| 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 |
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| 10 | |
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| 11 | // Aligned allocations are not supported on macOS < 10.13 |
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| 12 | // Note: use 'unsupported' instead of 'xfail' to ensure |
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| 13 | // we won't pass prior to c++17. |
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| 14 | // XFAIL: stdlib=apple-libc++ && target={{.+}}-apple-macosx10.{{9|10|11|12}} |
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| 15 | |
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| 16 | // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS |
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| 17 | |
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| 18 | // <memory> |
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| 19 | |
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| 20 | // template <class T> |
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| 21 | // pair<T*, ptrdiff_t> |
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| 22 | // get_temporary_buffer(ptrdiff_t n); |
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| 23 | // |
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| 24 | // template <class T> |
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| 25 | // void |
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| 26 | // return_temporary_buffer(T* p); |
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| 27 | |
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| 28 | #include <cassert> |
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| 29 | #include <cstdint> |
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| 30 | #include <memory> |
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| 31 | #include <utility> |
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| 32 | |
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| 33 | #include "test_macros.h" |
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| 34 | |
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| 35 | struct alignas(32) A { |
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| 36 | int field; |
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| 37 | }; |
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| 38 | |
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| 39 | int main(int, char**) |
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| 40 | { |
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| 41 | std::pair<A*, std::ptrdiff_t> ip = std::get_temporary_buffer<A>(len: 5); |
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| 42 | assert(!(ip.first == nullptr) ^ (ip.second == 0)); |
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| 43 | assert(reinterpret_cast<std::uintptr_t>(ip.first) % alignof(A) == 0); |
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| 44 | std::return_temporary_buffer(p: ip.first); |
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| 45 | |
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| 46 | return 0; |
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| 47 | } |
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| 48 | |
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