1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // UNSUPPORTED: libcpp-has-no-threads
11
12 // This test is marked XFAIL and not UNSUPPORTED because the non-variadic
13 // declaration of packaged_task is available in C++03. Therefore the test
14 // should fail because the static_assert fires and not because std::packaged_task
15 // in undefined.
16 // XFAIL: c++98, c++03
17
18 // <future>
19 // REQUIRES: c++11 || c++14
20 // packaged_task allocator support was removed in C++17 (LWG 2976)
21
22 // class packaged_task<R(ArgTypes...)>
23
24 // template <class Callable, class Alloc>
25 // struct uses_allocator<packaged_task<Callable>, Alloc>
26 // : true_type { };
27
28 #include <future>
29 #include "test_allocator.h"
30
main()31 int main()
32 {
33 static_assert((std::uses_allocator<std::packaged_task<double(int, char)>, test_allocator<int> >::value), "");
34 }
35