Mercurial > hg > CbC > CbC_gcc
view libstdc++-v3/testsuite/20_util/tuple/swap.cc @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 84e7813d76e9 |
children |
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// { dg-do run { target c++11 } } // Copyright (C) 2007-2020 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/>. // NOTE: This makes use of the fact that we know how moveable // is implemented on tuple. If the implementation changed // this test may begin to fail. #include <tuple> #include <utility> #include <testsuite_hooks.h> struct MoveOnly { explicit MoveOnly (int j) : i(j) { } MoveOnly (MoveOnly&& m) : i(m.i) { } MoveOnly& operator=(MoveOnly&& m) { i = m.i; return *this; } MoveOnly(MoveOnly const&) = delete; MoveOnly& operator=(MoveOnly const&) = delete; bool operator==(MoveOnly const& m) { return i == m.i; } void swap(MoveOnly& m) { std::swap(m.i, i); } int i; }; void swap(MoveOnly& m1, MoveOnly& m2) { m1.swap(m2); } MoveOnly make_move_only (int i) { return MoveOnly(i); } void test01() { std::tuple<> t1, t2; std::swap(t1, t2); VERIFY( t1 == t2 ); } void test02() { std::tuple<int> t1(1), t2(2); std::swap(t1, t2); VERIFY( std::get<0>(t1) == 2 && std::get<0>(t2) == 1 ); } void test03() { std::tuple<int, float> t1(1, 1.0f), t2(2, 2.0f); std::swap(t1, t2); VERIFY( std::get<0>(t1) == 2 && std::get<0>(t2) == 1 ); VERIFY( std::get<1>(t1) == 2.0f && std::get<1>(t2) == 1.0f ); } void test04() { std::tuple<int, float, MoveOnly> t1(1, 1.0f, make_move_only(1)), t2(2, 2.0f, make_move_only(2)); std::swap(t1, t2); VERIFY( std::get<0>(t1) == 2 && std::get<0>(t2) == 1 ); VERIFY( std::get<1>(t1) == 2.0f && std::get<1>(t2) == 1.0f ); VERIFY( std::get<2>(t1) == make_move_only(2) && std::get<2>(t2) == make_move_only(1) ); } int main() { test01(); test02(); test03(); test04(); return 0; }