__gnu_debug::_Safe_iterator_base Class Reference

Basic functionality for a "safe" iterator. More...

#include <safe_base.h>

Inheritance diagram for __gnu_debug::_Safe_iterator_base:

List of all members.

Public Member Functions
void	_M_attach (_Safe_sequence_base *__seq, bool __constant)
void	_M_detach ()
bool	_M_attached_to (const _Safe_sequence_base *__seq) const
bool	_M_singular () const
bool	_M_can_compare (const _Safe_iterator_base &__x) const
Public Attributes
_Safe_sequence_base *	_M_sequence
unsigned int	_M_version
_Safe_iterator_base *	_M_prior
_Safe_iterator_base *	_M_next
Protected Member Functions
	_Safe_iterator_base ()
	_Safe_iterator_base (const _Safe_sequence_base *__seq, bool __constant)
	_Safe_iterator_base (const _Safe_iterator_base &__x, bool __constant)
_Safe_iterator_base &	operator= (const _Safe_iterator_base &)
	_Safe_iterator_base (const _Safe_iterator_base &)
	~_Safe_iterator_base ()

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Detailed Description

Basic functionality for a "safe" iterator.

The _Safe_iterator_base base class implements the functionality of a safe iterator that is not specific to a particular iterator type. It contains a pointer back to the sequence it references along with iterator version information and pointers to form a doubly-linked list of iterators referenced by the container.

This class must not perform any operations that can throw an exception, or the exception guarantees of derived iterators will be broken.

Definition at line 50 of file safe_base.h.

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Constructor & Destructor Documentation

__gnu_debug::_Safe_iterator_base::_Safe_iterator_base (   )  [inline, protected]

Initializes the iterator and makes it singular. Definition at line 76 of file safe_base.h. References _M_prior, and _M_version.

__gnu_debug::_Safe_iterator_base::_Safe_iterator_base (  const _Safe_sequence_base *  __seq, bool  __constant )  [inline, protected]

Initialize the iterator to reference the sequence pointed to by . __constant is true when we are initializing a constant iterator, and false if it is a mutable iterator. Note that __seq may be NULL, in which case the iterator will be singular. Otherwise, the iterator will reference __seq and be nonsingular. Definition at line 87 of file safe_base.h. References _M_attach(), _M_prior, and _M_version.

__gnu_debug::_Safe_iterator_base::_Safe_iterator_base (  const _Safe_iterator_base &  __x, bool  __constant )  [inline, protected]

Initializes the iterator to reference the same sequence that __x does. __constant is true if this is a constant iterator, and false if it is mutable. Definition at line 94 of file safe_base.h. References _M_attach(), _M_prior, _M_sequence, and _M_version.

__gnu_debug::_Safe_iterator_base::_Safe_iterator_base (  const _Safe_iterator_base &   )  [explicit, protected]

__gnu_debug::_Safe_iterator_base::~_Safe_iterator_base (   )  [inline, protected]

Definition at line 104 of file safe_base.h. References _M_detach().

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Member Function Documentation

void __gnu_debug::_Safe_iterator_base::_M_attach (  _Safe_sequence_base *  __seq, bool  __constant )

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. Referenced by __gnu_debug::_Safe_sequence< _Sequence >::_M_transfer_iter(), and _Safe_iterator_base().

bool __gnu_debug::_Safe_iterator_base::_M_attached_to (  const _Safe_sequence_base *  __seq  )  const [inline]

Determines if we are attached to the given sequence. Definition at line 120 of file safe_base.h.

bool __gnu_debug::_Safe_iterator_base::_M_can_compare (  const _Safe_iterator_base &  __x  )  const

Can we compare this iterator to the given iterator __x? Returns true if both iterators are nonsingular and reference the same sequence. Referenced by __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::_M_valid_range(), __gnu_debug::operator!=(), __gnu_debug::operator-(), __gnu_debug::operator==(), __gnu_debug::operator>(), and __gnu_debug::operator>=().

void __gnu_debug::_Safe_iterator_base::_M_detach (   )

Detach the iterator for whatever sequence it is attached to, if any. Referenced by ~_Safe_iterator_base().

bool __gnu_debug::_Safe_iterator_base::_M_singular (   )  const

Is this iterator singular? Referenced by __gnu_debug::__check_singular(), __gnu_debug::__check_singular_aux(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::_M_can_advance(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::_M_decrementable(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::_M_dereferenceable(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::_M_invalidate(), __gnu_debug::_Error_formatter::_Parameter::_Parameter(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::_Safe_iterator(), __gnu_debug::operator!=(), __gnu_debug::operator-(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::operator=(), __gnu_debug_def::bitset< _Nb >::reference::operator=(), __gnu_debug::operator==(), __gnu_debug::operator>(), and __gnu_debug::operator>=().

_Safe_iterator_base& __gnu_debug::_Safe_iterator_base::operator= (  const _Safe_iterator_base &   )  [protected]

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Member Data Documentation

_Safe_iterator_base* __gnu_debug::_Safe_iterator_base::_M_next

Pointer to the next 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 __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::_M_invalidate(), __gnu_debug::_Safe_sequence< _Sequence >::_M_invalidate_if(), and __gnu_debug::_Safe_sequence< _Sequence >::_M_transfer_iter().

_Safe_iterator_base* __gnu_debug::_Safe_iterator_base::_M_prior

Pointer to the previous iterator in the sequence's list of iterators. Only valid when _M_sequence != NULL. Definition at line 68 of file safe_base.h. Referenced by _Safe_iterator_base().

_Safe_sequence_base* __gnu_debug::_Safe_iterator_base::_M_sequence

The sequence this iterator references; may be NULL to indicate a singular iterator. Definition at line 55 of file safe_base.h. Referenced by __gnu_debug::_Safe_sequence< _Sequence >::_M_transfer_iter(), _Safe_iterator_base(), and __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::operator=().

unsigned int __gnu_debug::_Safe_iterator_base::_M_version

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 64 of file safe_base.h. Referenced by __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::_M_invalidate(), and _Safe_iterator_base().

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The documentation for this class was generated from the following file:

• safe_base.h

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