29 #ifndef _GLIBCXX_DEBUG_FORWARD_LIST
30 #define _GLIBCXX_DEBUG_FORWARD_LIST 1
32 #pragma GCC system_header
35 namespace 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);
183 namespace 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;
207 _Base_ref(
const _Base& __r) : _M_ref(__r) { }
213 typedef typename _Base::reference reference;
214 typedef typename _Base::const_reference const_reference;
221 typedef typename _Base::size_type size_type;
222 typedef typename _Base::difference_type difference_type;
224 typedef _Tp value_type;
225 typedef typename _Base::allocator_type allocator_type;
226 typedef typename _Base::pointer pointer;
227 typedef typename _Base::const_pointer const_pointer;
238 :
_Base(__list, __al)
247 forward_list(size_type __n,
const allocator_type& __al = allocator_type())
252 const allocator_type& __al = allocator_type())
253 :
_Base(__n, __value, __al)
256 template<
typename _InputIterator,
257 typename = std::_RequireInputIter<_InputIterator>>
258 forward_list(_InputIterator __first, _InputIterator __last,
259 const allocator_type& __al = allocator_type())
261 __glibcxx_check_valid_constructor_range(__first, __last)),
270 const allocator_type& __al = allocator_type())
288 this->_M_invalidate_all();
292 template<
typename _InputIterator,
293 typename = std::_RequireInputIter<_InputIterator>>
295 assign(_InputIterator __first, _InputIterator __last)
298 __glibcxx_check_valid_range2(__first, __last, __dist);
300 if (__dist.
second >= __gnu_debug::__dp_sign)
301 _Base::assign(__gnu_debug::__unsafe(__first),
302 __gnu_debug::__unsafe(__last));
304 _Base::assign(__first, __last);
306 this->_M_invalidate_all();
310 assign(size_type __n,
const _Tp& __val)
312 _Base::assign(__n, __val);
313 this->_M_invalidate_all();
320 this->_M_invalidate_all();
323 using _Base::get_allocator;
328 before_begin() noexcept
329 {
return { _Base::before_begin(),
this }; }
332 before_begin()
const noexcept
333 {
return { _Base::before_begin(),
this }; }
340 begin()
const noexcept
356 cbefore_begin()
const noexcept
357 {
return { _Base::cbefore_begin(),
this }; }
360 cend()
const noexcept
364 using _Base::max_size;
371 __glibcxx_check_nonempty();
372 return _Base::front();
378 __glibcxx_check_nonempty();
379 return _Base::front();
384 using _Base::emplace_front;
385 using _Base::push_front;
390 __glibcxx_check_nonempty();
392 {
return __it == this->_M_base().cbegin(); });
396 template<
typename... _Args>
401 return { _Base::emplace_after(__pos.
base(),
402 std::forward<_Args>(__args)...),
410 return { _Base::insert_after(__pos.
base(), __val),
this };
417 return { _Base::insert_after(__pos.
base(),
std::move(__val)),
this };
421 insert_after(
const_iterator __pos, size_type __n,
const _Tp& __val)
424 return { _Base::insert_after(__pos.
base(), __n, __val),
this };
427 template<
typename _InputIterator,
428 typename = std::_RequireInputIter<_InputIterator>>
431 _InputIterator __first, _InputIterator __last)
436 if (__dist.
second >= __gnu_debug::__dp_sign)
439 _Base::insert_after(__pos.
base(),
440 __gnu_debug::__unsafe(__first),
441 __gnu_debug::__unsafe(__last)),
445 return { _Base::insert_after(__pos.
base(), __first, __last),
this };
452 return { _Base::insert_after(__pos.
base(), __il),
this };
462 {
return __it == __next; });
463 return { _Base::erase_after(__pos.
base()),
this };
471 __victim != __last.
base(); ++__victim)
474 _M_message(__gnu_debug::__msg_valid_range2)
475 ._M_sequence(*
this,
"this")
476 ._M_iterator(__pos,
"pos")
477 ._M_iterator(__last,
"last"));
479 {
return __it == __victim; });
482 return { _Base::erase_after(__pos.
base(), __last.
base()),
this };
487 noexcept( noexcept(declval<_Base&>().
swap(__list)) )
489 _Safe::_M_swap(__list);
494 resize(size_type __sz)
496 this->_M_detach_singular();
501 for (size_type __i = __sz; __victim != __end && __i > 0; --__i)
504 for (; __victim != __end; ++__victim)
507 {
return __it == __victim; });
516 this->_M_revalidate_singular();
517 __throw_exception_again;
522 resize(size_type __sz,
const value_type& __val)
524 this->_M_detach_singular();
529 for (size_type __i = __sz; __victim != __end && __i > 0; --__i)
532 for (; __victim != __end; ++__victim)
535 {
return __it == __victim; });
540 _Base::resize(__sz, __val);
544 this->_M_revalidate_singular();
545 __throw_exception_again;
553 this->_M_invalidate_all();
562 _M_message(__gnu_debug::__msg_self_splice)
563 ._M_sequence(*
this,
"this"));
564 _GLIBCXX_DEBUG_VERIFY(__list.get_allocator() == this->get_allocator(),
565 _M_message(__gnu_debug::__msg_splice_alloc)
567 ._M_sequence(__list,
"__list"));
570 return __it != __list._M_base().cbefore_begin()
571 && __it != __list._M_base().end();
573 _Base::splice_after(__pos.
