# define _LIBCPP_ABI_DO_NOT_EXPORT_BASIC_STRING_COMMON
// Remove vector base class
# define _LIBCPP_ABI_DO_NOT_EXPORT_VECTOR_BASE_COMMON
+// According to the Standard, `bitset::operator[] const` returns bool
+# define _LIBCPP_ABI_BITSET_VECTOR_BOOL_CONST_SUBSCRIPT_RETURN_BOOL
#elif _LIBCPP_ABI_VERSION == 1
# if !defined(_LIBCPP_OBJECT_FORMAT_COFF)
// Enable compiling copies of now inline methods into the dylib to support
bitset& flip(size_t __pos);
// element access:
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
- const_reference operator[](size_t __p) const {return base::__make_ref(__p);}
- _LIBCPP_INLINE_VISIBILITY reference operator[](size_t __p) {return base::__make_ref(__p);}
+#ifdef _LIBCPP_ABI_BITSET_VECTOR_BOOL_CONST_SUBSCRIPT_RETURN_BOOL
+ _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool operator[](size_t __p) const {return base::__make_ref(__p);}
+#else
+ _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR const_reference operator[](size_t __p) const {return base::__make_ref(__p);}
+#endif
+ _LIBCPP_HIDE_FROM_ABI reference operator[](size_t __p) {return base::__make_ref(__p);}
_LIBCPP_INLINE_VISIBILITY
unsigned long to_ulong() const;
_LIBCPP_INLINE_VISIBILITY
__compressed_pair<size_type, __storage_allocator> __cap_alloc_;
public:
typedef __bit_reference<vector> reference;
+#ifdef _LIBCPP_ABI_BITSET_VECTOR_BOOL_CONST_SUBSCRIPT_RETURN_BOOL
+ using const_reference = bool;
+#else
typedef __bit_const_reference<vector> const_reference;
+#endif
private:
_LIBCPP_INLINE_VISIBILITY
size_type& __cap() _NOEXCEPT
iterator insert(const_iterator __position, const value_type& __x);
iterator insert(const_iterator __position, size_type __n, const value_type& __x);
- iterator insert(const_iterator __position, size_type __n, const_reference __x);
template <class _InputIterator>
typename enable_if
<
reference __make_ref(size_type __pos) _NOEXCEPT
{return reference(__begin_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);}
_LIBCPP_INLINE_VISIBILITY
- const_reference __make_ref(size_type __pos) const _NOEXCEPT
- {return const_reference(__begin_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);}
+ const_reference __make_ref(size_type __pos) const _NOEXCEPT {
+ return __bit_const_reference<vector>(__begin_ + __pos / __bits_per_word,
+ __storage_type(1) << __pos % __bits_per_word);
+ }
_LIBCPP_INLINE_VISIBILITY
iterator __make_iter(size_type __pos) _NOEXCEPT
{return iterator(__begin_ + __pos / __bits_per_word, static_cast<unsigned>(__pos % __bits_per_word));}
--- /dev/null
+//===----------------------------------------------------------------------===//
+//
+// 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"
+
+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();
+
+ return 0;
+}
assert(r == false);
assert(v1.test(N/2) == false);
}
+ ASSERT_SAME_TYPE(decltype(v1[0]), typename std::bitset<N>::reference);
}
}
test_index<65>();
test_index<1000>();
+ std::bitset<1> set;
+ set[0] = false;
+ auto b = set[0];
+ set[0] = true;
+ assert(b);
+
return 0;
}
assert(v[N/2] == v.test(N/2));
}
}
+#if !defined(_LIBCPP_VERSION) || defined(_LIBCPP_ABI_BITSET_VECTOR_BOOL_CONST_SUBSCRIPT_RETURN_BOOL)
+ ASSERT_SAME_TYPE(decltype(cases[0][0]), bool);
+#else
+ ASSERT_SAME_TYPE(decltype(cases[0][0]), typename std::bitset<N>::const_reference);
+#endif
}
int main(int, char**) {
test_index_const<65>();
test_index_const<1000>();
+ std::bitset<1> set_;
+ set_[0] = false;
+ const auto& set = set_;
+ auto b = set[0];
+ set_[0] = true;
+#if !defined(_LIBCPP_VERSION) || defined(_LIBCPP_ABI_BITSET_VECTOR_BOOL_CONST_SUBSCRIPT_RETURN_BOOL)
+ assert(!b);
+#else
+ assert(b);
+#endif
+
return 0;
}