| // Copyright (C) 2018-2023 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/>. |
| |
| // { dg-options "-std=gnu++2a" } |
| // { dg-do run { target c++2a } } |
| |
| #include <set> |
| #include <testsuite_hooks.h> |
| |
| void |
| test01() |
| { |
| std::multiset<int> m; |
| VERIFY( ! m.contains( 0 ) ); |
| VERIFY( ! m.contains( 1 ) ); |
| m.emplace(0); |
| VERIFY( m.contains( 0 ) ); |
| VERIFY( ! m.contains( 1 ) ); |
| m.emplace(0); |
| VERIFY( m.contains( 0 ) ); |
| VERIFY( ! m.contains( 1 ) ); |
| m.emplace(1); |
| VERIFY( m.contains( 0 ) ); |
| VERIFY( m.contains( 1 ) ); |
| } |
| |
| struct Zero { }; |
| bool operator<(Zero, int i) { return 0 < i; } |
| bool operator<(int i, Zero) { return i < 0; } |
| |
| struct One { }; |
| bool operator<(One, int i) { return 1 < i; } |
| bool operator<(int i, One) { return i < 1; } |
| |
| void |
| test02() |
| { |
| std::multiset<int, std::less<>> m; |
| VERIFY( ! m.contains( Zero{} ) ); |
| VERIFY( ! m.contains( One{} ) ); |
| m.emplace(0); |
| VERIFY( m.contains( Zero{} ) ); |
| VERIFY( ! m.contains( One{} ) ); |
| m.emplace(0); |
| VERIFY( m.contains( Zero{} ) ); |
| VERIFY( ! m.contains( One{} ) ); |
| m.emplace(1); |
| VERIFY( m.contains( Zero{} ) ); |
| VERIFY( m.contains( One{} ) ); |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| test02(); |
| } |