1// 2001-04-06 gdr
2
3// Copyright (C) 2000, 2005, 2009 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 <vector>
21#include <algorithm>
22
23//
24// 25.1.8 Make sure std::equal doesn't make any extra assumption
25//        about operator== and operator!=
26//
27
28struct X { };
29
30bool operator==(X, X) { return true; }
31
32// Not implemented on purpose.  { dg-do link }
33bool operator!=(X, X);
34
35int main()
36{
37  std::vector<X> v, w;
38  return !std::equal(v.begin(), v.end(), w.begin());
39}
40