libstdc++
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#include <safe_iterator.h>
Public Types | |
typedef _Safe_iterator< _Iterator, _Sequence, iterator_category > | _Self |
typedef _Traits::difference_type | difference_type |
typedef _Traits::iterator_category | iterator_category |
typedef _Iterator | iterator_type |
typedef _Traits::pointer | pointer |
typedef _Traits::reference | reference |
typedef _Traits::value_type | value_type |
Public Member Functions | |
constexpr | _Safe_iterator () noexcept |
constexpr | _Safe_iterator (_Iterator __i, const _Safe_sequence_base *__seq) noexcept |
constexpr | _Safe_iterator (_Safe_iterator &&__x) noexcept |
constexpr | _Safe_iterator (const _Safe_iterator &__x) noexcept |
template<typename _MutableIterator> | |
constexpr | _Safe_iterator (const _Safe_iterator< _MutableIterator, _Sequence, typename __gnu_cxx::__enable_if< _IsConstant::__value &&std::__are_same< _MutableIterator, _OtherIterator >::__value, _Category >::__type > &__x) noexcept |
void | _M_attach (const _Safe_sequence_base *__seq) |
void | _M_attach_single (const _Safe_sequence_base *__seq) |
bool | _M_attached_to (const _Safe_sequence_base *__seq) const |
bool | _M_before_dereferenceable () const |
template<typename _Diff> | |
bool | _M_can_advance (const std::pair< _Diff, _Distance_precision > &__dist, int __way) const |
bool | _M_can_advance (difference_type __n, bool __strict=false) const |
bool | _M_can_compare (const _Safe_iterator_base &__x) const noexcept |
bool | _M_dereferenceable () const |
void | _M_detach_single () noexcept |
_Distance_traits< _Iterator >::__type | _M_get_distance_from_begin () const |
_Distance_traits< _Iterator >::__type | _M_get_distance_to (const _Safe_iterator &__rhs) const |
_Distance_traits< _Iterator >::__type | _M_get_distance_to_end () const |
__gnu_cxx::__conditional_type< _IsConstant::__value, const_Sequence *, _Sequence * >::__type | _M_get_sequence () const |
bool | _M_incrementable () const |
void | _M_invalidate () |
bool | _M_is_before_begin () const |
constexpr bool | _M_is_begin () const |
bool | _M_is_beginnest () const |
bool | _M_is_end () const |
void | _M_reset () noexcept |
bool | _M_singular () const noexcept |
void | _M_unlink () noexcept |
bool | _M_valid_range (const _Safe_iterator &__rhs, std::pair< difference_type, _Distance_precision > &__dist, bool __check_dereferenceable=true) const |
bool | _M_value_initialized () const |
constexpr const _Iterator & | base () const noexcept |
constexpr _Iterator & | base () noexcept |
constexpr | operator _Iterator () const noexcept |
constexpr reference | operator* () const noexcept |
constexpr _Safe_iterator & | operator++ () noexcept |
constexpr _Safe_iterator | operator++ (int) noexcept |
constexpr pointer | operator-> () const noexcept |
constexpr _Safe_iterator & | operator= (_Safe_iterator &&__x) noexcept |
constexpr _Safe_iterator & | operator= (const _Safe_iterator &__x) noexcept |
Static Public Member Functions | |
static constexpr bool | _S_constant () |
Public Attributes | |
_Safe_iterator_base * | _M_next |
_Safe_iterator_base * | _M_prior |
const _Safe_sequence_base * | _M_sequence |
unsigned int | _M_version |
Protected Types | |
typedef std::__are_same< typename _Sequence::_Base::const_iterator, _Iterator > | _IsConstant |
typedef __gnu_cxx::__conditional_type< _IsConstant::__value, typename_Sequence::_Base::iterator, typename_Sequence::_Base::const_iterator >::__type | _OtherIterator |
Protected Member Functions | |
constexpr | _Safe_iterator (const _Safe_iterator &__x, _Unchecked) noexcept |
void | _M_attach (const _Safe_sequence_base *__seq, bool __constant) |
void | _M_attach_single (const _Safe_sequence_base *__seq, bool __constant) noexcept |
void | _M_detach () |
__gnu_cxx::__mutex & | _M_get_mutex () noexcept |
Friends | |
template<typename _IteR> | |
constexpr friend bool | operator== (const _Self &__lhs, const _Safe_iterator< _IteR, _Sequence, iterator_category > &__rhs) noexcept |
constexpr friend bool | operator== (const _Self &__lhs, const _Self &__rhs) noexcept |
Safe iterator wrapper.
