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: no-threads
10
11// <future>
12
13// class promise<R>
14
15// template <class R, class Alloc>
16// struct uses_allocator<promise<R>, Alloc>
17// : true_type { };
18
19#include <future>
20#include "test_macros.h"
21#include "test_allocator.h"
22
23int main(int, char**)
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 return 0;
30}
31

source code of libcxx/test/std/thread/futures/futures.promise/uses_allocator.pass.cpp