp != cvp)>::value, "");
50 static_assert(std::is_same<bool, decltype(cvp != vp)>::value, "");
51 static_assert(std::is_same<bool, decltype( vp > cvp)>::value, "");
52 static_assert(std::is_same<bool, decltype(cvp > vp)>::value, "");
53 static_assert(std::is_same<bool, decltype( vp >= cvp)>::value, "");
54 static_assert(std::is_same<bool, decltype(cvp >= vp)>::value, "");
55 static_assert(std::is_same<bool, decltype( vp < cvp)>::value, "");
56 static_assert(std::is_same<bool, decltype(cvp < vp)>::value, "");
57 static_assert(std::is_same<bool, decltype( vp <= cvp)>::value, "");
58 static_assert(std::is_same<bool, decltype(cvp <= vp)>::value, "");
59
60 static_assert(std::is_same<bool, decltype(cvp == cvp)>::value, "");
61 static_assert(std::is_same<bool, decltype(cvp != cvp)>::value, "");
62 static_assert(std::is_same<bool, decltype(cvp > cvp)>::value, "");
63 static_assert(std::is_same<bool, decltype(cvp >= cvp)>::value, "");
64 static_assert(std::is_same<bool, decltype(cvp < cvp)>::value, "");
65 static_assert(std::is_same<bool, decltype(cvp <= cvp)>::value, "");
66 }
67
68 template <typename Alloc>
test_void_pointer()69 void test_void_pointer()
70 {
71 typename std::allocator_traits<Alloc>::void_pointer vp;
72 typename std::allocator_traits<Alloc>::const_void_pointer cvp;
73
74 static_assert(std::is_same<bool, decltype( vp == vp)>::value, "");
75 static_assert(std::is_same<bool, decltype( vp != vp)>::value, "");
76 static_assert(std::is_same<bool, decltype( vp > vp)>::value, "");
77 static_assert(std::is_same<bool, decltype( vp >= vp)>::value, "");
78 static_assert(std::is_same<bool, decltype( vp < vp)>::value, "");
79 static_assert(std::is_same<bool, decltype( vp <= vp)>::value, "");
80
81 static_assert(std::is_same<bool, decltype( vp == cvp)>::value, "");
82 static_assert(std::is_same<bool, decltype(cvp == vp)>::value, "");
83 static_assert(std::is_same<bool, decltype( vp != cvp)>::value, "");
84 static_assert(std::is_same<bool, decltype(cvp != vp)>::value, "");
85 static_assert(std::is_same<bool, decltype( vp > cvp)>::value, "");
86 static_assert(std::is_same<bool, decltype(cvp > vp)>::value, "");
87 static_assert(std::is_same<bool, decltype( vp >= cvp)>::value, "");
88 static_assert(std::is_same<bool, decltype(cvp >= vp)>::value, "");
89 static_assert(std::is_same<bool, decltype( vp < cvp)>::value, "");
90 static_assert(std::is_same<bool, decltype(cvp < vp)>::value, "");
91 static_assert(std::is_same<bool, decltype( vp <= cvp)>::value, "");
92 static_assert(std::is_same<bool, decltype(cvp <= vp)>::value, "");
93
94 static_assert(std::is_same<bool, decltype(cvp == cvp)>::value, "");
95 static_assert(std::is_same<bool, decltype(cvp != cvp)>::value, "");
96 static_assert(std::is_same<bool, decltype(cvp > cvp)>::value, "");
97 static_assert(std::is_same<bool, decltype(cvp >= cvp)>::value, "");
98 static_assert(std::is_same<bool, decltype(cvp < cvp)>::value, "");
99 static_assert(std::is_same<bool, decltype(cvp <= cvp)>::value, "");
100 }
101
102 struct Foo { int x; };
103
main()104 int main()
105 {
106 test_pointer<std::allocator<char>> ();
107 test_pointer<std::allocator<int>> ();
108 test_pointer<std::allocator<Foo>> ();
109
110 test_void_pointer<std::allocator<char>> ();
111 test_void_pointer<std::allocator<int>> ();
112 test_void_pointer<std::allocator<Foo>> ();
113 }
114 #else
main()115 int main() {}
116 #endif
117