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a945c346 | 1 | // Copyright (C) 2022-2024 Free Software Foundation, Inc. |
9a15d3be MP |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
9a15d3be | 18 | // { dg-do compile { target c++23 } } |
f4ab6846 | 19 | // { dg-add-options no_pch } |
9a15d3be MP |
20 | |
21 | #include <type_traits> | |
9a15d3be MP |
22 | |
23 | #ifndef __cpp_lib_reference_from_temporary | |
f4ab6846 | 24 | # error "Feature test macro for reference_from_temporary is missing in <type_traits>" |
9a15d3be | 25 | #elif __cpp_lib_reference_from_temporary < 202202L |
f4ab6846 | 26 | # error "Feature test macro for reference_from_temporary has wrong value in <type_traits>" |
9a15d3be MP |
27 | #endif |
28 | ||
f4ab6846 JW |
29 | #include <testsuite_tr1.h> |
30 | ||
9a15d3be MP |
31 | void test01() |
32 | { | |
33 | using std::reference_constructs_from_temporary; | |
34 | using std::reference_converts_from_temporary; | |
35 | using namespace __gnu_test; | |
36 | ||
37 | struct A { A(); }; | |
38 | ||
39 | struct B { | |
40 | operator int(); | |
41 | explicit operator int&&(); | |
42 | }; | |
43 | ||
44 | struct C { | |
45 | operator int(); | |
46 | explicit operator int&(); | |
47 | }; | |
48 | ||
49 | static_assert(test_property<reference_constructs_from_temporary, int, int>(false), ""); | |
50 | static_assert(test_property<reference_constructs_from_temporary, int&, void>(false), ""); | |
51 | static_assert(test_property<reference_constructs_from_temporary, int&, const volatile void>(false), ""); | |
52 | static_assert(test_property<reference_constructs_from_temporary, void, void>(false), ""); | |
53 | static_assert(test_property<reference_constructs_from_temporary, int&, int>(false), ""); | |
54 | static_assert(test_property<reference_constructs_from_temporary, int&, int&>(false), ""); | |
55 | static_assert(test_property<reference_constructs_from_temporary, int&, int&&>(false), ""); | |
56 | static_assert(test_property<reference_constructs_from_temporary, int&, long>(false), ""); | |
57 | static_assert(test_property<reference_constructs_from_temporary, int&, long&>(false), ""); | |
58 | static_assert(test_property<reference_constructs_from_temporary, int&, long&&>(false), ""); | |
59 | static_assert(test_property<reference_constructs_from_temporary, const int&, int>(true), ""); | |
60 | static_assert(test_property<reference_constructs_from_temporary, const int&, int&>(false), ""); | |
61 | static_assert(test_property<reference_constructs_from_temporary, const int&, int&&>(false), ""); | |
62 | static_assert(test_property<reference_constructs_from_temporary, const int&, long>(true), ""); | |
63 | static_assert(test_property<reference_constructs_from_temporary, const int&, long&>(true), ""); | |
64 | static_assert(test_property<reference_constructs_from_temporary, const int&, long&&>(true), ""); | |
65 | static_assert(test_property<reference_constructs_from_temporary, int&&, int>(true), ""); | |
66 | static_assert(test_property<reference_constructs_from_temporary, int&&, int&>(false), ""); | |
67 | static_assert(test_property<reference_constructs_from_temporary, int&&, int&&>(false), ""); | |
68 | static_assert(test_property<reference_constructs_from_temporary, int&&, long>(true), ""); | |
69 | static_assert(test_property<reference_constructs_from_temporary, int&&, long&>(true), ""); | |
70 | static_assert(test_property<reference_constructs_from_temporary, int&&, long&&>(true), ""); | |
71 | static_assert(test_property<reference_constructs_from_temporary, const A&, A>(true), ""); | |
72 | static_assert(test_property<reference_constructs_from_temporary, const A&, A&&>(false), ""); | |
73 | static_assert(test_property<reference_constructs_from_temporary, A&&, A>(true), ""); | |
74 | static_assert(test_property<reference_constructs_from_temporary, int&, int[]>(false), ""); | |
75 | static_assert(test_property<reference_constructs_from_temporary, const int&, int[]>(false), ""); | |
76 | static_assert(test_property<reference_constructs_from_temporary, int&&, int[]>(false), ""); | |
77 | ||
78 | static_assert(test_property<reference_converts_from_temporary, int, int>(false), ""); | |
79 | static_assert(test_property<reference_converts_from_temporary, int&, void>(false), ""); | |
80 | static_assert(test_property<reference_converts_from_temporary, int&, const volatile void>(false), ""); | |
81 | static_assert(test_property<reference_converts_from_temporary, void, void>(false), ""); | |
82 | static_assert(test_property<reference_converts_from_temporary, int&, int>(false), ""); | |
83 | static_assert(test_property<reference_converts_from_temporary, int&, int&>(false), ""); | |
84 | static_assert(test_property<reference_converts_from_temporary, int&, int&&>(false), ""); | |
85 | static_assert(test_property<reference_converts_from_temporary, int&, long>(false), ""); | |
86 | static_assert(test_property<reference_converts_from_temporary, int&, long&>(false), ""); | |
87 | static_assert(test_property<reference_converts_from_temporary, int&, long&&>(false), ""); | |
88 | static_assert(test_property<reference_converts_from_temporary, const int&, int>(true), ""); | |
89 | static_assert(test_property<reference_converts_from_temporary, const int&, int&>(false), ""); | |
90 | static_assert(test_property<reference_converts_from_temporary, const int&, int&&>(false), ""); | |
91 | static_assert(test_property<reference_converts_from_temporary, const int&, long>(true), ""); | |
92 | static_assert(test_property<reference_converts_from_temporary, const int&, long&>(true), ""); | |
93 | static_assert(test_property<reference_converts_from_temporary, const int&, long&&>(true), ""); | |
94 | static_assert(test_property<reference_converts_from_temporary, int&&, int>(true), ""); | |
95 | static_assert(test_property<reference_converts_from_temporary, int&&, int&>(false), ""); | |
96 | static_assert(test_property<reference_converts_from_temporary, int&&, int&&>(false), ""); | |
97 | static_assert(test_property<reference_converts_from_temporary, int&&, long>(true), ""); | |
98 | static_assert(test_property<reference_converts_from_temporary, int&&, long&>(true), ""); | |
99 | static_assert(test_property<reference_converts_from_temporary, int&&, long&&>(true), ""); | |
100 | static_assert(test_property<reference_converts_from_temporary, const A&, A>(true), ""); | |
101 | static_assert(test_property<reference_converts_from_temporary, const A&, A&&>(false), ""); | |
102 | static_assert(test_property<reference_converts_from_temporary, A&&, A>(true), ""); | |
103 | static_assert(test_property<reference_converts_from_temporary, int&, int[]>(false), ""); | |
104 | static_assert(test_property<reference_converts_from_temporary, const int&, int[]>(false), ""); | |
105 | static_assert(test_property<reference_converts_from_temporary, int&&, int[]>(false), ""); | |
106 | ||
107 | static_assert(test_property<reference_constructs_from_temporary, int&&, B>(false), ""); | |
108 | static_assert(test_property<reference_constructs_from_temporary, const int&, C>(false), ""); | |
109 | static_assert(test_property<reference_converts_from_temporary, int&&, B>(true), ""); | |
110 | static_assert(test_property<reference_converts_from_temporary, const int&, C>(true), ""); | |
111 | } |