| |
| // 2011-01-13 Paolo Carlini <paolo.carlini@oracle.com> |
| // |
| // Copyright (C) 2011-2023 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++11 } } |
| |
| #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); |
| } |
| |
| bool |
| test2(forward_iterator_wrapper<Y>& y1, |
| forward_iterator_wrapper<Y>& y2) |
| { |
| return std::is_permutation(y1, y1, y2, predicate); |
| } |
