NAME

       __gnu_debug::_Safe_iterator_base - Basic functionality for a safe iterator.

SYNOPSIS

       #include <safe_base.h>

       Inherited by __gnu_debug::_Safe_iterator< _Iterator, _Sequence, std::forward_iterator_tag
       >, __gnu_debug::_Safe_iterator< _Iterator, _Sequence, std::bidirectional_iterator_tag >,
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >, and
       __gnu_debug::_Safe_local_iterator_base.

   Public Member Functions
       bool _M_attached_to (const _Safe_sequence_base *__seq) const
       bool _M_can_compare (const _Safe_iterator_base &__x) const  throw ()
       void _M_detach_single ()  throw ()
       void _M_invalidate ()
       void _M_reset ()  throw ()
       bool _M_singular () const  throw ()
       void _M_unlink ()  throw ()

   Public Attributes
       _Safe_iterator_base * _M_next
       _Safe_iterator_base * _M_prior
       _Safe_sequence_base * _M_sequence
       unsigned int _M_version

   Protected Member Functions
       _Safe_iterator_base ()
       _Safe_iterator_base (const _Safe_iterator_base &__x, bool __constant)
       _Safe_iterator_base (const _Safe_sequence_base *__seq, bool __constant)
       void _M_attach (_Safe_sequence_base *__seq, bool __constant)
       void _M_attach_single (_Safe_sequence_base *__seq, bool __constant)  throw ()
       void _M_detach ()
       __gnu_cxx::__mutex & _M_get_mutex ()  throw ()

   Friends
       class _Safe_sequence_base

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.

Constructor & Destructor Documentation

   __gnu_debug::_Safe_iterator_base::_Safe_iterator_base () [inline],  [protected]
       Initializes the iterator and makes it singular.

   __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 __seq. __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.

       References _M_attach().

   __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.

       References _M_attach(), and _M_sequence.

Member Function Documentation

   void __gnu_debug::_Safe_iterator_base::_M_attach (_Safe_sequence_base * __seq, bool
       __constant) [protected]
       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 _Safe_iterator_base(), _Safe_iterator_base(), and
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::_M_attach().

   void __gnu_debug::_Safe_iterator_base::_M_attach_single (_Safe_sequence_base * __seq, bool
       __constant) [protected]
       Likewise, but not thread-safe.

       Referenced by __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category
       >::_M_attach_single().

   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.

       References _M_sequence.

   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.

   void __gnu_debug::_Safe_iterator_base::_M_detach () [protected]
       Detach the iterator for whatever sequence it is attached to, if any.

       Referenced by __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category
       >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category
       >::operator=(), and __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category
       >::operator=().

   void __gnu_debug::_Safe_iterator_base::_M_detach_single ()
       Likewise, but not thread-safe.

       Referenced by __gnu_debug::_Safe_sequence< _Sequence >::_M_transfer_from_if().

   __gnu_cxx::__mutex & __gnu_debug::_Safe_iterator_base::_M_get_mutex () [protected]
       For use in _Safe_iterator.

       Referenced by __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence >::operator++(),
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::operator++(),
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::operator=(),
       __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence >::operator=(),
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::operator=(), and
       __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence >::operator=().

   void __gnu_debug::_Safe_iterator_base::_M_invalidate () [inline]
       Invalidate the iterator, making it singular.

       References _M_version.

   void __gnu_debug::_Safe_iterator_base::_M_reset ()
       Reset all member variables

   bool __gnu_debug::_Safe_iterator_base::_M_singular () const
       Is this iterator singular?

       Referenced by __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category
       >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category
       >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category
       >::_Safe_iterator(), __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence
       >::_Safe_local_iterator(), __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence
       >::_Safe_local_iterator(), __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence
       >::_Safe_local_iterator(), __gnu_debug::__check_singular_aux(),
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::_M_dereferenceable(),
       __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence >::_M_dereferenceable(),
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::_M_incrementable(),
       __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence >::_M_incrementable(),
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::operator=(),
       __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence >::operator=(),
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::operator=(), and
       __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence >::operator=().

   void __gnu_debug::_Safe_iterator_base::_M_unlink () [inline]
       Unlink itself

       References _M_next, and _M_prior.

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.

       Referenced by __gnu_debug::_Safe_sequence< _SafeSequence >::_M_invalidate_if(),
       __gnu_debug::_Safe_sequence< _Sequence >::_M_transfer_from_if(), and _M_unlink().

   _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.

       Referenced by __gnu_debug::_Safe_sequence< _SafeSequence >::_M_invalidate_if(),
       __gnu_debug::_Safe_sequence< _Sequence >::_M_transfer_from_if(), and _M_unlink().

   _Safe_sequence_base* __gnu_debug::_Safe_iterator_base::_M_sequence
       The sequence this iterator references; may be NULL to indicate a singular iterator.

       Referenced by __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category
       >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category
       >::_Safe_iterator(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category
       >::_Safe_iterator(), _Safe_iterator_base(), __gnu_debug::_Safe_local_iterator< _Iterator,
       _Sequence >::_Safe_local_iterator(), __gnu_debug::_Safe_local_iterator< _Iterator,
       _Sequence >::_Safe_local_iterator(), __gnu_debug::_Safe_local_iterator< _Iterator,
       _Sequence >::_Safe_local_iterator(),
       __gnu_debug::_Safe_local_iterator_base::_Safe_local_iterator_base(), _M_attached_to(),
       __gnu_debug::_Safe_sequence< _Sequence >::_M_transfer_from_if(),
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::operator=(),
       __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence >::operator=(),
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::operator=(), and
       __gnu_debug::_Safe_local_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.

       Referenced by _M_invalidate(), __gnu_debug::_Safe_sequence< _Sequence
       >::_M_transfer_from_if(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category
       >::_M_value_initialized(), __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence
       >::_M_value_initialized(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category
       >::operator=(), __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence >::operator=(),
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence, _Category >::operator=(), and
       __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence >::operator=().

Author

       Generated automatically by Doxygen for libstdc++ from the source code.

                                            libstdc++      __gnu_debug::_Safe_iterator_base(3cxx)