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Added support for configurable tree-based associative containers. In addition to RB trees, AVL, Scapegoat and Splay trees are experimentally supported.

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Ion Gaztañaga committed 2014-01-03 13:26:57 +01:00
1 parent 2489010881
commit 01486761a6
21 files changed
+1193 -155
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include/boost/container/map.hpp
+96 -34
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@@ -39,22 +39,26 @@
namespace boost {
namespace container {
#ifdef BOOST_CONTAINER_DOXYGEN_INVOKED
//! A map is a kind of associative container that supports unique keys (contains at
//! most one of each key value) and provides for fast retrieval of values of another
//! type T based on the keys. The map class supports bidirectional iterators.
//!
//! A map satisfies all of the requirements of a container and of a reversible
//! container and of an associative container. For a
//! map<Key,T> the key_type is Key and the value_type is std::pair<const Key,T>.
//! container and of an associative container. The <code>value_type</code> stored
//! by this container is the value_type is std::pair<const Key, T>.
//!
//! Compare is the ordering function for Keys (e.g. <i>std::less<Key></i>).
//!
//! Allocator is the allocator to allocate the value_types
//! (e.g. <i>allocator< std::pair<const Key, T> > </i>).
#ifdef BOOST_CONTAINER_DOXYGEN_INVOKED
template <class Key, class T, class Compare = std::less<Key>, class Allocator = std::allocator< std::pair< const Key, T> > >
//! \tparam Key is the key_type of the map
//! \tparam Value is the <code>mapped_type</code>
//! \tparam Compare is the ordering function for Keys (e.g. <i>std::less<Key></i>).
//! \tparam Allocator is the allocator to allocate the <code>value_type</code>s
//! (e.g. <i>allocator< std::pair<const Key, T> > </i>).
//! \tparam MapOptions is an packed option type generated using using boost::container::tree_assoc_options.
template < class Key, class T, class Compare = std::less<Key>
, class Allocator = std::allocator< std::pair< const Key, T> >, class MapOptions = tree_assoc_defaults >
#else
template <class Key, class T, class Compare, class Allocator, tree_type tree_type_value>
template <class Key, class T, class Compare, class Allocator, class MapOptions>
#endif
class map
{
@@ -64,7 +68,7 @@ class map
typedef std::pair<const Key, T> value_type_impl;
typedef container_detail::tree
<Key, value_type_impl, container_detail::select1st<value_type_impl>, Compare, Allocator, tree_type_value> tree_t;
<Key, value_type_impl, container_detail::select1st<value_type_impl>, Compare, Allocator, MapOptions> tree_t;
typedef container_detail::pair <Key, T> movable_value_type_impl;
typedef container_detail::tree_value_compare
< Key, value_type_impl, Compare, container_detail::select1st<value_type_impl>
@@ -744,26 +748,53 @@ class map
std::pair<const_iterator,const_iterator> equal_range(const key_type& x) const
{ return m_tree.equal_range(x); }
//! <b>Effects</b>: Rebalances the tree. It's a no-op for Red-Black and AVL trees.
//!
//! <b>Complexity</b>: Linear
void rebalance()
{ return m_tree.rebalance(); }
//! <b>Effects</b>: Returns true if x and y are equal
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator==(const map& x, const map& y)
{ return x.m_tree == y.m_tree; }
friend bool operator<(const map& x, const map& y)
{ return x.m_tree < y.m_tree; }
{ return x.size() == y.size() && std::equal(x.begin(), x.end(), y.begin()); }
//! <b>Effects</b>: Returns true if x and y are unequal
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator!=(const map& x, const map& y)
{ return !(x == y); }
{ return !(x == y); }
//! <b>Effects</b>: Returns true if x is less than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator<(const map& x, const map& y)
{ return std::lexicographical_compare(x.begin(), x.end(), y.begin(), y.end()); }
//! <b>Effects</b>: Returns true if x is greater than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator>(const map& x, const map& y)
{ return y < x; }
{ return y < x; }
//! <b>Effects</b>: Returns true if x is equal or less than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator<=(const map& x, const map& y)
{ return !(y < x); }
{ return !(y < x); }
//! <b>Effects</b>: Returns true if x is equal or greater than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator>=(const map& x, const map& y)
{ return !(x < y); }
{ return !(x < y); }
//! <b>Effects</b>: x.swap(y)
//!
