stx::btree< _Key, _Data, _Value, _Compare, _Traits, _Duplicates >::leaf_node Struct Reference

Extended structure of a leaf node in memory. More...

Inherits stx::btree< _Key, _Data, _Value, _Compare, _Traits, _Duplicates >::node.

List of all members.

Public Member Functions
void	initialize ()
	Set variables to initial values.
bool	isfull () const
	True if the node's slots are full.
bool	isfew () const
	True if few used entries, less than half full.
bool	isunderflow () const
	True if node has too few entries.
Public Attributes
leaf_node *	prevleaf
	Double linked list pointers to traverse the leaves.
leaf_node *	nextleaf
	Double linked list pointers to traverse the leaves.
key_type	slotkey [leafslotmax]
	Keys of children or data pointers.
data_type	slotdata [leafslotmax]
	Array of data.

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Detailed Description

template<typename _Key, typename _Data, typename _Value = std::pair<_Key, _Data>, typename _Compare = std::less<_Key>, typename _Traits = btree_default_map_traits<_Key, _Data>, bool _Duplicates = false>
struct stx::btree< _Key, _Data, _Value, _Compare, _Traits, _Duplicates >::leaf_node

Extended structure of a leaf node in memory.

Contains pairs of keys and data items. Key and data slots are kept in separate arrays, because the key array is traversed very often compared to accessing the data items.

Definition at line 279 of file btree.h.

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Member Function Documentation

template<typename _Key, typename _Data, typename _Value = std::pair<_Key, _Data>, typename _Compare = std::less<_Key>, typename _Traits = btree_default_map_traits<_Key, _Data>, bool _Duplicates = false>

void stx::btree< _Key, _Data, _Value, _Compare, _Traits, _Duplicates >::leaf_node::initialize

(

)

[inline]

Set variables to initial values.

Definition at line 294 of file btree.h.

template<typename _Key, typename _Data, typename _Value = std::pair<_Key, _Data>, typename _Compare = std::less<_Key>, typename _Traits = btree_default_map_traits<_Key, _Data>, bool _Duplicates = false>

bool stx::btree< _Key, _Data, _Value, _Compare, _Traits, _Duplicates >::leaf_node::isfull

(

)

const [inline]

True if the node's slots are full.

Definition at line 301 of file btree.h.

template<typename _Key, typename _Data, typename _Value = std::pair<_Key, _Data>, typename _Compare = std::less<_Key>, typename _Traits = btree_default_map_traits<_Key, _Data>, bool _Duplicates = false>

bool stx::btree< _Key, _Data, _Value, _Compare, _Traits, _Duplicates >::leaf_node::isfew

(

)

const [inline]

True if few used entries, less than half full.

Definition at line 307 of file btree.h.

template<typename _Key, typename _Data, typename _Value = std::pair<_Key, _Data>, typename _Compare = std::less<_Key>, typename _Traits = btree_default_map_traits<_Key, _Data>, bool _Duplicates = false>

bool stx::btree< _Key, _Data, _Value, _Compare, _Traits, _Duplicates >::leaf_node::isunderflow

(

)

const [inline]

True if node has too few entries.

Definition at line 313 of file btree.h.

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Member Data Documentation

template<typename _Key, typename _Data, typename _Value = std::pair<_Key, _Data>, typename _Compare = std::less<_Key>, typename _Traits = btree_default_map_traits<_Key, _Data>, bool _Duplicates = false>

leaf_node* stx::btree< _Key, _Data, _Value, _Compare, _Traits, _Duplicates >::leaf_node::prevleaf

Double linked list pointers to traverse the leaves.

Definition at line 282 of file btree.h.

template<typename _Key, typename _Data, typename _Value = std::pair<_Key, _Data>, typename _Compare = std::less<_Key>, typename _Traits = btree_default_map_traits<_Key, _Data>, bool _Duplicates = false>

leaf_node* stx::btree< _Key, _Data, _Value, _Compare, _Traits, _Duplicates >::leaf_node::nextleaf

Double linked list pointers to traverse the leaves.

Definition at line 285 of file btree.h.

template<typename _Key, typename _Data, typename _Value = std::pair<_Key, _Data>, typename _Compare = std::less<_Key>, typename _Traits = btree_default_map_traits<_Key, _Data>, bool _Duplicates = false>

key_type stx::btree< _Key, _Data, _Value, _Compare, _Traits, _Duplicates >::leaf_node::slotkey[leafslotmax]

Keys of children or data pointers.

Definition at line 288 of file btree.h.

template<typename _Key, typename _Data, typename _Value = std::pair<_Key, _Data>, typename _Compare = std::less<_Key>, typename _Traits = btree_default_map_traits<_Key, _Data>, bool _Duplicates = false>

data_type stx::btree< _Key, _Data, _Value, _Compare, _Traits, _Duplicates >::leaf_node::slotdata[leafslotmax]

Array of data.

Definition at line 291 of file btree.h.

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

• stx/btree.h

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