29 #ifndef _GLIBCXX_DEBUG_ARRAY
30 #define _GLIBCXX_DEBUG_ARRAY 1
32 #pragma GCC system_header
39 namespace std _GLIBCXX_VISIBILITY(default)
43 template<
typename _Tp, std::
size_t _Nm>
46 typedef _Tp value_type;
47 typedef value_type* pointer;
48 typedef const value_type* const_pointer;
49 typedef value_type& reference;
50 typedef const value_type& const_reference;
51 typedef value_type* iterator;
52 typedef const value_type* const_iterator;
53 typedef std::size_t size_type;
54 typedef std::ptrdiff_t difference_type;
59 typedef _GLIBCXX_STD_C::__array_traits<_Tp, _Nm> _AT_Type;
60 typename _AT_Type::_Type _M_elems;
62 template<std::
size_t _Size>
63 struct _Array_check_subscript
65 std::size_t size() {
return _Size; }
67 _Array_check_subscript(std::size_t __index)
68 { __glibcxx_check_subscript(__index); }
71 template<std::
size_t _Size>
72 struct _Array_check_nonempty
74 _GLIBCXX_NODISCARD
bool empty() {
return _Size == 0; }
76 _Array_check_nonempty()
77 { __glibcxx_check_nonempty(); }
83 _GLIBCXX20_CONSTEXPR
void
84 fill(
const value_type& __u)
87 _GLIBCXX20_CONSTEXPR
void
89 noexcept(_AT_Type::_Is_nothrow_swappable::value)
93 _GLIBCXX17_CONSTEXPR iterator
95 {
return iterator(data()); }
97 _GLIBCXX17_CONSTEXPR const_iterator
98 begin() const noexcept
99 {
return const_iterator(data()); }
101 _GLIBCXX17_CONSTEXPR iterator
103 {
return iterator(data() + _Nm); }
105 _GLIBCXX17_CONSTEXPR const_iterator
107 {
return const_iterator(data() + _Nm); }
109 _GLIBCXX17_CONSTEXPR reverse_iterator
111 {
return reverse_iterator(
end()); }
113 _GLIBCXX17_CONSTEXPR const_reverse_iterator
115 {
return const_reverse_iterator(
end()); }
117 _GLIBCXX17_CONSTEXPR reverse_iterator
119 {
return reverse_iterator(
begin()); }
121 _GLIBCXX17_CONSTEXPR const_reverse_iterator
122 rend() const noexcept
123 {
return const_reverse_iterator(
begin()); }
125 _GLIBCXX17_CONSTEXPR const_iterator
127 {
return const_iterator(data()); }
129 _GLIBCXX17_CONSTEXPR const_iterator
130 cend() const noexcept
131 {
return const_iterator(data() + _Nm); }
133 _GLIBCXX17_CONSTEXPR const_reverse_iterator
135 {
return const_reverse_iterator(
end()); }
137 _GLIBCXX17_CONSTEXPR const_reverse_iterator
138 crend() const noexcept
139 {
return const_reverse_iterator(
begin()); }
143 size() const noexcept {
return _Nm; }
146 max_size() const noexcept {
return _Nm; }
148 _GLIBCXX_NODISCARD constexpr
bool
149 empty() const noexcept {
return size() == 0; }
152 _GLIBCXX17_CONSTEXPR reference
153 operator[](size_type __n) noexcept
155 __glibcxx_check_subscript(__n);
156 return _AT_Type::_S_ref(_M_elems, __n);
159 constexpr const_reference
160 operator[](size_type __n)
const noexcept
162 return __n < _Nm ? _AT_Type::_S_ref(_M_elems, __n)
163 : (_GLIBCXX_THROW_OR_ABORT(_Array_check_subscript<_Nm>(__n)),
164 _AT_Type::_S_ref(_M_elems, 0));
167 _GLIBCXX17_CONSTEXPR reference
171 std::__throw_out_of_range_fmt(__N(
"array::at: __n (which is %zu) "
172 ">= _Nm (which is %zu)"),
174 return _AT_Type::_S_ref(_M_elems, __n);
177 constexpr const_reference
178 at(size_type __n)
const
182 return __n < _Nm ? _AT_Type::_S_ref(_M_elems, __n)
183 : (
std::__throw_out_of_range_fmt(__N(
"array::at: __n (which is %zu) "
184 ">= _Nm (which is %zu)"),
186 _AT_Type::_S_ref(_M_elems, 0));
189 _GLIBCXX17_CONSTEXPR reference
192 __glibcxx_check_nonempty();
196 constexpr const_reference
197 front() const noexcept
199 return _Nm ? _AT_Type::_S_ref(_M_elems, 0)
200 : (_GLIBCXX_THROW_OR_ABORT(_Array_check_nonempty<_Nm>()),
201 _AT_Type::_S_ref(_M_elems, 0));
204 _GLIBCXX17_CONSTEXPR reference
207 __glibcxx_check_nonempty();
208 return _Nm ? *(
end() - 1) : *
end();
211 constexpr const_reference
212 back() const noexcept
214 return _Nm ? _AT_Type::_S_ref(_M_elems, _Nm - 1)
215 : (_GLIBCXX_THROW_OR_ABORT(_Array_check_nonempty<_Nm>()),
216 _AT_Type::_S_ref(_M_elems, 0));
219 _GLIBCXX17_CONSTEXPR pointer
221 {
return _AT_Type::_S_ptr(_M_elems); }
