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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
//
//===----------------------------------------------------------------------===//
// <vector>
#include <cassert>
#include <vector>
#include "test_macros.h"
TEST_CONSTEXPR_CXX20 bool test() {
using CRefT = std::vector<bool>::const_reference;
#if !defined(_LIBCPP_VERSION) || defined(_LIBCPP_ABI_BITSET_VECTOR_BOOL_CONST_SUBSCRIPT_RETURN_BOOL)
ASSERT_SAME_TYPE(CRefT, bool);
#else
ASSERT_SAME_TYPE(CRefT, std::__bit_const_reference<std::vector<bool> >);
std::vector<bool> vec;
vec.push_back(true);
CRefT ref = vec[0];
assert(ref);
vec[0] = false;
assert(!ref);
#endif
return true;
}
int main(int, char**) {
test();
#if TEST_STD_VER > 17
static_assert(test());
#endif
return 0;
}
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