45 lines
1009 B
C++
45 lines
1009 B
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <algorithm>
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// template<Iterator Iter1, Iterator Iter2>
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// requires HasSwap<Iter1::reference, Iter2::reference>
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// void
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// iter_swap(Iter1 a, Iter2 b);
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#include <algorithm>
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#include <cassert>
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#include "test_macros.h"
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#if TEST_STD_VER > 17
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constexpr bool test_swap_constexpr()
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{
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int i = 1;
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int j = 2;
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std::iter_swap(&i, &j);
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return i == 2 && j == 1;
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}
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#endif // TEST_STD_VER > 17
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int main(int, char**)
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{
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int i = 1;
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int j = 2;
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std::iter_swap(&i, &j);
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assert(i == 2);
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assert(j == 1);
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#if TEST_STD_VER > 17
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static_assert(test_swap_constexpr());
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#endif // TEST_STD_VER > 17
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return 0;
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}
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