| // { dg-do run { target c++11 } } |
| |
| // Copyright (C) 2008-2023 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/>. |
| |
| // C++11 23.3.4.6 Operations [forwardlist.ops] |
| |
| #include <forward_list> |
| #include <testsuite_hooks.h> |
| |
| // Comparison functor. |
| template<typename Num> |
| class Comp |
| { |
| public: |
| Comp(const Num & num) |
| { |
| n = num; |
| } |
| bool operator()(const Num i, const Num j) |
| { |
| return (n * i) < (n * j); |
| } |
| private: |
| Num n; |
| }; |
| |
| // This test verifies the following: |
| // sort |
| void |
| test01() |
| { |
| const unsigned int n = 13; |
| int order[][n] = { |
| { 0,1,2,3,4,5,6,7,8,9,10,11,12 }, |
| { 6,2,8,4,11,1,12,7,3,9,5,0,10 }, |
| { 12,11,10,9,8,7,6,5,4,3,2,1,0 }, |
| }; |
| std::forward_list<int> sorted(order[0], order[0] + n); |
| |
| for (unsigned int i = 0; i < sizeof(order)/sizeof(*order); ++i) |
| { |
| std::forward_list<int> head(order[i], order[i] + n); |
| |
| head.sort(); |
| |
| VERIFY(head == sorted); |
| } |
| |
| std::forward_list<int> reversed(order[2], order[2] + n); |
| for (unsigned int i = 0; i < sizeof(order)/sizeof(*order); ++i) |
| { |
| std::forward_list<int> head(order[i], order[i] + n); |
| |
| Comp<int> comp(-1); |
| head.sort( comp ); |
| |
| VERIFY(head == reversed); |
| } |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| return 0; |
| } |