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