The class template _Safe_iterator is a wrapper around an iterator that tracks the iterator's movement among sequences and checks that operations performed on the "safe" iterator are legal. In additional to the basic iterator operations (which are validated, and then passed to the underlying iterator), _Safe_iterator has member functions for iterator invalidation, attaching/detaching the iterator from sequences, and querying the iterator's state.
Note that _Iterator must be the first base class so that it gets initialized before the iterator is being attached to the container's list of iterators and it is being detached before _Iterator get destroyed. Otherwise it would result in a data race.
Definition at line 130 of file safe_iterator.h.
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protected |
Definition at line 141 of file safe_iterator.h.
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protected |
Definition at line 146 of file safe_iterator.h.
typedef _Safe_iterator<_Iterator, _Sequence, iterator_category> __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::_Self |
Definition at line 548 of file safe_iterator.h.
typedef _Traits::difference_type __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::difference_type |
Definition at line 162 of file safe_iterator.h.
typedef _Traits::iterator_category __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::iterator_category |
Definition at line 160 of file safe_iterator.h.
typedef _Iterator __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::iterator_type |
Definition at line 159 of file safe_iterator.h.
typedef _Traits::pointer __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::pointer |
Definition at line 164 of file safe_iterator.h.
typedef _Traits::reference __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::reference |
Definition at line 163 of file safe_iterator.h.
typedef _Traits::value_type __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::value_type |
Definition at line 161 of file safe_iterator.h.
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inlineconstexprprotectednoexcept |
Definition at line 151 of file safe_iterator.h.
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inlineconstexprnoexcept |
Definition at line 172 of file safe_iterator.h.
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inlineconstexprnoexcept |
Safe iterator construction from an unsafe iterator and its sequence.
seq
is not NULL Definition at line 182 of file safe_iterator.h.
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inlineconstexprnoexcept |
Copy construction.
Definition at line 191 of file safe_iterator.h.
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inlineconstexprnoexcept |
Move construction.
Definition at line 213 of file safe_iterator.h.
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inlineconstexprnoexcept |
Converting constructor from a mutable iterator to a constant iterator.
Definition at line 240 of file safe_iterator.h.
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inline |
Attach iterator to the given sequence.
Definition at line 448 of file safe_iterator.h.
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=(), and __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=().
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protectedinherited |
Attaches this iterator to the given sequence, detaching it from whatever sequence it was attached to originally. If the new sequence is the NULL pointer, the iterator is left unattached.
References _M_attach().
Referenced by _Safe_iterator_base(), _Safe_iterator_base(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_attach(), and _M_attach().
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inline |
Likewise, but not thread-safe.
Definition at line 453 of file safe_iterator.h.
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protectednoexceptinherited |
Likewise, but not thread-safe.
References _M_attach_single().
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_attach_single(), and _M_attach_single().
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inlineinherited |
Determines if we are attached to the given sequence.
Definition at line 161 of file safe_base.h.
References _M_attached_to(), and _M_sequence.
Referenced by _M_attached_to().
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inline |
Is the iterator before a dereferenceable one?
Definition at line 463 of file safe_iterator.h.
bool __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::_M_can_advance | ( | const std::pair< _Diff, _Distance_precision > & | __dist, |
int | __way ) const |
Definition at line 113 of file safe_iterator.tcc.
bool __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::_M_can_advance | ( | difference_type | __n, |
bool | __strict = false ) const |
Definition at line 86 of file safe_iterator.tcc.