base(),
std::move(__list._M_base()));
578 { splice_after(__pos,
std::move(__list)); }
586 _M_message(__gnu_debug::__msg_splice_bad)
587 ._M_iterator(__i,
"__i"));
589 _M_message(__gnu_debug::__msg_splice_other)
590 ._M_iterator(__i,
"__i")
591 ._M_sequence(__list,
"__list"));
592 _GLIBCXX_DEBUG_VERIFY(__list.get_allocator() == this->get_allocator(),
593 _M_message(__gnu_debug::__msg_splice_alloc)
595 ._M_sequence(__list,
"__list"));
601 {
return __it == __next; });
602 _Base::splice_after(__pos.
base(),
std::move(__list._M_base()),
609 { splice_after(__pos,
std::move(__list), __i); }
618 __glibcxx_check_valid_fl_range(__before, __last, __dist);
620 _M_message(__gnu_debug::__msg_splice_other)
621 ._M_sequence(__list,
"list")
622 ._M_iterator(__before,
"before"));
625 _M_message(__gnu_debug::__msg_valid_range2)
626 ._M_sequence(__list,
"list")
627 ._M_iterator(__before,
"before")
628 ._M_iterator(__last,
"last"));
629 _GLIBCXX_DEBUG_VERIFY(__before != __last,
630 _M_message(__gnu_debug::__msg_valid_range2)
631 ._M_sequence(__list,
"list")
632 ._M_iterator(__before,
"before")
633 ._M_iterator(__last,
"last"));
634 _GLIBCXX_DEBUG_VERIFY(__list.get_allocator() == this->get_allocator(),
635 _M_message(__gnu_debug::__msg_splice_alloc)
637 ._M_sequence(__list,
"__list"));
640 __tmp != __last.
base(); ++__tmp)
642 _GLIBCXX_DEBUG_VERIFY(__tmp != __list._M_base().end(),
643 _M_message(__gnu_debug::__msg_valid_range2)
644 ._M_sequence(__list,
"list")
645 ._M_iterator(__before,
"before")
646 ._M_iterator(__last,
"last"));
647 _GLIBCXX_DEBUG_VERIFY(__listptr !=
this || __tmp != __pos.
base(),
648 _M_message(__gnu_debug::__msg_splice_overlap)
649 ._M_iterator(__tmp,
"position")
650 ._M_iterator(__before,
"before")
651 ._M_iterator(__last,
"last"));
655 {
return __it == __tmp; });
658 _Base::splice_after(__pos.
base(),
std::move(__list._M_base()),
665 { splice_after(__pos,
std::move(__list), __before, __last); }
668 #if __cplusplus > 201703L
669 using __remove_return_type = size_type;
670 # define _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG \
671 __attribute__((__abi_tag__("__cxx20")))
672 # define _GLIBCXX20_ONLY(__expr) __expr
674 using __remove_return_type = void;
675 # define _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG
676 # define _GLIBCXX20_ONLY(__expr)
680 _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG
682 remove(
const _Tp& __val)
684 if (!this->_M_iterators && !this->_M_const_iterators)
685 return _Base::remove(__val);
687 size_type __removed __attribute__((__unused__)) = 0;
688 _Base __to_destroy(get_allocator());
697 {
return __it == __next; });
698 __to_destroy.splice_after(__to_destroy.cbefore_begin(),
701 _GLIBCXX20_ONLY( __removed++ );
707 return _GLIBCXX20_ONLY( __removed );
710 template<
typename _Pred>
712 remove_if(_Pred __pred)
714 if (!this->_M_iterators && !this->_M_const_iterators)
715 return _Base::remove_if(__pred);
717 size_type __removed __attribute__((__unused__)) = 0;
718 _Base __to_destroy(get_allocator());
726 {
return __it == __x; });
727 __to_destroy.splice_after(__to_destroy.cbefore_begin(),
730 _GLIBCXX20_ONLY( __removed++ );
736 return _GLIBCXX20_ONLY( __removed );
739 _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG
744 template<
typename _BinPred>
746 unique(_BinPred __binary_pred)
748 if (!this->_M_iterators && !this->_M_const_iterators)
749 return _Base::unique(__binary_pred);
753 if (__first == __last)
754 return _GLIBCXX20_ONLY(0);
756 size_type __removed __attribute__((__unused__)) = 0;
757 _Base __to_destroy(get_allocator());
759 while (__next != __last)
761 if (__binary_pred(*__first, *__next))
764 {
return __it == __next; });
765 __to_destroy.splice_after(__to_destroy.cbefore_begin(),
768 _GLIBCXX20_ONLY( __removed++ );
774 return _GLIBCXX20_ONLY( __removed );
777 #undef _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG
778 #undef _GLIBCXX20_ONLY
786 __glibcxx_check_sorted(__list._M_base().begin(),
787 __list._M_base().end());
790 return __it != __list._M_base().cbefore_begin()
791 && __it != __list._M_base().cend();
793 _Base::merge(
std::move(__list._M_base()));
801 template<
