29#ifndef _GLIBCXX_DEBUG_FORWARD_LIST
30#define _GLIBCXX_DEBUG_FORWARD_LIST 1
32#pragma GCC system_header
35namespace std _GLIBCXX_VISIBILITY(default) {
namespace __debug {
36 template<
typename _Tp,
typename _Allocator>
class forward_list;
45#define __glibcxx_check_valid_fl_range(_First,_Last,_Dist) \
46_GLIBCXX_DEBUG_VERIFY(_First._M_valid_range(_Last, _Dist, false), \
47 _M_message(__gnu_debug::__msg_valid_range) \
48 ._M_iterator(_First, #_First) \
49 ._M_iterator(_Last, #_Last))
55 template<
typename _SafeSequence>
61 {
return *
static_cast<_SafeSequence*
>(
this); }
75 using _Base_const_iterator = __decltype(_M_this()._M_base().
cend());
78 return __it != _M_this()._M_base().cbefore_begin()
79 && __it != _M_this()._M_base().cend(); });
85 template<
typename _SafeSequence>
93 using const_iterator =
typename _SafeSequence::const_iterator;
96 _SafeSequence& __rseq =
static_cast<_SafeSequence&
>(__rhs);
102 const_iterator* __victim =
103 static_cast<const_iterator*
>(__victim_base);
105 if (__victim->base() == __rseq._M_base().cbefore_begin())
108 if (__lhs_iterators == __victim_base)
109 __lhs_iterators = __victim_base->
_M_next;
112 __victim_base->
_M_next = __bbegin_its;
113 __bbegin_its->
_M_prior = __victim_base;
116 __last_bbegin = __victim_base;
117 __bbegin_its = __victim_base;
127 __rhs_iterators->
_M_prior = __last_bbegin;
128 __last_bbegin->
_M_next = __rhs_iterators;
130 __rhs_iterators = __bbegin_its;
134 template<
typename _SafeSequence>
136 _Safe_forward_list<_SafeSequence>::
137 _M_swap_single(_Safe_sequence_base& __other)
noexcept
139 std::swap(_M_this()._M_iterators, __other._M_iterators);
140 std::swap(_M_this()._M_const_iterators, __other._M_const_iterators);
143 _Safe_iterator_base* __this_its = _M_this()._M_iterators;
144 _M_swap_aux(__other, __other._M_iterators,
145 _M_this(), _M_this()._M_iterators);
146 _Safe_iterator_base* __this_const_its = _M_this()._M_const_iterators;
147 _M_swap_aux(__other, __other._M_const_iterators,
148 _M_this(), _M_this()._M_const_iterators);
149 _M_swap_aux(_M_this(), __this_its,
150 __other, __other._M_iterators);
151 _M_swap_aux(_M_this(), __this_const_its,
152 __other, __other._M_const_iterators);
157 template<
typename _SafeSequence>
159 _Safe_forward_list<_SafeSequence>::
160 _M_swap(_Safe_sequence_base& __other)
noexcept
164 __mutex *__this_mutex = &_M_this()._M_get_mutex();
165 __mutex *__other_mutex =
166 &
static_cast<_SafeSequence&
>(__other)._M_get_mutex();
167 if (__this_mutex == __other_mutex)
170 _M_swap_single(__other);
175 ? *__this_mutex : *__other_mutex);
177 ? *__other_mutex : *__this_mutex);
178 _M_swap_single(__other);
183namespace std _GLIBCXX_VISIBILITY(default)
188 template<
typename _Tp,
typename _Alloc = std::allocator<_Tp> >
191 forward_list<_Tp, _Alloc>, _Alloc, __gnu_debug::_Safe_forward_list>,
192 public _GLIBCXX_STD_C::forward_list<_Tp, _Alloc>
194 typedef _GLIBCXX_STD_C::forward_list<_Tp, _Alloc>
_Base;
201 template<
typename _ItT,
typename _SeqT,
typename _CatT>
202 friend class ::__gnu_debug::_Safe_iterator;
205 typedef typename _Base::reference reference;
206 typedef typename _Base::const_reference const_reference;
213 typedef typename _Base::size_type size_type;
214 typedef typename _Base::difference_type difference_type;
216 typedef _Tp value_type;
217 typedef typename _Base::allocator_type allocator_type;
218 typedef typename _Base::pointer pointer;
219 typedef typename _Base::const_pointer const_pointer;
230 :
_Base(__list, __al)
239 forward_list(size_type __n,
const allocator_type& __al = allocator_type())
244 const allocator_type& __al = allocator_type())
245 :
_Base(__n, __value, __al)
248 template<
typename _InputIterator,
249 typename = std::_RequireInputIter<_InputIterator>>
250 forward_list(_InputIterator __first, _InputIterator __last,
251 const allocator_type& __al = allocator_type())
253 __glibcxx_check_valid_constructor_range(__first, __last)),
262 const allocator_type& __al = allocator_type())
278 this->_M_invalidate_all();
282 template<
typename _InputIterator,
283 typename = std::_RequireInputIter<_InputIterator>>
285 assign(_InputIterator __first, _InputIterator __last)
288 __glibcxx_check_valid_range2(__first, __last, __dist);
290 if (__dist.