223 _GLIBCXX17_CONSTEXPR const_pointer
224 data() const noexcept
225 {
return _AT_Type::_S_ptr(_M_elems); }
228 #if __cpp_deduction_guides >= 201606
229 template<
typename _Tp,
typename... _Up>
236 template<
typename _Tp, std::
size_t _Nm>
239 operator==(
const array<_Tp, _Nm>& __one,
const array<_Tp, _Nm>& __two)
240 {
return std::equal(__one.begin(), __one.end(), __two.begin()); }
242 template<
typename _Tp, std::
size_t _Nm>
245 operator!=(
const array<_Tp, _Nm>& __one,
const array<_Tp, _Nm>& __two)
246 {
return !(__one == __two); }
248 template<
typename _Tp, std::
size_t _Nm>
251 operator<(
const array<_Tp, _Nm>& __a,
const array<_Tp, _Nm>& __b)
254 __b.begin(), __b.end());
257 template<
typename _Tp, std::
size_t _Nm>
260 operator>(
const array<_Tp, _Nm>& __one,
const array<_Tp, _Nm>& __two)
261 {
return __two < __one; }
263 template<
typename _Tp, std::
size_t _Nm>
266 operator<=(
const array<_Tp, _Nm>& __one,
const array<_Tp, _Nm>& __two)
267 {
return !(__one > __two); }
269 template<
typename _Tp, std::
size_t _Nm>
272 operator>=(
const array<_Tp, _Nm>& __one,
const array<_Tp, _Nm>& __two)
273 {
return !(__one < __two); }
277 #if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11
278 template<
typename _Tp,
size_t _Nm>
280 !_GLIBCXX_STD_C::__array_traits<_Tp, _Nm>::_Is_swappable::value>::type
281 swap(array<_Tp, _Nm>&, array<_Tp, _Nm>&) =
delete;
284 template<
typename _Tp, std::
size_t _Nm>
287 swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two)
288 noexcept(noexcept(__one.swap(__two)))
289 { __one.swap(__two); }
291 template<std::
size_t _Int,
typename _Tp, std::
size_t _Nm>
293 get(array<_Tp, _Nm>& __arr) noexcept
295 static_assert(_Int < _Nm,
"index is out of bounds");
296 return _GLIBCXX_STD_C::__array_traits<_Tp, _Nm>::
297 _S_ref(__arr._M_elems, _Int);
300 template<std::
size_t _Int,
typename _Tp, std::
size_t _Nm>
302 get(array<_Tp, _Nm>&& __arr) noexcept
304 static_assert(_Int < _Nm,
"index is out of bounds");
305 return std::move(__debug::get<_Int>(__arr));
308 template<std::
size_t _Int,
typename _Tp, std::
size_t _Nm>
310 get(
const array<_Tp, _Nm>& __arr) noexcept
312 static_assert(_Int < _Nm,
"index is out of bounds");
313 return _GLIBCXX_STD_C::__array_traits<_Tp, _Nm>::
314 _S_ref(__arr._M_elems, _Int);
317 template<std::
size_t _Int,
typename _Tp, std::
size_t _Nm>
318 constexpr
const _Tp&&
319 get(
const array<_Tp, _Nm>&& __arr) noexcept
321 static_assert(_Int < _Nm,
"index is out of bounds");
322 return std::move(__debug::get<_Int>(__arr));
325 #if __cplusplus > 201703L
326 #define __cpp_lib_to_array 201907L
328 template<
bool _Move =
false,
typename _Tp,
size_t... _Idx>
329 constexpr array<remove_cv_t<_Tp>,
sizeof...(_Idx)>
330 __to_array(_Tp (&__a)[
sizeof...(_Idx)], index_sequence<_Idx...>)
335 return {{__a[_Idx]...}};
338 template<
typename _Tp,
size_t _Nm>
339 constexpr array<remove_cv_t<_Tp>, _Nm>
341 noexcept(is_nothrow_constructible_v<_Tp, _Tp&>)
343 static_assert(!is_array_v<_Tp>);
344 static_assert(is_constructible_v<_Tp, _Tp&>);
345 if constexpr (is_constructible_v<_Tp, _Tp&>)
346 return __debug::__to_array(__a, make_index_sequence<_Nm>{});
347 __builtin_unreachable();
350 template<
typename _Tp,
size_t _Nm>
351 constexpr array<remove_cv_t<_Tp>, _Nm>
353 noexcept(is_nothrow_move_constructible_v<_Tp>)
355 static_assert(!is_array_v<_Tp>);
356 static_assert(is_move_constructible_v<_Tp>);
357 if constexpr (is_move_constructible_v<_Tp>)
358 return __debug::__to_array<1>(__a, make_index_sequence<_Nm>{});
359 __builtin_unreachable();
365 _GLIBCXX_BEGIN_NAMESPACE_VERSION
369 template<
typename _Tp, std::
size_t _Nm>
374 template<std::
size_t _Int,
typename _Tp, std::
size_t _Nm>
377 static_assert(_Int < _Nm,
"index is out of bounds");
381 template<
typename _Tp, std::
size_t _Nm>
382 struct __is_tuple_like_impl<
std::__debug::array<_Tp, _Nm>> :
true_type
385 _GLIBCXX_END_NAMESPACE_VERSION
388 #endif // _GLIBCXX_DEBUG_ARRAY