| 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 | // UNSUPPORTED: c++03, c++11, c++14 |
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| 10 | // TODO: Change to XFAIL once https://github.com/llvm/llvm-project/issues/40340 is fixed |
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| 11 | // UNSUPPORTED: availability-pmr-missing |
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| 12 | |
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| 13 | // <memory_resource> |
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| 14 | |
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| 15 | // template <class T> class polymorphic_allocator |
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| 16 | |
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| 17 | // template <class U> |
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| 18 | // void polymorphic_allocator<T>::destroy(U * ptr); |
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| 19 | |
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| 20 | #include <memory_resource> |
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| 21 | #include <cassert> |
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| 22 | #include <new> |
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| 23 | #include <type_traits> |
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| 24 | |
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| 25 | #include "test_macros.h" |
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| 26 | |
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| 27 | int count = 0; |
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| 28 | |
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| 29 | struct destroyable { |
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| 30 | destroyable() { ++count; } |
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| 31 | ~destroyable() { --count; } |
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| 32 | }; |
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| 33 | |
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| 34 | int main(int, char**) { |
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| 35 | typedef std::pmr::polymorphic_allocator<double> A; |
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| 36 | { |
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| 37 | A a; |
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| 38 | ASSERT_SAME_TYPE(decltype(a.destroy((destroyable*)nullptr)), void); |
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| 39 | } |
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| 40 | { |
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| 41 | alignas(destroyable) char buffer[sizeof(destroyable)]; |
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| 42 | destroyable* ptr = ::new (buffer) destroyable(); |
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| 43 | assert(count == 1); |
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| 44 | A{}.destroy(ptr); |
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| 45 | assert(count == 0); |
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| 46 | } |
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| 47 | |
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| 48 | return 0; |
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| 49 | } |
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| 50 | |
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