//! <b>Complexity</b>: Constant.
friend void swap(map& x, map& y)
{ x.swap(y); }
{ x.swap(y); }
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
private:
@@ -814,23 +845,27 @@ namespace container {
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
#ifdef BOOST_CONTAINER_DOXYGEN_INVOKED
//! A multimap is a kind of associative container that supports equivalent keys
//! (possibly containing multiple copies of the same key value) and provides for
//! fast retrieval of values of another type T based on the keys. The multimap class
//! supports bidirectional iterators.
//!
//! A multimap satisfies all of the requirements of a container and of a reversible
//! container and of an associative container. For a
//! map<Key,T> the key_type is Key and the value_type is std::pair<const Key,T>.
//! container and of an associative container. The <code>value_type</code> stored
//! by this container is the value_type is std::pair<const Key, T>.
//!
//! Compare is the ordering function for Keys (e.g. <i>std::less<Key></i>).
//!
//! Allocator is the allocator to allocate the value_types
//!(e.g. <i>allocator< std::pair<<b>const</b> Key, T> ></i>).
#ifdef BOOST_CONTAINER_DOXYGEN_INVOKED
template <class Key, class T, class Compare = std::less<Key>, class Allocator = std::allocator< std::pair< const Key, T> > >
//! \tparam Key is the key_type of the map
//! \tparam Value is the <code>mapped_type</code>
//! \tparam Compare is the ordering function for Keys (e.g. <i>std::less<Key></i>).
//! \tparam Allocator is the allocator to allocate the <code>value_type</code>s
//! (e.g. <i>allocator< std::pair<const Key, T> > </i>).
//! \tparam MultiMapOptions is an packed option type generated using using boost::container::tree_assoc_options.
template < class Key, class T, class Compare = std::less<Key>
, class Allocator = std::allocator< std::pair< const Key, T> >, class MultiMapOptions = tree_assoc_defaults>
#else
template <class Key, class T, class Compare, class Allocator, tree_type tree_type_value>
template <class Key, class T, class Compare, class Allocator, class MultiMapOptions>
#endif
class multimap
{
@@ -840,7 +875,7 @@ class multimap
typedef std::pair<const Key, T> value_type_impl;
typedef container_detail::tree
<Key, value_type_impl, container_detail::select1st<value_type_impl>, Compare, Allocator, tree_type_value> tree_t;
<Key, value_type_impl, container_detail::select1st<value_type_impl>, Compare, Allocator, MultiMapOptions> tree_t;
typedef container_detail::pair <Key, T> movable_value_type_impl;
typedef container_detail::tree_value_compare
< Key, value_type_impl, Compare, container_detail::select1st<value_type_impl>
@@ -1424,24 +1459,51 @@ class multimap
std::pair<const_iterator,const_iterator> equal_range(const key_type& x) const
{ return m_tree.equal_range(x); }
//! <b>Effects</b>: Rebalances the tree. It's a no-op for Red-Black and AVL trees.
//!
//! <b>Complexity</b>: Linear
void rebalance()
{ return m_tree.rebalance(); }
//! <b>Effects</b>: Returns true if x and y are equal
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator==(const multimap& x, const multimap& y)
{ return x.m_tree == y.m_tree; }
friend bool operator<(const multimap& x, const multimap& y)
{ return x.m_tree < y.m_tree; }
{ return x.size() == y.size() && std::equal(x.begin(), x.end(), y.begin()); }
//! <b>Effects</b>: Returns true if x and y are unequal
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator!=(const multimap& x, const multimap& y)
{ return !(x == y); }
{ return !(x == y); }
//! <b>Effects</b>: Returns true if x is less than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator<(const multimap& x, const multimap& y)
{ return std::lexicographical_compare(x.begin(), x.end(), y.begin(), y.end()); }
//! <b>Effects</b>: Returns true if x is greater than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator>(const multimap& x, const multimap& y)
{ return y < x; }
//! <b>Effects</b>: Returns true if x is equal or less than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator<=(const multimap& x, const multimap& y)
{ return !(y < x); }
//! <b>Effects</b>: Returns true if x is equal or greater than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator>=(const multimap& x, const multimap& y)
{ return !(x < y); }
//! <b>Effects</b>: x.swap(y)
//!
//! <b>Complexity</b>: Constant.
friend void swap(multimap& x, multimap& y)
{ x.swap(y); }
};