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Diffstat (limited to 'libstdc++-v3/testsuite/23_containers/forward_list/debug/swap.cc')
-rw-r--r-- | libstdc++-v3/testsuite/23_containers/forward_list/debug/swap.cc | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/23_containers/forward_list/debug/swap.cc b/libstdc++-v3/testsuite/23_containers/forward_list/debug/swap.cc new file mode 100644 index 00000000000..0105791bedc --- /dev/null +++ b/libstdc++-v3/testsuite/23_containers/forward_list/debug/swap.cc @@ -0,0 +1,83 @@ +// { dg-options "-std=gnu++0x" } + +// Copyright (C) 2010 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 Pred 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/>. + +// Check that iterators ownership is correctly manage on swap. +#include <vector> +#include <forward_list> +#include <iostream> +#include <testsuite_hooks.h> + +void +test01() +{ + bool test __attribute__((unused)) = true; + std::forward_list<int> fl1{1, 3, 5}; + std::forward_list<int> fl2{2, 4, 6}; + + std::vector<std::forward_list<int>::iterator> fl1_its; + fl1_its.push_back(fl1.before_begin()); + for (std::forward_list<int>::iterator it = fl1.begin(); + it != fl1.end(); ++it) + { + fl1_its.push_back(it); + } + fl1_its.push_back(fl1.end()); + + std::vector<std::forward_list<int>::iterator> fl2_its; + fl2_its.push_back(fl2.before_begin()); + for (std::forward_list<int>::iterator it = fl2.begin(); + it != fl2.end(); ++it) + { + fl2_its.push_back(it); + } + fl2_its.push_back(fl2.end()); + + fl1.swap(fl2); + + auto fit = fl1.before_begin(); + // before-begin iterator is not transfered: + // TODO: Validate with LWG group how before begin should be + // treated. +#if !_GLIBCXX_DEBUG + VERIFY( fit == fl1_its[0] ); +#endif + // All others are, even paste-the-end one: + for (size_t i = 1; i != fl2_its.size(); ++i) + { + VERIFY( ++fit == fl2_its[i] ); + } + + fit = fl2.before_begin(); + // TODO: Validate with LWG group how before begin should be + // treated. +#if !_GLIBCXX_DEBUG + VERIFY( fit == fl2_its[0] ); +#endif + for (size_t i = 1; i != fl1_its.size(); ++i) + { + VERIFY( ++fit == fl1_its[i] ); + } +} + +int +main() +{ + test01(); + return 0; +} |