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// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 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/>.

// 26.4.4 [lib.adjacent.difference]

#include <algorithm>

#include <numeric>

#include <testsuite_hooks.h>

int A[] = {1, 4, 9, 16, 25, 36, 49, 64, 81, 100};

int B[] = {1, 3, 5, 7, 9, 11, 13, 15, 17, 19};

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

void

test01()

{

  bool test __attribute__((unused)) = true;

  int D[N];

  std::adjacent_difference(A, A + N, D);

  VERIFY( std::equal(D, D + N, B) );

}

int

main()

{

  test01();

  return 0;

}