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bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE > Class Template Reference

#include <bslstl_treeiterator.h>

List of all members.

Public Types

typedef
bsl::bidirectional_iterator_tag 
iterator_category
typedef NcType value_type
typedef DIFFERENCE_TYPE difference_type
typedef VALUE * pointer
typedef VALUE & reference

Public Member Functions

 TreeIterator ()
 TreeIterator (const bslalg::RbTreeNode *node)
template<class NON_CONST_ITERATOR >
 TreeIterator (const NON_CONST_ITERATOR &original, typename bsl::enable_if< bsl::is_convertible< NON_CONST_ITERATOR, NcIter >::value, int >::type=0)
 TreeIterator (const TreeIterator &original)
 ~TreeIterator ()
TreeIteratoroperator= (const TreeIterator &rhs)
TreeIteratoroperator++ ()
TreeIteratoroperator-- ()
reference operator* () const
pointer operator-> () const
const bslalg::RbTreeNodenode () const

Friends

class TreeIterator
template<class VALUE1 , class VALUE2 , class NODEPTR , class DIFF >
bool operator== (const TreeIterator< VALUE1, NODEPTR, DIFF > &, const TreeIterator< VALUE2, NODEPTR, DIFF > &)
template<class VALUE1 , class VALUE2 , class NODEPTR , class DIFF >
bool operator!= (const TreeIterator< VALUE1, NODEPTR, DIFF > &, const TreeIterator< VALUE2, NODEPTR, DIFF > &)

Detailed Description

template<class VALUE, class NODE, class DIFFERENCE_TYPE>
class bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >

This class provides an STL-conforming bidirectional iterator over the ordered bslalg::RbTreeNode objects in a binary tree (see section [24.2.6 bidirectional.iterators] of the C++11 standard). A TreeIterator provides access to values of the parameterized VALUE, over a binary tree composed of nodes of the parameterized NODE (which must derive from bslalg::RbTreeNode). The parameterized DIFFERENCE_TYPE determines the standard required difference_type of the iterator, without requiring access to the allocator-traits for the node. The behavior of the operator* method is undefined unless the iterator is at a valid position in the tree (i.e., not the end) and the referenced element has not been removed since the iterator was constructed. NODE must derives from bslalg::RbTreeNode, and contains a value method that returns a reference providing modifiable access to a type that is convertible to the parameterized VALUE (e.g., a bslstl::TreeNode object).

See Component bslstl_treeiterator


Member Typedef Documentation

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
typedef bsl::bidirectional_iterator_tag bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::iterator_category
template<class VALUE , class NODE , class DIFFERENCE_TYPE >
typedef NcType bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::value_type
template<class VALUE , class NODE , class DIFFERENCE_TYPE >
typedef DIFFERENCE_TYPE bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::difference_type
template<class VALUE , class NODE , class DIFFERENCE_TYPE >
typedef VALUE* bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::pointer
template<class VALUE , class NODE , class DIFFERENCE_TYPE >
typedef VALUE& bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::reference

Constructor & Destructor Documentation

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::TreeIterator (  ) 

Create an uninitialized iterator.

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::TreeIterator ( const bslalg::RbTreeNode node  )  [explicit]

Create an iterator at the specified position. The behavior is undefined unless node is of the parameterized NODE, which is derived from 'bslalgRbTreeNode. Note that this constructor is an implementation detail and is not part of the C++ standard.

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
template<class NON_CONST_ITERATOR >
bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::TreeIterator ( const NON_CONST_ITERATOR &  original,
typename bsl::enable_if< bsl::is_convertible< NON_CONST_ITERATOR, NcIter >::value, int >::type  = 0 
) [inline]
template<class VALUE , class NODE , class DIFFERENCE_TYPE >
bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::TreeIterator ( const TreeIterator< VALUE, NODE, DIFFERENCE_TYPE > &  original  ) 

Create an iterator having the same value as the specified original. Note that this operation is either defined by the constructor taking NcIter (if NcType is the same as VALUE), or generated automatically by the compiler. Also note that this construct cannot be defined explicitly (without using bsls_enableif) to avoid a duplicate declaration when NcType is the same as VALUE.

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::~TreeIterator (  ) 

Destroy this object.


Member Function Documentation

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
TreeIterator& bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::operator= ( const TreeIterator< VALUE, NODE, DIFFERENCE_TYPE > &  rhs  ) 

Assign to this object the value of the specified rhs object, and a return a reference providing modifiable access to this object.

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
TreeIterator& bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::operator++ (  ) 

Move this iterator to the next element in the tree and return a reference providing modifiable access to this iterator. The behavior is undefined unless the iterator refers to an element in the tree.

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
TreeIterator& bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::operator-- (  ) 

Move this iterator to the previous element in the tree and return a reference providing modifiable access to this iterator. The behavior is undefined unless the iterator refers to the past-the-end address or the non-leftmost element in the tree.

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
reference bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::operator* (  )  const

Return a reference providing modifiable access to the value (of the parameterized VALUE) of the element at which this iterator is positioned. The behavior is undefined unless this iterator is at a valid position in the tree.

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
pointer bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::operator-> (  )  const

Return the address of the value (of the parameterized VALUE) of the element at which this iterator is positioned. The behavior is undefined unless this iterator is at a valid position in the tree.

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
const bslalg::RbTreeNode* bslstl::TreeIterator< VALUE, NODE, DIFFERENCE_TYPE >::node (  )  const

Return the address of the non-modifiable tree node at which this iterator is positioned, or 0 if this iterator is not at a valid position in the tree. Note that this method is an implementation detail and is not part of the C++ standard.


Friends And Related Function Documentation

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
friend class TreeIterator [friend]
template<class VALUE , class NODE , class DIFFERENCE_TYPE >
template<class VALUE1 , class VALUE2 , class NODEPTR , class DIFF >
bool operator== ( const TreeIterator< VALUE1, NODEPTR, DIFF > &  ,
const TreeIterator< VALUE2, NODEPTR, DIFF > &   
) [friend]

Return true if the specified lhs and the specified rhs iterators have the same value and false otherwise. Two iterators have the same value if they refer to the same position in the same tree, or if both iterators are at an invalid position in the tree (i.e., the end of the tree, or the default constructed value).

template<class VALUE , class NODE , class DIFFERENCE_TYPE >
template<class VALUE1 , class VALUE2 , class NODEPTR , class DIFF >
bool operator!= ( const TreeIterator< VALUE1, NODEPTR, DIFF > &  ,
const TreeIterator< VALUE2, NODEPTR, DIFF > &   
) [friend]

Return true if the specified lhs and the specified rhs iterators do not have the same value and false otherwise. Two iterators do not have the same value if they differ in either the tree to which they refer or the position in that tree.


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