| // { dg-options "-std=gnu++0x" } |
| |
| // Copyright (C) 2008-2013 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/>. |
| |
| // 23.2.3.n forward_list xxx [lib.forward_list.xxx] |
| |
| #include <forward_list> |
| #include <testsuite_hooks.h> |
| |
| // This test verifies the following: |
| // cbegin |
| // erase_after one iterator |
| // pos is useable and points to current element |
| void |
| test01() |
| { |
| bool test __attribute__((unused)) = true; |
| |
| std::forward_list<int> fl({0, 1, 2, 3, 4, 5, 6, 7, 8, 9}); |
| |
| std::forward_list<int>::const_iterator pos = fl.cbegin(); |
| ++pos; |
| VERIFY( *pos == 1 ); |
| |
| std::forward_list<int>::iterator pos2 = fl.erase_after(pos); |
| |
| VERIFY( *pos == 1 ); |
| ++pos; |
| VERIFY( *pos == 3 ); |
| VERIFY( pos == pos2 ); |
| } |
| |
| // This test verifies the following: |
| // cbegin |
| // erase_after iterator range |
| // pos is useable and points to current element |
| void |
| test02() |
| { |
| bool test __attribute__((unused)) = true; |
| |
| std::forward_list<int> fl({0, 1, 2, 3, 4, 5, 6, 7, 8, 9}); |
| |
| std::forward_list<int>::const_iterator pos = fl.cbegin(); |
| ++pos; |
| VERIFY( *pos == 1 ); |
| |
| std::forward_list<int>::iterator stop = fl.begin(); |
| ++stop; |
| ++stop; |
| ++stop; |
| ++stop; |
| VERIFY( *stop == 4 ); |
| |
| std::forward_list<int>::iterator pos2 = fl.erase_after(pos, stop); |
| |
| VERIFY( pos2 == stop ); |
| VERIFY( *pos == 1 ); |
| ++pos; |
| VERIFY( *pos == 4 ); |
| VERIFY( std::distance(fl.begin(), fl.end()) == 8 ); |
| |
| std::forward_list<int>::iterator pos3 |
| = fl.erase_after(pos, fl.end()); |
| VERIFY( pos3 == fl.end() ); |
| VERIFY( ++pos == fl.end() ); |
| VERIFY( std::distance(fl.begin(), fl.end()) == 3 ); |
| |
| std::forward_list<int>::iterator pos4 |
| = fl.erase_after(fl.before_begin(), pos); |
| VERIFY( pos4 == pos ); |
| VERIFY( std::distance(fl.begin(), fl.end()) == 0 ); |
| VERIFY( fl.empty() ); |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| test02(); |
| return 0; |
| } |