| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // struct destroying_delete_t { |
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| 10 | // explicit destroying_delete_t() = default; |
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| 11 | // }; |
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| 12 | // inline constexpr destroying_delete_t destroying_delete{}; |
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| 13 | |
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| 14 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
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| 15 | |
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| 16 | // Test only the library parts of destroying delete in this test. |
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| 17 | // Verify that it's properly declared after C++17 and that it's constexpr. |
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| 18 | // |
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| 19 | // Other tests will check the language side of things -- but those are |
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| 20 | // limited to newer compilers. |
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| 21 | |
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| 22 | #include <new> |
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| 23 | |
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| 24 | #include <cassert> |
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| 25 | #include <type_traits> |
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| 26 | |
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| 27 | #include "test_macros.h" |
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| 28 | #include "test_convertible.h" |
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| 29 | |
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| 30 | #ifdef __cpp_impl_destroying_delete |
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| 31 | # ifndef __cpp_lib_destroying_delete |
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| 32 | # error "Expected __cpp_lib_destroying_delete to be defined" |
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| 33 | # elif __cpp_lib_destroying_delete < 201806L |
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| 34 | # error "Unexpected value of __cpp_lib_destroying_delete" |
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| 35 | # endif |
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| 36 | #else |
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| 37 | # ifdef __cpp_lib_destroying_delete |
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| 38 | # error "__cpp_lib_destroying_delete should not be defined unless the compiler supports it" |
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| 39 | # endif |
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| 40 | #endif |
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| 41 | |
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| 42 | constexpr bool test_constexpr(std::destroying_delete_t) { |
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| 43 | return true; |
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| 44 | } |
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| 45 | |
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| 46 | int main(int, char**) { |
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| 47 | static_assert(std::is_default_constructible<std::destroying_delete_t>::value, "" ); |
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| 48 | static_assert(!test_convertible<std::destroying_delete_t>(), "" ); |
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| 49 | constexpr std::destroying_delete_t dd{}; |
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| 50 | static_assert(&dd != &std::destroying_delete, "" ); |
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| 51 | static_assert(test_constexpr(std::destroying_delete), "" ); |
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| 52 | return 0; |
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| 53 | } |
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| 54 | |
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