second >= __gnu_debug::__dp_sign)
291 _Base::assign(__gnu_debug::__unsafe(__first),
292 __gnu_debug::__unsafe(__last));
294 _Base::assign(__first, __last);
296 this->_M_invalidate_all();
300 assign(size_type __n,
const _Tp& __val)
302 _Base::assign(__n, __val);
303 this->_M_invalidate_all();
310 this->_M_invalidate_all();
313 using _Base::get_allocator;
318 before_begin()
noexcept
319 {
return { _Base::before_begin(),
this }; }
322 before_begin()
const noexcept
323 {
return { _Base::before_begin(),
this }; }
327 {
return { _Base::begin(),
this }; }
330 begin()
const noexcept
331 {
return { _Base::begin(),
this }; }
335 {
return { _Base::end(),
this }; }
339 {
return { _Base::end(),
this }; }
342 cbegin()
const noexcept
343 {
return { _Base::cbegin(),
this }; }
346 cbefore_begin()
const noexcept
347 {
return { _Base::cbefore_begin(),
this }; }
350 cend()
const noexcept
351 {
return { _Base::cend(),
this }; }
354 using _Base::max_size;
361 __glibcxx_check_nonempty();
362 return _Base::front();
368 __glibcxx_check_nonempty();
369 return _Base::front();
374 using _Base::emplace_front;
375 using _Base::push_front;
380 __glibcxx_check_nonempty();
382 {
return __it == this->_M_base().cbegin(); });
386 template<
typename... _Args>
391 return { _Base::emplace_after(__pos.
base(),
392 std::forward<_Args>(__args)...),
400 return { _Base::insert_after(__pos.
base(), __val),
this };
407 return { _Base::insert_after(__pos.
base(),
std::move(__val)),
this };
411 insert_after(
const_iterator __pos, size_type __n,
const _Tp& __val)
414 return { _Base::insert_after(__pos.
base(), __n, __val),
this };
417 template<
typename _InputIterator,
418 typename = std::_RequireInputIter<_InputIterator>>
421 _InputIterator __first, _InputIterator __last)
426 if (__dist.
second >= __gnu_debug::__dp_sign)
429 _Base::insert_after(__pos.
base(),
430 __gnu_debug::__unsafe(__first),
431 __gnu_debug::__unsafe(__last)),
435 return { _Base::insert_after(__pos.
base(), __first, __last),
this };
442 return { _Base::insert_after(__pos.
base(), __il),
this };
451 {
return __it == __next; });
452 return _Base::erase_after(__pos);
459 return { _M_erase_after(__pos.
base()),
this };
467 __victim != __last.
base(); ++__victim)
469 _GLIBCXX_DEBUG_VERIFY(__victim != _Base::cend(),
470 _M_message(__gnu_debug::__msg_valid_range2)
471 ._M_sequence(*
this,
"this")
472 ._M_iterator(__pos,
"pos")
473 ._M_iterator(__last,
"last"));
475 {
return __it == __victim; });
478 return { _Base::erase_after(__pos.
base(), __last.
base()),
this };
483 noexcept(
noexcept(declval<_Base&>().swap(__list)) )
485 _Safe::_M_swap(__list);
490 resize(size_type __sz)
495 _Base_iterator __victim = _Base::begin();
497 for (size_type __i = __sz; __victim != __end && __i > 0; --__i)
500 for (; __victim != __end; ++__victim)
503 {
return __it == __victim; });
513 __throw_exception_again;
518 resize(size_type __sz,
const value_type& __val)
523 _Base_iterator __victim = _Base::begin();
525 for (size_type __i = __sz; __victim != __end && __i > 0; --__i)
528 for (; __victim != __end; ++__victim)
531 {
return __it == __victim; });
536 _Base::resize(__sz, __val);
541 __throw_exception_again;
549 this->_M_invalidate_all();
558 _M_message(__gnu_debug::__msg_self_splice)
559 ._M_sequence(*
this,
"this"));
560 _GLIBCXX_DEBUG_VERIFY(__list.get_allocator() == this->get_allocator(),
561 _M_message(__gnu_debug::__msg_splice_alloc)
563 ._M_sequence(__list,
"__list"));
566 return __it != __list._M_base().cbefore_begin()
567 && __it != __list._M_base().end();
569 _Base::splice_after(__pos.