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noexceptinherited |
Can we compare this iterator to the given iterator __x
? Returns true if both iterators are nonsingular and reference the same sequence.
References _Safe_iterator_base(), and _M_can_compare().
Referenced by _M_can_compare().
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inline |
Is the iterator dereferenceable?
Definition at line 458 of file safe_iterator.h.
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator*(), and __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator->().
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protectedinherited |
Detach the iterator for whatever sequence it is attached to, if any.
References _M_detach().
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), _M_detach(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=(), and __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=().
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noexceptinherited |
Likewise, but not thread-safe.
_Distance_traits< _Iterator >::__type __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::_M_get_distance_from_begin | ( | ) | const |
Definition at line 38 of file safe_iterator.tcc.
_Distance_traits< _Iterator >::__type __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::_M_get_distance_to | ( | const _Safe_iterator< _Iterator, _Sequence, _Category > & | __rhs | ) | const |
Definition at line 126 of file safe_iterator.tcc.
_Distance_traits< _Iterator >::__type __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::_M_get_distance_to_end | ( | ) | const |
Definition at line 62 of file safe_iterator.tcc.
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protectednoexceptinherited |
For use in _Safe_iterator.
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator++(), __gnu_debug::_Safe_local_iterator< _OtherIterator, _UContainer >::operator++(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=(), __gnu_debug::_Safe_local_iterator< _OtherIterator, _UContainer >::operator=(), and __gnu_debug::_Safe_local_iterator< _OtherIterator, _UContainer >::operator=().
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inline |
Definition at line 502 of file safe_iterator.h.
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inline |
Is the iterator incrementable?
Definition at line 475 of file safe_iterator.h.
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_before_dereferenceable(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator++(), and __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator++().
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inlineinherited |
Invalidate the iterator, making it singular.
Definition at line 176 of file safe_base.h.
References _M_invalidate(), and _M_version.
Referenced by _M_invalidate().
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inline |
Is this iterator equal to the sequence's before_begin() iterator if any?
Definition at line 537 of file safe_iterator.h.
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_dereferenceable().
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inlineconstexpr |
Is this iterator equal to the sequence's begin() iterator?
Definition at line 526 of file safe_iterator.h.
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inline |
Is this iterator equal to the sequence's before_begin() iterator if any or begin() otherwise?
Definition at line 543 of file safe_iterator.h.
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inline |
Is this iterator equal to the sequence's end() iterator?
Definition at line 531 of file safe_iterator.h.
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_dereferenceable(), and __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_incrementable().
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noexceptinherited |
Reset all member variables
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noexceptinherited |
Is this iterator singular?
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), __gnu_debug::_Safe_local_iterator< _OtherIterator, _UContainer >::_Safe_local_iterator(), __gnu_debug::_Safe_local_iterator< _OtherIterator, _UContainer >::_Safe_local_iterator(), __gnu_debug::_Safe_local_iterator< _OtherIterator, _UContainer >::_Safe_local_iterator(), __gnu_debug::__check_singular_aux(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_dereferenceable(), __gnu_debug::_Safe_local_iterator< _OtherIterator, _UContainer >::_M_dereferenceable(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_incrementable(), __gnu_debug::_Safe_local_iterator< _OtherIterator, _UContainer >::_M_incrementable(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=(), __gnu_debug::_Safe_local_iterator< _OtherIterator, _UContainer >::operator=(), and __gnu_debug::_Safe_local_iterator< _OtherIterator, _UContainer >::operator=().
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inlinenoexceptinherited |
Unlink itself
Definition at line 185 of file safe_base.h.
References _M_next, _M_prior, and _M_unlink().
