conversion.pass.cpp revision c52f43e72dfcea03037729649da84c23b3beb04a 
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// operator T& () const;
15
16#include <functional>
17#include <cassert>
18
19class functor1
20    : public std::unary_function<int, char>
21{
22};
23
24template <class T>
25void
26test(T& t)
27{
28    std::reference_wrapper<T> r(t);
29    T& r2 = r;
30    assert(&r2 == &t);
31}
32
33void f() {}
34
35int main()
36{
37    void (*fp)() = f;
38    test(fp);
39    test(f);
40    functor1 f1;
41    test(f1);
42    int i = 0;
43    test(i);
44    const int j = 0;
45    test(j);
46}
47