1// { dg-options "-std=gnu++11" }
2//
3// Copyright (C) 2011-2015 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10//
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15//
16// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING3.  If not see
18// <http://www.gnu.org/licenses/>.
19
20#include <tr2/type_traits>
21#include <typeinfo>
22#include <stdexcept>
23
24struct A { };
25struct B1 : virtual public A { };
26struct B2 : virtual public A { };
27struct C : public B1, public B2 { };
28
29void test()
30{
31  bool test __attribute__((unused)) = true;
32
33  // 1
34  {
35    typedef std::tr2::bases<A>::type tl;
36    static_assert(tl::empty::value, "error");
37  }
38
39  // 2
40  {
41    typedef std::tr2::bases<B1>::type tl1;
42    typedef std::tr2::bases<B2>::type tl2;
43
44    // Sanity check w/ runtime.
45    bool eq = typeid(tl1) == typeid(tl2);
46    if (!eq)
47      throw std::logic_error("typelist not equal");
48
49    // Sanity check.
50    static_assert(tl1::empty::value != std::true_type::value, "!empty");
51    static_assert(tl2::empty::value != std::true_type::value, "!empty");
52
53    typedef tl1::first::type		tl1_first;
54    typedef tl1::rest::type		tl1_rest;
55    typedef tl2::first::type		tl2_first;
56    typedef tl2::rest::type		tl2_rest;
57
58    eq = typeid(tl1_first) == typeid(tl2_first);
59    if (!eq)
60      throw std::logic_error("base not equal");
61
62    static_assert(tl1_rest::empty::value == std::true_type::value, "empty");
63    static_assert(tl2_rest::empty::value == std::true_type::value, "empty");
64  }
65
66  // 3
67  {
68    typedef std::tr2::bases<C>::type tl;
69
70    // Sanity check.
71    static_assert(tl::empty::value != std::true_type::value, "!empty");
72
73    typedef tl::first::type		tl1_first;
74    typedef tl::rest::type		tl2;
75    typedef tl2::first::type		tl2_first;
76    typedef tl2::rest::type		tl3;
77    typedef tl3::first::type		tl3_first;
78    typedef tl3::rest::type		tl4;
79
80    bool eq = typeid(tl1_first) == typeid(tl2_first);
81    if (eq)
82      throw std::logic_error("bases are not equal");
83
84    eq = typeid(tl2_first) == typeid(tl3_first);
85    if (eq)
86      throw std::logic_error("bases are not equal");
87
88    static_assert(tl4::empty::value == std::true_type::value, "empty");
89  }
90
91}
92
93int main()
94{
95  test();
96  return 0;
97}
98