1// Copyright (C) 2005, 2009 Free Software Foundation, Inc.
2//
3// This file is part of the GNU ISO C++ Library.  This library is free
4// software; you can redistribute it and/or modify it under the
5// terms of the GNU General Public License as published by the
6// Free Software Foundation; either version 3, or (at your option)
7// any later version.
8
9// This library is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License along
15// with this library; see the file COPYING3.  If not see
16// <http://www.gnu.org/licenses/>.
17
18// 25.3.8 [lib.alg.lex.comparison]
19
20// { dg-do compile }
21
22
23#include <algorithm>
24#include <testsuite_iterators.h>
25
26using __gnu_test::input_iterator_wrapper;
27
28struct Lhs1 { };
29
30struct Rhs1 { };
31
32bool
33operator<(const Lhs1&, const Rhs1&) {return true;}
34
35bool
36operator<(const Rhs1&, const Lhs1&) {return false;}
37
38struct X { };
39
40bool
41predicate(const X&, const X&) {return true;}
42
43bool
44test1(input_iterator_wrapper<Lhs1>& lhs1,
45      input_iterator_wrapper<Rhs1>& rhs1)
46{ return std::lexicographical_compare(lhs1, lhs1, rhs1, rhs1); }
47
48bool
49test2(input_iterator_wrapper<X>& x)
50{ return std::lexicographical_compare(x, x, x, x, predicate); }
51