1// { dg-options "-std=gnu++11" }
2// { dg-require-cstdint "" }
3
4// 2010-03-19  Paolo Carlini  <paolo.carlini@oracle.com>
5
6// Copyright (C) 2010-2015 Free Software Foundation, Inc.
7//
8// This file is part of the GNU ISO C++ Library.  This library is free
9// software; you can redistribute it and/or modify it under the
10// terms of the GNU General Public License as published by the
11// Free Software Foundation; either version 3, or (at your option)
12// any later version.
13
14// This library is distributed in the hope that it will be useful,
15// but WITHOUT ANY WARRANTY; without even the implied warranty of
16// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17// GNU General Public License for more details.
18
19// You should have received a copy of the GNU General Public License along
20// with this library; see the file COPYING3.  If not see
21// <http://www.gnu.org/licenses/>.
22
23#include <algorithm>
24#include <random>
25#include <vector>
26#include <testsuite_hooks.h>
27
28void test01()
29{
30  bool test __attribute__((unused)) = true;
31
32  for (unsigned size = 0; size < 50; ++size)
33    {
34      std::vector<int> vref(size);
35      std::iota(vref.begin(), vref.end(), 0);
36      std::vector<int> v1(vref), v2(vref);
37
38      std::ranlux48_base g1(size), g2(size + 1);
39      std::shuffle(v1.begin(), v1.end(), g1);
40      std::shuffle(v2.begin(), v2.end(), g2);
41
42      if (size >= 10)
43	{
44	  VERIFY( !std::equal(v1.begin(), v1.end(), vref.begin()) );
45	  VERIFY( !std::equal(v2.begin(), v2.end(), vref.begin()) );
46	  VERIFY( !std::equal(v1.begin(), v1.end(), v2.begin()) );
47	}
48
49      for (unsigned ind = 0; ind < size; ++ind)
50	{
51	  auto it1 = std::find(v1.begin(), v1.end(), vref[ind]);
52	  auto it2 = std::find(v2.begin(), v2.end(), vref[ind]);
53	  VERIFY( it1 != v1.end() );
54	  VERIFY( it2 != v2.end() );
55	  v1.erase(it1);
56	  v2.erase(it2);
57	}
58      VERIFY( v1.empty() );
59      VERIFY( v2.empty() );
60    }
61}
62
63int main()
64{
65  test01();
66  return 0;
67}
68