ref_2.pass.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <functional>
11
12// reference_wrapper
13
14// template <ObjectType T> reference_wrapper<T> ref(reference_wrapper<T>t);
15
16#include <functional>
17#include <cassert>
18
19int main()
20{
21    int i = 0;
22    std::reference_wrapper<int> r1 = std::ref(i);
23    std::reference_wrapper<int> r2 = std::ref(r1);
24    assert(&r2.get() == &i);
25}
26