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b32b8144 | 1 | // Copyright Louis Dionne 2013-2017 |
7c673cae FG |
2 | // Distributed under the Boost Software License, Version 1.0. |
3 | // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) | |
4 | ||
5 | #include <boost/hana/assert.hpp> | |
6 | #include <boost/hana/equal.hpp> | |
7 | #include <boost/hana/type.hpp> | |
8 | namespace hana = boost::hana; | |
9 | ||
10 | ||
11 | using Function = void(); | |
12 | void function() { } | |
13 | ||
14 | int main() { | |
15 | { | |
16 | struct T { }; | |
17 | T t; | |
18 | ||
19 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
20 | hana::typeid_(T{}), | |
21 | hana::type_c<T> | |
22 | )); | |
23 | ||
24 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
25 | hana::typeid_(t), | |
26 | hana::type_c<T> | |
27 | )); | |
28 | } | |
29 | ||
30 | // [cv-qualified] reference types | |
31 | { | |
32 | struct T { }; | |
33 | T t; | |
34 | ||
35 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
36 | hana::typeid_(static_cast<T&>(t)), | |
37 | hana::type_c<T> | |
38 | )); | |
39 | ||
40 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
41 | hana::typeid_(static_cast<T const&>(t)), | |
42 | hana::type_c<T> | |
43 | )); | |
44 | ||
45 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
46 | hana::typeid_(static_cast<T volatile&>(t)), | |
47 | hana::type_c<T> | |
48 | )); | |
49 | ||
50 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
51 | hana::typeid_(static_cast<T const volatile&>(t)), | |
52 | hana::type_c<T> | |
53 | )); | |
54 | } | |
55 | ||
56 | // [cv-qualified] rvalue reference types | |
57 | { | |
58 | struct T { }; | |
59 | T t; | |
60 | ||
61 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
62 | hana::typeid_(static_cast<T&&>(t)), | |
63 | hana::type_c<T> | |
64 | )); | |
65 | ||
66 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
67 | hana::typeid_(static_cast<T const &&>(t)), | |
68 | hana::type_c<T> | |
69 | )); | |
70 | ||
71 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
72 | hana::typeid_(static_cast<T volatile&&>(t)), | |
73 | hana::type_c<T> | |
74 | )); | |
75 | ||
76 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
77 | hana::typeid_(static_cast<T const volatile&&>(t)), | |
78 | hana::type_c<T> | |
79 | )); | |
80 | } | |
81 | ||
82 | // typeid_(type_c<T>) is the identity function | |
83 | { | |
84 | struct T; | |
85 | auto const type_const = hana::type_c<T>; | |
86 | auto const& type_const_ref = hana::type_c<T>; | |
87 | auto& type_ref = hana::type_c<T>; | |
88 | auto&& type_ref_ref = static_cast<decltype(type_ref)&&>(type_ref); | |
89 | ||
90 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
91 | hana::typeid_(hana::type_c<T>), | |
92 | hana::type_c<T> | |
93 | )); | |
94 | ||
95 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
96 | hana::typeid_(type_const), | |
97 | hana::type_c<T> | |
98 | )); | |
99 | ||
100 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
101 | hana::typeid_(type_const_ref), | |
102 | hana::type_c<T> | |
103 | )); | |
104 | ||
105 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
106 | hana::typeid_(type_ref), | |
107 | hana::type_c<T> | |
108 | )); | |
109 | ||
110 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
111 | hana::typeid_(type_ref_ref), | |
112 | hana::type_c<T> | |
113 | )); | |
114 | } | |
115 | ||
116 | // make sure we don't read from non-constexpr variables | |
117 | { | |
118 | struct T; | |
119 | auto t = hana::type_c<T>; | |
120 | auto x = 1; | |
121 | constexpr auto r1 = hana::typeid_(t); (void)r1; | |
122 | constexpr auto r2 = hana::typeid_(x); (void)r2; | |
123 | } | |
124 | ||
125 | // typeid_ with builtin arrays, function pointers and other weirdos | |
126 | { | |
127 | struct T { }; | |
128 | using A = T[3]; | |
129 | A a; | |
130 | A& a_ref = a; | |
131 | A const& a_const_ref = a; | |
132 | ||
133 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
134 | hana::typeid_(a), | |
135 | hana::type_c<A> | |
136 | )); | |
137 | ||
138 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
139 | hana::typeid_(a_ref), | |
140 | hana::type_c<A> | |
141 | )); | |
142 | ||
143 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
144 | hana::typeid_(a_const_ref), | |
145 | hana::type_c<A> | |
146 | )); | |
147 | } | |
148 | { | |
149 | using Fptr = int(*)(); | |
150 | Fptr f; | |
151 | Fptr& f_ref = f; | |
152 | Fptr const& f_const_ref = f; | |
153 | ||
154 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
155 | hana::typeid_(f), | |
156 | hana::type_c<Fptr> | |
157 | )); | |
158 | ||
159 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
160 | hana::typeid_(f_ref), | |
161 | hana::type_c<Fptr> | |
162 | )); | |
163 | ||
164 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
165 | hana::typeid_(f_const_ref), | |
166 | hana::type_c<Fptr> | |
167 | )); | |
168 | } | |
169 | { | |
170 | Function& function_ref = function; | |
171 | ||
172 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
173 | hana::typeid_(function), | |
174 | hana::type_c<Function> | |
175 | )); | |
176 | ||
177 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
178 | hana::typeid_(function_ref), | |
179 | hana::type_c<Function> | |
180 | )); | |
181 | } | |
182 | } |