667925d45a
Fixes https://github.com/llvm/llvm-project/issues/10686 Reviewed By: Mordante, ldionne, var-const, #libc Spies: jloser, libcxx-commits, arphaman Differential Revision: https://reviews.llvm.org/D122092
59 lines
1.6 KiB
C++
59 lines
1.6 KiB
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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// test constexpr bool operator[](size_t pos) const;
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#include <bitset>
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#include <cassert>
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#include <cstddef>
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#include <vector>
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#include "../bitset_test_cases.h"
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#include "test_macros.h"
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template <std::size_t N>
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void test_index_const() {
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std::vector<std::bitset<N> > const cases = get_test_cases<N>();
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for (std::size_t c = 0; c != cases.size(); ++c) {
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std::bitset<N> const v = cases[c];
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if (v.size() > 0) {
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assert(v[N/2] == v.test(N/2));
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}
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}
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#if !defined(_LIBCPP_VERSION) || defined(_LIBCPP_ABI_BITSET_VECTOR_BOOL_CONST_SUBSCRIPT_RETURN_BOOL)
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ASSERT_SAME_TYPE(decltype(cases[0][0]), bool);
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#else
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ASSERT_SAME_TYPE(decltype(cases[0][0]), typename std::bitset<N>::const_reference);
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#endif
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}
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int main(int, char**) {
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test_index_const<0>();
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test_index_const<1>();
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test_index_const<31>();
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test_index_const<32>();
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test_index_const<33>();
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test_index_const<63>();
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test_index_const<64>();
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test_index_const<65>();
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test_index_const<1000>();
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std::bitset<1> set_;
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set_[0] = false;
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const auto& set = set_;
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auto b = set[0];
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set_[0] = true;
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#if !defined(_LIBCPP_VERSION) || defined(_LIBCPP_ABI_BITSET_VECTOR_BOOL_CONST_SUBSCRIPT_RETURN_BOOL)
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assert(!b);
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#else
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assert(b);
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#endif
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return 0;
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}
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