typename _Comp>
809 __list._M_base().end(), __comp);
810 this->_M_transfer_from_if(__list,
813 return __it != __list._M_base().cbefore_begin()
814 && __it != __list._M_base().cend();
816 _Base::merge(
std::move(__list._M_base()), __comp);
820 template<
typename _Comp>
826 using _Base::reverse;
829 _M_base() noexcept {
return *
this; }
832 _M_base()
const noexcept {
return *
this; }
835 #if __cpp_deduction_guides >= 201606
836 template<
typename _InputIterator,
typename _ValT
839 typename = _RequireInputIter<_InputIterator>,
840 typename = _RequireAllocator<_Allocator>>
841 forward_list(_InputIterator, _InputIterator, _Allocator = _Allocator())
845 template<
typename _Tp,
typename _Alloc>
849 {
return __lx._M_base() == __ly._M_base(); }
851 #if __cpp_lib_three_way_comparison
852 template<
typename _Tp,
typename _Alloc>
853 constexpr __detail::__synth3way_t<_Tp>
856 {
return __x._M_base() <=> __y._M_base(); }
858 template<
typename _Tp,
typename _Alloc>
860 operator<(
const forward_list<_Tp, _Alloc>& __lx,
861 const forward_list<_Tp, _Alloc>& __ly)
862 {
return __lx._M_base() < __ly._M_base(); }
864 template<
typename _Tp,
typename _Alloc>
866 operator!=(
const forward_list<_Tp, _Alloc>& __lx,
867 const forward_list<_Tp, _Alloc>& __ly)
868 {
return !(__lx == __ly); }
871 template<
typename _Tp,
typename _Alloc>
875 {
return (__ly < __lx); }
878 template<
typename _Tp,
typename _Alloc>
882 {
return !(__lx < __ly); }
885 template<
typename _Tp,
typename _Alloc>
889 {
return !(__ly < __lx); }
893 template<
typename _Tp,
typename _Alloc>
896 noexcept(noexcept(__lx.swap(__ly)))
904 template<
typename _Tp,
typename _Alloc>
905 struct _BeforeBeginHelper<
std::__debug::forward_list<_Tp, _Alloc> >
909 template<
typename _Iterator>
911 _S_Is(
const _Safe_iterator<_Iterator, _Sequence>& __it)
914 __it.base() == __it._M_get_sequence()->_M_base().before_begin();
917 template<
typename _Iterator>
919 _S_Is_Beginnest(
const _Safe_iterator<_Iterator, _Sequence>& __it)
920 {
return _S_Is(__it); }
923 template<
typename _Tp,
typename _Alloc>
924 struct _Sequence_traits<
std::__debug::forward_list<_Tp, _Alloc> >
928 static typename _Distance_traits<_It>::__type
932 ? std::make_pair(0, __dp_exact) :
std::make_pair(1, __dp_sign);
936 #ifndef _GLIBCXX_DEBUG_PEDANTIC
937 template<
class _Tp,
class _Alloc>
938 struct _Insert_range_from_self_is_safe<
939 std::__debug::forward_list<_Tp, _Alloc> >
940 {
enum { __value = 1 }; };
auto_ptr & operator=(auto_ptr &__a)
auto_ptr assignment operator.
#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 _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
_T2 second
The second member.
constexpr std::remove_reference< _Tp >::type && move(_Tp &&__t) noexcept
Convert a value to an rvalue.
void swap(any &__x, any &__y) noexcept
Exchange the states of two any objects.
_Tp * begin(valarray< _Tp > &__va)
Return an iterator pointing to the first element of the valarray.
_Tp * end(valarray< _Tp > &__va)
Return an iterator pointing to one past the last element of the valarray.
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.
constexpr auto empty(const _Container &__cont) noexcept(noexcept(__cont.empty())) -> decltype(__cont.empty())
Return whether a container is empty.
constexpr auto cbegin(const _Container &__cont) noexcept(noexcept(std::begin(__cont))) -> decltype(std::begin(__cont))
Return an iterator pointing to the first element of the const container.
GNU extensions for public use.
void swap(forward_list< _Tp, _Alloc > &__lx, forward_list< _Tp, _Alloc > &__ly) noexcept(noexcept(__lx.swap(__ly)))
See std::forward_list::swap().
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...
One of the comparison functors.
Struct holding two objects of arbitrary type.
bool _M_dereferenceable() const
Is the iterator dereferenceable?
_Iterator & base() noexcept
Return the underlying iterator.
bool _M_before_dereferenceable() const
Is the iterator before a dereferenceable one?
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)
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 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.