1 // Copyright (C) 2014-2016 Free Software Foundation, Inc. 2 // 3 // This file is part of the GNU ISO C++ Library. This library is free 4 // software; you can redistribute it and/or modify it under the 5 // terms of the GNU General Public License as published by the 6 // Free Software Foundation; either version 3, or (at your option) 7 // any later version. 8 9 // This library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU General Public License for more details. 13 14 // You should have received a copy of the GNU General Public License along 15 // with this library; see the file COPYING3. If not see 16 // <http://www.gnu.org/licenses/>. 17 18 // { dg-options "-std=gnu++11" } 19 20 #include <unordered_set> 21 #include <testsuite_hooks.h> 22 test01()23void test01() 24 { 25 bool test __attribute__((unused)) = true; 26 std::unordered_set<int> us1 { 0, 1 }; 27 { 28 std::unordered_set<int> us2(std::move(us1)); 29 30 us1.swap(us2); 31 32 VERIFY( us1.find(0) != us1.end() ); 33 34 us1.insert(2); 35 36 VERIFY( us1.size() == 3 ); 37 38 us2.swap(us1); 39 40 VERIFY( us2.size() == 3 ); 41 VERIFY( us2.find(2) != us2.end() ); 42 43 us1 = { 3, 4, 5 }; 44 45 VERIFY( us1.size() == 3 ); 46 VERIFY( us1.bucket_count() >= 3 ); 47 48 std::unordered_set<int> us3(std::move(us1)); 49 us3 = std::move(us2); 50 51 us1.swap(us2); 52 53 VERIFY( us1.empty() ); 54 VERIFY( us2.empty() ); 55 } 56 57 us1 = { 0, 1 }; 58 VERIFY( us1.size() == 2 ); 59 } 60 main()61int main() 62 { 63 test01(); 64 return 0; 65 } 66