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// Copyright (C) 2013-2022 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/>.
// 25.2.12 [alg.is_permutation] Is permutation
// { dg-do compile { target c++14 } }
#include <algorithm>
#include <testsuite_iterators.h>
using __gnu_test::forward_iterator_wrapper;
struct X { };
bool operator==(const X&, const X) { return true; }
struct Y { };
bool predicate(const Y&, const Y&) { return true; }
bool
test1(forward_iterator_wrapper<X>& x1,
forward_iterator_wrapper<X>& x2)
{
return std::is_permutation(x1, x1, x2, x2);
}
bool
test2(forward_iterator_wrapper<Y>& y1,
forward_iterator_wrapper<Y>& y2)
{
return std::is_permutation(y1, y1, y2, y2, predicate);
}