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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <tuple>
// template <class... Types> class tuple;
// void swap(tuple& rhs);
// UNSUPPORTED: c++03
#include <tuple>
#include <cassert>
#include "test_macros.h"
#include "MoveOnly.h"
TEST_CONSTEXPR_CXX20
bool test()
{
{
typedef std::tuple<> T;
T t0;
T t1;
t0.swap(t1);
}
{
typedef std::tuple<MoveOnly> T;
T t0(MoveOnly(0));
T t1(MoveOnly(1));
t0.swap(t1);
assert(std::get<0>(t0) == 1);
assert(std::get<0>(t1) == 0);
}
{
typedef std::tuple<MoveOnly, MoveOnly> T;
T t0(MoveOnly(0), MoveOnly(1));
T t1(MoveOnly(2), MoveOnly(3));
t0.swap(t1);
assert(std::get<0>(t0) == 2);
assert(std::get<1>(t0) == 3);
assert(std::get<0>(t1) == 0);
assert(std::get<1>(t1) == 1);
}
{
typedef std::tuple<MoveOnly, MoveOnly, MoveOnly> T;
T t0(MoveOnly(0), MoveOnly(1), MoveOnly(2));
T t1(MoveOnly(3), MoveOnly(4), MoveOnly(5));
t0.swap(t1);
assert(std::get<0>(t0) == 3);
assert(std::get<1>(t0) == 4);
assert(std::get<2>(t0) == 5);
assert(std::get<0>(t1) == 0);
assert(std::get<1>(t1) == 1);
assert(std::get<2>(t1) == 2);
}
return true;
}
int main(int, char**)
{
test();
#if TEST_STD_VER > 17
static_assert(test());
#endif
return 0;
}
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