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// 2003-10-14  Paolo Carlini  <pcarlini@unitus.it>

// Copyright (C) 2003, 2004, 2005, 2009 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

// terms of the GNU General Public License as published by the

// Free Software Foundation; either version 3, or (at your option)

// any later version.

// This library is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along

// with this library; see the file COPYING3.  If not see

// <http://www.gnu.org/licenses/>.

// 25.2.8 [lib.alg.unique] Unique

#include <list>

#include <algorithm>

#include <functional>

#include <testsuite_hooks.h>

const int T1[] = {1, 4, 4, 6, 1, 2, 2, 3, 1, 6, 6, 6, 5, 7, 5, 4, 4};

const int T2[] = {1, 1, 1, 2, 2, 1, 1, 7, 6, 6, 7, 8, 8, 8, 8, 9, 9};

const int N = sizeof(T1) / sizeof(int);

const int A1[] = {1, 4, 6, 1, 2, 3, 1, 6, 5, 7, 5, 4};

const int A2[] = {1, 4, 4, 6, 6, 6, 6, 7};

const int A3[] = {1, 1, 1};

const int B1[] = {1, 2, 1, 7, 6, 7, 8, 9};

const int B2[] = {1, 1, 1, 2, 2, 7, 7, 8, 8, 8, 8, 9, 9};

const int B3[] = {9, 9, 8, 8, 8, 8, 7, 6, 6, 1, 1, 1, 1, 1};

void test01()

{

  bool test __attribute__((unused)) = true;

  using namespace std;

  list<int>::iterator pos;

  list<int> coll(T1, T1 + N);

  pos = unique(coll.begin(), coll.end());

  VERIFY( equal(coll.begin(), pos, A1) );

  list<int> coll2(T2, T2 + N);

  pos = unique(coll2.begin(), coll2.end());

  VERIFY( equal(coll2.begin(), pos, B1) );

}

void test02()

{

  bool test __attribute__((unused)) = true;

  using namespace std;

  list<int>::iterator pos;

  list<int> coll(T1, T1 + N);

  pos = unique(coll.begin(), coll.end(), greater<int>());

  VERIFY( equal(coll.begin(), pos, A2) );

  list<int> coll2(T2, T2 + N);

  pos = unique(coll2.begin(), coll2.end(), greater<int>());

  VERIFY( equal(coll2.begin(), pos, B2) );

}

void test03()

{

  bool test __attribute__((unused)) = true;

  using namespace std;

  list<int>::iterator pos;

  list<int> coll(T1, T1 + N);

  pos = unique(coll.begin(), coll.end(), less<int>());

  VERIFY( equal(coll.begin(), pos, A3) );

  list<int> coll2(T2, T2 + N);

  reverse(coll2.begin(), coll2.end());

  pos = unique(coll2.begin(), coll2.end(), less<int>());

  VERIFY( equal(coll2.begin(), pos, B3) );

}

int main()

{

  test01();

  test02();

  test03();

  return 0;

}