base(),
std::move(__list._M_base()));
574 { splice_after(__pos,
std::move(__list)); }
582 _M_message(__gnu_debug::__msg_splice_bad)
583 ._M_iterator(__i,
"__i"));
585 _M_message(__gnu_debug::__msg_splice_other)
586 ._M_iterator(__i,
"__i")
587 ._M_sequence(__list,
"__list"));
588 _GLIBCXX_DEBUG_VERIFY(__list.get_allocator() == this->get_allocator(),
589 _M_message(__gnu_debug::__msg_splice_alloc)
591 ._M_sequence(__list,
"__list"));
597 {
return __it == __next; });
598 _Base::splice_after(__pos.
base(),
std::move(__list._M_base()),
605 { splice_after(__pos,
std::move(__list), __i); }
614 __glibcxx_check_valid_fl_range(__before, __last, __dist);
616 _M_message(__gnu_debug::__msg_splice_other)
617 ._M_sequence(__list,
"list")
618 ._M_iterator(__before,
"before"));
621 _M_message(__gnu_debug::__msg_valid_range2)
622 ._M_sequence(__list,
"list")
623 ._M_iterator(__before,
"before")
624 ._M_iterator(__last,
"last"));
625 _GLIBCXX_DEBUG_VERIFY(__before != __last,
626 _M_message(__gnu_debug::__msg_valid_range2)
627 ._M_sequence(__list,
"list")
628 ._M_iterator(__before,
"before")
629 ._M_iterator(__last,
"last"));
630 _GLIBCXX_DEBUG_VERIFY(__list.get_allocator() == this->get_allocator(),
631 _M_message(__gnu_debug::__msg_splice_alloc)
633 ._M_sequence(__list,
"__list"));
636 __tmp != __last.
base(); ++__tmp)
638 _GLIBCXX_DEBUG_VERIFY(__tmp != __list._M_base().end(),
639 _M_message(__gnu_debug::__msg_valid_range2)
640 ._M_sequence(__list,
"list")
641 ._M_iterator(__before,
"before")
642 ._M_iterator(__last,
"last"));
643 _GLIBCXX_DEBUG_VERIFY(__listptr !=
this || __tmp != __pos.
base(),
644 _M_message(__gnu_debug::__msg_splice_overlap)
645 ._M_iterator(__tmp,
"position")
646 ._M_iterator(__before,
"before")
647 ._M_iterator(__last,
"last"));
651 {
return __it == __tmp; });
654 _Base::splice_after(__pos.
base(),
std::move(__list._M_base()),
661 { splice_after(__pos,
std::move(__list), __before, __last); }
664#if __cplusplus > 201703L
665 using __remove_return_type = size_type;
666# define _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG \
667 __attribute__((__abi_tag__("__cxx20")))
668# define _GLIBCXX20_ONLY(__expr) __expr
670 using __remove_return_type = void;
671# define _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG
672# define _GLIBCXX20_ONLY(__expr)
676 _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG
678 remove(
const _Tp& __val)
681 return _Base::remove(__val);
683 size_type __removed __attribute__((__unused__)) = 0;
687 while (__x != _Base::end())
693 __x = _M_erase_after(__old);
694 _GLIBCXX20_ONLY( __removed++ );
703 if (__extra != _Base::end())
705 this->_M_erase_after(__extra);
706 _GLIBCXX20_ONLY( __removed++ );
709 return _GLIBCXX20_ONLY( __removed );
712 template<
typename _Pred>
714 remove_if(_Pred __pred)
717 return _Base::remove_if(__pred);
719 size_type __removed __attribute__((__unused__)) = 0;
722 while (__x != _Base::end())
725 __x = _M_erase_after(__old);
726 _GLIBCXX20_ONLY( __removed++ );
731 return _GLIBCXX20_ONLY( __removed );
734 _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG
739 template<
typename _BinPred>
741 unique(_BinPred __binary_pred)
744 return _Base::unique(__binary_pred);
748 if (__first == __last)
749 return _GLIBCXX20_ONLY(0);
751 size_type __removed __attribute__((__unused__)) = 0;
753 while (__next != __last)
755 if (__binary_pred(*__first, *__next))
757 __next = _M_erase_after(__first);
758 _GLIBCXX20_ONLY( __removed++ );
764 return _GLIBCXX20_ONLY( __removed );
767#undef _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG
768#undef _GLIBCXX20_ONLY
775 __glibcxx_check_sorted(_Base::begin(), _Base::end());
776 __glibcxx_check_sorted(__list._M_base().begin(),
777 __list._M_base().end());
780 return __it != __list._M_base().cbefore_begin()
781 && __it != __list._M_base().cend();
783 _Base::merge(
std::move(__list._M_base()));
791 template<
typename _Comp>
799 __list._M_base().end(), __comp);
803 return __it != __list._M_base().cbefore_begin()
804 && __it != __list._M_base().cend();
806 _Base::merge(
std::move(__list._M_base()), __comp);
810 template<
typename _Comp>
816 using _Base::reverse;
819 _M_base()
noexcept {
return *
this; }
822 _M_base()
const noexcept {
return *
this; }
825#if __cpp_deduction_guides >= 201606
826 template<
typename _InputIterator,
typename _ValT
829 typename = _RequireInputIter<_InputIterator>,
830 typename = _RequireAllocator<_Allocator>>
831 forward_list(_InputIterator, _InputIterator, _Allocator = _Allocator())
835 template<
typename _Tp,
typename _Alloc>
839 {
return __lx._M_base() == __ly._M_base(); }
841 template<
typename _Tp,
typename _Alloc>
845 {
return __lx._M_base() < __ly._M_base(); }
847 template<
typename _Tp,
typename _Alloc>
849 operator!=(
const forward_list<_Tp, _Alloc>& __lx,
850 const forward_list<_Tp, _Alloc>& __ly)
851 {
return !(__lx == __ly); }
854 template<
typename _Tp,
typename _Alloc>
858 {
return (__ly < __lx); }
861 template<
typename _Tp,
typename _Alloc>
865 {
return !(__lx < __ly); }
868 template<
typename _Tp,
typename _Alloc>
872 {
return !(__ly < __lx); }
875 template<
typename _Tp,
typename _Alloc>
878 noexcept(
noexcept(__lx.