Referenced by _M_unlink().
bool __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::_M_valid_range | ( | const _Safe_iterator< _Iterator, _Sequence, _Category > & | __rhs, |
std::pair< difference_type, _Distance_precision > & | __dist, | ||
bool | __check_dereferenceable = true ) const |
Definition at line 195 of file safe_iterator.tcc.
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inline |
Is the iterator value-initialized?
Definition at line 480 of file safe_iterator.h.
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=(), and __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=().
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inlinestaticconstexpr |
Determine if this is a constant iterator.
Definition at line 425 of file safe_iterator.h.
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_attach(), and __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_attach_single().
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inlineconstexprnoexcept |
Definition at line 437 of file safe_iterator.h.
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inlineconstexprnoexcept |
Return the underlying iterator.
Definition at line 433 of file safe_iterator.h.
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_before_dereferenceable(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_is_begin(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_is_end(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_M_value_initialized(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator*(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator++(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator->(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=(), and __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=().
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inlineconstexprnoexcept |
Conversion to underlying non-debug iterator to allow better interaction with non-debug containers.
Definition at line 444 of file safe_iterator.h.
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inlinenodiscardconstexprnoexcept |
Iterator dereference.
Definition at line 348 of file safe_iterator.h.
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inlineconstexprnoexcept |
Iterator preincrement.
Definition at line 384 of file safe_iterator.h.
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inlineconstexprnoexcept |
Iterator postincrement.
Definition at line 408 of file safe_iterator.h.
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inlinenodiscardconstexprnoexcept |
Iterator dereference.
Definition at line 366 of file safe_iterator.h.
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inlineconstexprnoexcept |
Move assignment.
Definition at line 305 of file safe_iterator.h.
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inlineconstexprnoexcept |
Copy assignment.
Definition at line 266 of file safe_iterator.h.
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friend |
Definition at line 563 of file safe_iterator.h.
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friend |
Definition at line 553 of file safe_iterator.h.
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inherited |
Pointer to the next iterator in the sequence's list of iterators. Only valid when _M_sequence != NULL.
Definition at line 76 of file safe_base.h.
Referenced by _Safe_iterator_base(), _Safe_iterator_base(), _Safe_iterator_base(), __gnu_debug::_Safe_sequence< _SafeSequence >::_M_invalidate_if(), __gnu_debug::_Safe_sequence< _Sequence >::_M_transfer_from_if(), and _M_unlink().
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inherited |
Pointer to the previous iterator in the sequence's list of iterators. Only valid when _M_sequence != NULL.
Definition at line 72 of file safe_base.h.
Referenced by _Safe_iterator_base(), _Safe_iterator_base(), _Safe_iterator_base(), __gnu_debug::_Safe_sequence< _SafeSequence >::_M_invalidate_if(), __gnu_debug::_Safe_sequence< _Sequence >::_M_transfer_from_if(), and _M_unlink().
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inherited |
The sequence this iterator references; may be NULL to indicate a singular iterator. Stored as pointer-to-const because sequence could be declared as const.
Definition at line 59 of file safe_base.h.
Referenced by __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::_Safe_iterator(), _Safe_iterator_base(), _Safe_iterator_base(), _Safe_iterator_base(), _M_attached_to(), __gnu_debug::_Safe_sequence< _Sequence >::_M_transfer_from_if(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=(), __gnu_debug::_Safe_iterator< _Base_iterator, map >::operator=(), __gnu_debug::_Safe_local_iterator< _OtherIterator, _UContainer >::operator=(), and __gnu_debug::_Safe_local_iterator< _OtherIterator, _UContainer >::operator=().
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inherited |
The version number of this iterator. The sentinel value 0 is used to indicate an invalidated iterator (i.e., one that is singular because of an operation on the container). This version number must equal the version number in the sequence referenced by _M_sequence for the iterator to be non-singular.
Definition at line 68 of file safe_base.h.
Referenced by _Safe_iterator_base(), _Safe_iterator_base(), _Safe_iterator_base(), _M_invalidate(), and __gnu_debug::_Safe_sequence< _Sequence >::_M_transfer_from_if().