| // { dg-options "-std=gnu++11" } |
| |
| // Copyright (C) 2014 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/>. |
| |
| #include <set> |
| #include <stdexcept> |
| |
| struct Comparator |
| { |
| Comparator() : valid(false) { } |
| explicit Comparator(bool) : valid(true) { } |
| |
| bool operator()(int i, int j) const |
| { |
| if (!valid) |
| throw std::logic_error("Comparator is invalid"); |
| return i < j; |
| } |
| |
| private: |
| bool valid; |
| }; |
| |
| int main() |
| { |
| using test_type = std::set<int, Comparator>; |
| |
| Comparator cmp{true}; |
| |
| test_type good{cmp}; |
| |
| test_type s1; |
| s1 = good; // copy-assign |
| s1.insert(1); |
| s1.insert(2); |
| |
| test_type s2; |
| s2 = std::move(good); // move-assign |
| s2.insert(1); |
| s2.insert(2); |
| } |