swap(__ly)))
886 template<
typename _Tp,
typename _Alloc>
887 struct _BeforeBeginHelper<
std::__debug::forward_list<_Tp, _Alloc> >
891 template<
typename _Iterator>
893 _S_Is(
const _Safe_iterator<_Iterator, _Sequence>& __it)
896 __it.base() == __it._M_get_sequence()->_M_base().before_begin();
899 template<
typename _Iterator>
901 _S_Is_Beginnest(
const _Safe_iterator<_Iterator, _Sequence>& __it)
902 {
return _S_Is(__it); }
905 template<
typename _Tp,
typename _Alloc>
906 struct _Sequence_traits<
std::__debug::forward_list<_Tp, _Alloc> >
910 static typename _Distance_traits<_It>::__type
914 ? std::make_pair(0, __dp_exact) :
std::make_pair(1, __dp_sign);
918#ifndef _GLIBCXX_DEBUG_PEDANTIC
919 template<
class _Tp,
class _Alloc>
920 struct _Insert_range_from_self_is_safe<
921 std::__debug::forward_list<_Tp, _Alloc> >
922 {
enum { __value = 1 }; };
#define __glibcxx_check_insert_after(_Position)
#define __glibcxx_check_erase_after(_Position)
#define __glibcxx_check_sorted_pred(_First, _Last, _Pred)
#define __glibcxx_check_insert_range_after(_Position, _First, _Last, _Dist)
#define __glibcxx_check_erase_range_after(_First, _Last)
constexpr std::remove_reference< _Tp >::type && move(_Tp &&__t) noexcept
Convert a value to an rvalue.
_T2 second
The second member.
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
ISO C++ entities toplevel namespace is std.
constexpr auto cend(const _Container &__cont) noexcept(noexcept(std::end(__cont))) -> decltype(std::end(__cont))
Return an iterator pointing to one past the last element of the const container.
GNU extensions for public use.
GNU debug classes for public use.
constexpr _Iterator __base(_Iterator __it)
The standard allocator, as per [20.4].
Traits class for iterators.
A standard container with linear time access to elements, and fixed time insertion/deletion at any po...
void swap(forward_list &__list) noexcept
Swaps data with another forward_list.
One of the comparison functors.
Struct holding two objects of arbitrary type.
bool _M_dereferenceable() const
Is the iterator dereferenceable?
bool _M_before_dereferenceable() const
Is the iterator before a dereferenceable one?
_Iterator & base() noexcept
Return the underlying iterator.
bool _M_is_before_begin() const
Is this iterator equal to the sequence's before_begin() iterator if any?
Base class for constructing a safe sequence type that tracks iterators that reference it.
void _M_invalidate_if(_Predicate __pred)
void _M_transfer_from_if(_Safe_sequence &__from, _Predicate __pred)
Basic functionality for a safe iterator.
_Safe_sequence_base * _M_sequence
bool _M_attached_to(const _Safe_sequence_base *__seq) const
_Safe_iterator_base * _M_prior
_Safe_iterator_base * _M_next
Base class that supports tracking of iterators that reference a sequence.
_Safe_iterator_base * _M_const_iterators
The list of constant iterators that reference this container.
void _M_revalidate_singular()
_Safe_iterator_base * _M_iterators
The list of mutable iterators that reference this container.
void _M_detach_singular()
Safe class dealing with some allocator dependent operations.
Class std::forward_list with safety/checking/debug instrumentation.
Special iterators swap and invalidation for forward_list because of the before_begin iterator.