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 | // <functional> |
10 | |
11 | // reference_wrapper |
12 | |
13 | // template <ObjectType T> reference_wrapper<T> ref(T& t); |
14 | |
15 | #include <functional> |
16 | #include <cassert> |
17 | |
18 | #include "test_macros.h" |
19 | |
20 | TEST_CONSTEXPR_CXX20 bool test() |
21 | { |
22 | int i = 0; |
23 | std::reference_wrapper<int> r = std::ref(i); |
24 | assert(&r.get() == &i); |
25 | return true; |
26 | } |
27 | |
28 | int main(int, char**) |
29 | { |
30 | test(); |
31 | #if TEST_STD_VER > 17 |
32 | static_assert(test()); |
33 | #endif |
34 | |
35 | return 0; |
36 | } |
37 | |