98d3d5b5da
Reviewed By: #libc, ldionne Spies: mgorny, var-const, ormris, philnik, miscco, hiraditya, steven_wu, jkorous, ldionne, christof, libcxx-commits Differential Revision: https://reviews.llvm.org/D68365
44 lines
893 B
C++
44 lines
893 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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// <vector>
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// flip()
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#include <cassert>
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#include <vector>
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#include "test_macros.h"
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TEST_CONSTEXPR_CXX20 bool test() {
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std::vector<bool> vec;
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typedef std::vector<bool>::reference Ref;
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vec.push_back(true);
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vec.push_back(false);
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Ref ref = vec[0];
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assert(vec[0]);
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assert(!vec[1]);
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ref.flip();
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assert(!vec[0]);
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assert(!vec[1]);
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ref.flip();
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assert(vec[0]);
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assert(!vec[1]);
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return true;
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}
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int main(int, char**) {
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test();
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#if TEST_STD_VER > 17
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static_assert(test());
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#endif
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return 0;
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}
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