1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // UNSUPPORTED: c++03
10 
11 // Aligned allocations are not supported on macOS < 10.13
12 // Note: use 'unsupported' instead of 'xfail' to ensure
13 // we won't pass prior to c++17.
14 // UNSUPPORTED: with_system_cxx_lib=macosx10.12
15 // UNSUPPORTED: with_system_cxx_lib=macosx10.11
16 // UNSUPPORTED: with_system_cxx_lib=macosx10.10
17 // UNSUPPORTED: with_system_cxx_lib=macosx10.9
18 
19 
20 // <memory>
21 
22 // template <class T>
23 //   pair<T*, ptrdiff_t>
24 //   get_temporary_buffer(ptrdiff_t n);
25 //
26 // template <class T>
27 //   void
28 //   return_temporary_buffer(T* p);
29 
30 #include <memory>
31 #include <cassert>
32 
33 #include "test_macros.h"
34 
35 struct alignas(32) A {
36     int field;
37 };
38 
main(int,char **)39 int main(int, char**)
40 {
41     std::pair<A*, std::ptrdiff_t> ip = std::get_temporary_buffer<A>(5);
42     assert(!(ip.first == nullptr) ^ (ip.second == 0));
43     assert(reinterpret_cast<uintptr_t>(ip.first) % alignof(A) == 0);
44     std::return_temporary_buffer(ip.first);
45 
46   return 0;
47 }
48