member_function.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// template<Returnable R, class T, CopyConstructible... Args>
13//   unspecified mem_fn(R (T::* pm)(Args...));
14
15#include <functional>
16#include <cassert>
17
18struct A
19{
20    char test0() {return 'a';}
21    char test1(int) {return 'b';}
22    char test2(int, double) {return 'c';}
23};
24
25template <class F>
26void
27test0(F f)
28{
29    {
30    A a;
31    assert(f(a) == 'a');
32    A* ap = &a;
33    assert(f(ap) == 'a');
34    }
35}
36
37template <class F>
38void
39test1(F f)
40{
41    {
42    A a;
43    assert(f(a, 1) == 'b');
44    A* ap = &a;
45    assert(f(ap, 2) == 'b');
46    }
47}
48
49template <class F>
50void
51test2(F f)
52{
53    {
54    A a;
55    assert(f(a, 1, 2) == 'c');
56    A* ap = &a;
57    assert(f(ap, 2, 3.5) == 'c');
58    }
59}
60
61int main()
62{
63    test0(std::mem_fn(&A::test0));
64    test1(std::mem_fn(&A::test1));
65    test2(std::mem_fn(&A::test2));
66}
67