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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
//
//===----------------------------------------------------------------------===//
// <algorithm>
// template<Iterator Iter1, Iterator Iter2>
// requires HasSwap<Iter1::reference, Iter2::reference>
// void
// iter_swap(Iter1 a, Iter2 b);
#include <algorithm>
#include <cassert>
#include "test_macros.h"
#if TEST_STD_VER > 17
constexpr bool test_swap_constexpr()
{
int i = 1;
int j = 2;
std::iter_swap(&i, &j);
return i == 2 && j == 1;
}
#endif // TEST_STD_VER > 17
int main(int, char**)
{
int i = 1;
int j = 2;
std::iter_swap(&i, &j);
assert(i == 2);
assert(j == 1);
#if TEST_STD_VER > 17
static_assert(test_swap_constexpr());
#endif // TEST_STD_VER > 17
return 0;
}
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