| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <functional> |
| |
| // reference_wrapper |
| |
| // operator T& () const; |
| |
| #include <functional> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| class functor1 |
| { |
| }; |
| |
| template <class T> |
| void |
| test(T& t) |
| { |
| std::reference_wrapper<T> r(t); |
| T& r2 = r; |
| assert(&r2 == &t); |
| } |
| |
| void f() {} |
| |
| int main(int, char**) |
| { |
| void (*fp)() = f; |
| test(fp); |
| test(f); |
| functor1 f1; |
| test(f1); |
| int i = 0; |
| test(i); |
| const int j = 0; |
| test(j); |
| |
| return 0; |
| } |