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// 25.3.2 [lib.alg.nth.element]
19
20// { dg-do compile }
21
22#include <algorithm>
23#include <testsuite_iterators.h>
24
25using __gnu_test::random_access_iterator_wrapper;
26
27struct S { };
28
29bool
30operator<(const S&, const S&) {return true;}
31
32struct X { };
33
34bool
35predicate(const X&, const X&) {return true;}
36
37void
38test1(random_access_iterator_wrapper<S>& s)
39{ std::nth_element(s, s, s); }
40
41void
42test2(random_access_iterator_wrapper<X>& x)
43{ std::nth_element(x, x, x, predicate); }
44
45