NAME

       __gnu_debug::_Safe_iterator_base -

SYNOPSIS

       Inherited by __gnu_debug::_Safe_iterator< _Iterator, _Sequence >, and std::__debug::bitset< _Nb
       >::reference.

   Public Member Functions
       void _M_attach (_Safe_sequence_base *__seq, bool __constant)
       void _M_attach_single (_Safe_sequence_base *__seq, bool __constant)
       bool _M_attached_to (const _Safe_sequence_base *__seq) const
       bool _M_can_compare (const _Safe_iterator_base &__x) const
       void _M_detach ()
       void _M_detach_single ()
       bool _M_singular () const

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

   Protected Member Functions
       __gnu_cxx::__mutex & _M_get_mutex ()
       _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 (const _Safe_iterator_base &)
       _Safe_iterator_base & operator= (const _Safe_iterator_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.

       Definition at line 51 of file safe_base.h.

Constructor & Destructor Documentation

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

       Definition at line 77 of file safe_base.h.

   __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 88 of file safe_base.h.

       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.

       Definition at line 95 of file safe_base.h.

       References _M_attach(), and _M_sequence.

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_iterator< _Iterator, _Sequence >::_M_attach(), and
       _Safe_iterator_base().

   void __gnu_debug::_Safe_iterator_base::_M_attach_single (_Safe_sequence_base *__seq, bool__constant)
       Likewise, but not thread-safe.

       Referenced by __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::_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.

       Definition at line 130 of file safe_base.h.

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

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

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

   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_dereferenceable(), and
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::_Safe_iterator().

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 73 of file safe_base.h.

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

   _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 69 of file safe_base.h.

   _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 56 of file safe_base.h.

       Referenced by _M_attached_to(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::_M_is_begin(),
       __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::_M_is_end(), __gnu_debug::_Safe_sequence< _Sequence
       >::_M_transfer_iter(), and _Safe_iterator_base().

   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 65 of file safe_base.h.

Author

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