projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 83ffe9cd | 1 | // Copyright (C) 2018-2023 Free Software Foundation, Inc. |
| 8df27fcb JW |
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 | ||
| 18 | // { dg-options "-std=gnu++2a" } | |
| 19 | // { dg-do compile { target c++2a } } | |
| 20 | ||
| 21 | #include <type_traits> | |
| 22 | #include <testsuite_tr1.h> | |
| 23 | ||
| ce9f305e | 24 | using std::is_nothrow_convertible; |
| ce9f305e | 25 | |
| 8df27fcb JW |
26 | void test01() |
| 27 | { | |
| 8df27fcb JW |
28 | using namespace __gnu_test; |
| 29 | ||
| 30 | // Positive conversion tests. | |
| 31 | static_assert(test_relationship<is_nothrow_convertible, | |
| 32 | int, int>(true)); | |
| 33 | static_assert(test_relationship<is_nothrow_convertible, | |
| 34 | int, const int>(true)); | |
| 35 | static_assert(test_relationship<is_nothrow_convertible, | |
| 36 | volatile int, const int>(true)); | |
| 37 | static_assert(test_relationship<is_nothrow_convertible, | |
| 38 | int, float>(true)); | |
| 39 | static_assert(test_relationship<is_nothrow_convertible, | |
| 40 | double, float>(true)); | |
| 41 | static_assert(test_relationship<is_nothrow_convertible, | |
| 42 | float, int>(true)); | |
| 43 | static_assert(test_relationship<is_nothrow_convertible, | |
| 44 | int*, const int*>(true)); | |
| 45 | static_assert(test_relationship<is_nothrow_convertible, | |
| 46 | int*, void*>(true)); | |
| 47 | static_assert(test_relationship<is_nothrow_convertible, | |
| 48 | int[4], int*>(true)); | |
| 49 | static_assert(test_relationship<is_nothrow_convertible, | |
| 50 | float&, int>(true)); | |
| 51 | static_assert(test_relationship<is_nothrow_convertible, | |
| 52 | int, const int&>(true)); | |
| 53 | static_assert(test_relationship<is_nothrow_convertible, | |
| 54 | const int&, int>(true)); | |
| 55 | static_assert(test_relationship<is_nothrow_convertible, | |
| 56 | float, const int&>(true)); | |
| 57 | static_assert(test_relationship<is_nothrow_convertible, | |
| 58 | int(int), int(*)(int)>(true)); | |
| 59 | static_assert(test_relationship<is_nothrow_convertible, | |
| 60 | int(&)(int), int(*)(int)>(true)); | |
| 61 | static_assert(test_relationship<is_nothrow_convertible, | |
| 62 | EnumType, int>(true)); | |
| 63 | static_assert(test_relationship<is_nothrow_convertible, | |
| 64 | ClassType, ClassType>(true)); | |
| 65 | static_assert(test_relationship<is_nothrow_convertible, | |
| 66 | DerivedType, ClassType>(true)); | |
| 67 | static_assert(test_relationship<is_nothrow_convertible, | |
| 68 | DerivedType*, ClassType*>(true)); | |
| 69 | static_assert(test_relationship<is_nothrow_convertible, | |
| 70 | DerivedType&, ClassType&>(true)); | |
| 71 | ||
| 72 | static_assert(test_relationship<is_nothrow_convertible, | |
| 73 | const int, const int&>(true)); | |
| 74 | ||
| 75 | static_assert(test_relationship<is_nothrow_convertible, | |
| 76 | void, void>(true)); | |
| 77 | static_assert(test_relationship<is_nothrow_convertible, | |
| 78 | const void, void>(true)); | |
| 79 | static_assert(test_relationship<is_nothrow_convertible, | |
| 80 | void, volatile void>(true)); | |
| 81 | static_assert(test_relationship<is_nothrow_convertible, | |
| 82 | double&, NoexceptExplicitClass>(true)); | |
| 83 | static_assert(test_relationship<is_nothrow_convertible, | |
| 84 | NoexceptCopyConsClass, | |
| 85 | NoexceptCopyConsClass>(true)); | |
| 86 | static_assert(test_relationship<is_nothrow_convertible, | |
| 87 | const NoexceptCopyConsClass, | |
| 88 | NoexceptCopyConsClass>(true)); | |
| 89 | static_assert(test_relationship<is_nothrow_convertible, | |
| 90 | const NoexceptCopyConsClass&, | |
| 91 | NoexceptCopyConsClass>(true)); | |
| 92 | static_assert(test_relationship<is_nothrow_convertible, | |
| 93 | NoexceptMoveConsClass, | |
| 94 | NoexceptMoveConsClass>(true)); | |
| 95 | ||
| 96 | static_assert(test_relationship<is_nothrow_convertible, | |
| 97 | int(int), int(&)(int)>(true)); | |
| 98 | ||
| 99 | // Negative conversion tests. | |
| 100 | static_assert(test_relationship<is_nothrow_convertible, | |
| 101 | const int*, int*>(false)); | |
