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112 lines
2.5 KiB
C++
112 lines
2.5 KiB
C++
// { dg-options "-std=gnu++11" }
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// Copyright (C) 2007-2016 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// NOTE: This makes use of the fact that we know how moveable
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// is implemented on tuple. If the implementation changed
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// this test may begin to fail.
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#include <tuple>
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#include <utility>
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#include <testsuite_hooks.h>
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struct MoveOnly
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{
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explicit MoveOnly (int j) : i(j) { }
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MoveOnly (MoveOnly&& m) : i(m.i) { }
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MoveOnly& operator=(MoveOnly&& m)
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{ i = m.i; return *this; }
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MoveOnly(MoveOnly const&) = delete;
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MoveOnly& operator=(MoveOnly const&) = delete;
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bool operator==(MoveOnly const& m)
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{ return i == m.i; }
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void swap(MoveOnly& m)
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{ std::swap(m.i, i); }
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int i;
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};
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void swap(MoveOnly& m1, MoveOnly& m2)
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{ m1.swap(m2); }
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MoveOnly
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make_move_only (int i)
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{ return MoveOnly(i); }
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void test01()
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{
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bool test __attribute__((unused)) = true;
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std::tuple<> t1, t2;
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std::swap(t1, t2);
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VERIFY( t1 == t2 );
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}
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void test02()
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{
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bool test __attribute__((unused)) = true;
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std::tuple<int> t1(1), t2(2);
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std::swap(t1, t2);
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VERIFY( std::get<0>(t1) == 2 && std::get<0>(t2) == 1 );
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}
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void test03()
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{
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bool test __attribute__((unused)) = true;
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std::tuple<int, float> t1(1, 1.0f), t2(2, 2.0f);
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std::swap(t1, t2);
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VERIFY( std::get<0>(t1) == 2 && std::get<0>(t2) == 1 );
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VERIFY( std::get<1>(t1) == 2.0f && std::get<1>(t2) == 1.0f );
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}
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void test04()
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{
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bool test __attribute__((unused)) = true;
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std::tuple<int, float, MoveOnly>
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t1(1, 1.0f, make_move_only(1)),
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t2(2, 2.0f, make_move_only(2));
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std::swap(t1, t2);
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VERIFY( std::get<0>(t1) == 2 && std::get<0>(t2) == 1 );
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VERIFY( std::get<1>(t1) == 2.0f && std::get<1>(t2) == 1.0f );
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VERIFY( std::get<2>(t1) == make_move_only(2)
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&& std::get<2>(t2) == make_move_only(1) );
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}
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int main()
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{
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test01();
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test02();
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test03();
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test04();
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return 0;
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}
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