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46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
// Copyright (C) 2013-2019 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// 25.2.12 [alg.is_permutation] Is permutation
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// { dg-do compile { target c++14 } }
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#include <algorithm>
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#include <testsuite_iterators.h>
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using __gnu_test::forward_iterator_wrapper;
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struct X { };
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bool operator==(const X&, const X) { return true; }
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struct Y { };
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bool predicate(const Y&, const Y&) { return true; }
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bool
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test1(forward_iterator_wrapper<X>& x1,
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forward_iterator_wrapper<X>& x2)
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{
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return std::is_permutation(x1, x1, x2, x2);
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}
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bool
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test2(forward_iterator_wrapper<Y>& y1,
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forward_iterator_wrapper<Y>& y2)
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{
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return std::is_permutation(y1, y1, y2, y2, predicate);
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}
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