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 // <future>
13 
14 // class promise<R>
15 
16 // template <class R, class Alloc>
17 //   struct uses_allocator<promise<R>, Alloc>
18 //      : true_type { };
19 
20 #include <future>
21 #include "../test_allocator.h"
22 
main()23 int main()
24 {
25     static_assert((std::uses_allocator<std::promise<int>, test_allocator<int> >::value), "");
26     static_assert((std::uses_allocator<std::promise<int&>, test_allocator<int> >::value), "");
27     static_assert((std::uses_allocator<std::promise<void>, test_allocator<void> >::value), "");
28 }
29