1// Copyright (C) 2013-2015 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// { dg-options "-std=gnu++11" }
19// { dg-options "-std=gnu++11 -DSIMULATOR_TEST" { target simulator } }
20// { dg-require-cstdint "" }
21
22// 25.4.1.4 [lib.alg.partial.sort.copy]
23
24#include <algorithm>
25#include <random>
26#include <vector>
27#include <testsuite_hooks.h>
28#include <testsuite_iterators.h>
29#include <testsuite_containergen.h>
30
31using __gnu_test::test_container;
32using __gnu_test::random_access_iterator_wrapper;
33
34typedef test_container<int, random_access_iterator_wrapper> Container;
35
36struct testPartialSortCopy
37{
38  template<typename Container, typename RandomGen>
39  void operator()(Container con, RandomGen& rg)
40  {
41    bool test __attribute__((unused)) = true;
42
43    const int size = con.end() - con.begin();
44    auto dist = std::uniform_int_distribution<>(0, size);
45    const int element = dist(rg);
46
47    std::vector<int> outvec(element + 1); // add +1 to avoid empty issues
48
49    Container out(outvec.data(), outvec.data() + element);
50
51    std::partial_sort_copy(con.begin(), con.end(),
52			   out.begin(), out.begin() + element);
53
54    VERIFY( std::is_sorted(out.begin(), out.begin() + element) );
55
56    std::sort(con.begin(), con.end());
57
58    for (int i = 0; i < element; ++i)
59      VERIFY( con.val(i) == out.val(i) );
60  }
61};
62
63int
64main()
65{
66  __gnu_test::test_containers<Container>(testPartialSortCopy());
67}
68