| // Copyright (C) 2013-2021 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-do run { target c++11 } } |
| // { dg-require-debug-mode "" } |
| |
| #include <unordered_set> |
| #include <testsuite_hooks.h> |
| |
| void test02() |
| { |
| using namespace __gnu_debug; |
| |
| std::unordered_set<int> u = { 0, 1, 2 }; |
| |
| VERIFY( !__check_singular(u.end()) ); |
| auto it = u.end(); |
| VERIFY( !__check_singular(it) ); |
| |
| VERIFY( !__check_singular(u.begin()) ); |
| it = u.begin(); |
| VERIFY( !__check_singular(it) ); |
| |
| u.clear(); |
| |
| VERIFY( it._M_singular() ); |
| VERIFY( __check_singular(it) ); |
| |
| it = u.end(); |
| VERIFY( !it._M_singular() ); |
| VERIFY( !__check_singular(it) ); |
| |
| u = { 0, 1, 2 }; |
| |
| auto bucket = u.bucket(0); |
| VERIFY( !__check_singular(u.begin(bucket)) ); |
| auto lit = u.begin(bucket); |
| VERIFY( !__check_singular(lit) ); |
| |
| VERIFY( !__check_singular(u.end(bucket)) ); |
| |
| u.clear(); |
| VERIFY( __check_singular(lit) ); |
| } |
| |
| int main() |
| { |
| test02(); |
| return 0; |
| } |