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 // <functional>
11
12 // reference_wrapper
13
14 // template <ObjectType T> reference_wrapper<T> ref(T& t);
15
16 // Don't allow binding to a temp
17
18 #include <functional>
19
20 struct A {};
21
source()22 const A source() {return A();}
23
main()24 int main()
25 {
26 std::reference_wrapper<const A> r = std::ref(source());
27 }
28