| 102 | static_assert(test_relationship<is_nothrow_convertible, | |
| 103 | int*, float*>(false)); | |
| 104 | static_assert(test_relationship<is_nothrow_convertible, | |
| 105 | const int[4], int*>(false)); | |
| 106 | static_assert(test_relationship<is_nothrow_convertible, | |
| 107 | int[4], int[4]>(false)); | |
| 108 | static_assert(test_relationship<is_nothrow_convertible, | |
| 109 | const int&, int&>(false)); | |
| 110 | static_assert(test_relationship<is_nothrow_convertible, | |
| 111 | float&, int&>(false)); | |
| 112 | static_assert(test_relationship<is_nothrow_convertible, | |
| 113 | float, volatile int&>(false)); | |
| 114 | static_assert(test_relationship<is_nothrow_convertible, | |
| 115 | int(int), int(int)>(false)); | |
| 116 | static_assert(test_relationship<is_nothrow_convertible, | |
| 117 | int(int), int(*)(void)>(false)); | |
| 118 | static_assert(test_relationship<is_nothrow_convertible, | |
| 119 | int(*)(int), int(&)(int)>(false)); | |
| 120 | static_assert(test_relationship<is_nothrow_convertible, | |
| 121 | int, EnumType>(false)); | |
| 122 | static_assert(test_relationship<is_nothrow_convertible, | |
| 123 | int, ClassType>(false)); | |
| 124 | static_assert(test_relationship<is_nothrow_convertible, | |
| 125 | ClassType, DerivedType>(false)); | |
| 126 | static_assert(test_relationship<is_nothrow_convertible, | |
| 127 | ClassType*, DerivedType*>(false)); | |
| 128 | static_assert(test_relationship<is_nothrow_convertible, | |
| 129 | ClassType&, DerivedType&>(false)); | |
| 130 | ||
| 131 | static_assert(test_relationship<is_nothrow_convertible, | |
| 132 | void, int>(false)); | |
| 133 | static_assert(test_relationship<is_nothrow_convertible, | |
| 134 | void, float>(false)); | |
| 135 | static_assert(test_relationship<is_nothrow_convertible, | |
| 136 | void, int(*)(int)>(false)); | |
| 137 | ||
| 138 | // C++0x | |
| 139 | static_assert(test_relationship<is_nothrow_convertible, | |
| 140 | int, void>(false)); | |
| 141 | static_assert(test_relationship<is_nothrow_convertible, | |
| 142 | int[4], void>(false)); | |
| 143 | ||
| 144 | static_assert(test_relationship<is_nothrow_convertible, | |
| 145 | int, int&>(false)); | |
| 146 | static_assert(test_relationship<is_nothrow_convertible, | |
| 147 | float, volatile float&>(false)); | |
| 148 | static_assert(test_relationship<is_nothrow_convertible, | |
| 149 | const volatile int, | |
| 150 | const volatile int&>(false)); | |
| 151 | static_assert(test_relationship<is_nothrow_convertible, | |
| 152 | volatile int, volatile int&>(false)); | |
| 153 | static_assert(test_relationship<is_nothrow_convertible, | |
| 154 | double&, ExplicitClass>(false)); | |
| 155 | static_assert(test_relationship<is_nothrow_convertible, | |
| 156 | int&, ExplicitClass>(false)); | |
| 157 | static_assert(test_relationship<is_nothrow_convertible, | |
| 158 | void*, ExplicitClass>(false)); | |
| 159 | ||
| 160 | static_assert(test_relationship<is_nothrow_convertible, | |
| 161 | ExceptCopyConsClass, | |
| 162 | ExceptCopyConsClass>(false)); | |
| 163 | static_assert(test_relationship<is_nothrow_convertible, | |
| 164 | const ExceptCopyConsClass, | |
| 165 | ExceptCopyConsClass>(false)); | |
| 166 | static_assert(test_relationship<is_nothrow_convertible, | |
| 167 | const ExceptCopyConsClass&, | |
| 168 | ExceptCopyConsClass>(false)); | |
| 169 | static_assert(test_relationship<is_nothrow_convertible, | |
| 170 | ExceptMoveConsClass, | |
| 171 | ExceptMoveConsClass>(false)); | |
| 172 | static_assert(test_relationship<is_nothrow_convertible, | |
| 173 | ExceptMoveConsClass&, | |
| 174 | ExceptMoveConsClass>(false)); | |
| 175 | static_assert(test_relationship<is_nothrow_convertible, | |
| 176 | NoexceptMoveConsClass&, | |
| 177 | NoexceptMoveConsClass>(false)); | |
| 178 | } | |
| ce9f305e JW |
179 | |
| 180 | void test02() | |
| 181 | { | |
| 182 | struct X { }; | |
| 183 | ||
| 184 | struct Y | |
| 185 | { | |
| 186 | explicit Y(X) noexcept; // not viable for implicit conversions | |
| 187 | Y(...); | |
| 188 | }; | |
| 189 | ||
| 190 | static_assert(!is_nothrow_convertible<X, Y>::value, ""); | |
| 191 | } |