--- /dev/null
+/*
+ *
+ *
+ * Copyright (c) 1994
+ * Hewlett-Packard Company
+ *
+ * Copyright (c) 1996,1997
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Copyright (c) 1997
+ * Moscow Center for SPARC Technology
+ *
+ * Copyright (c) 1999
+ * Boris Fomitchev
+ *
+ * This material is provided "as is", with absolutely no warranty expressed
+ * or implied. Any use is at your own risk.
+ *
+ * Permission to use or copy this software for any purpose is hereby granted
+ * without fee, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
+ *
+ * Modified CRP 7/10/00 for improved conformance / efficiency on insert_unique /
+ * insert_equal with valid hint -- efficiency is improved all around, and it is
+ * should now be standard conforming for complexity on insert point immediately
+ * after hint (amortized constant time).
+ *
+ */
+#ifndef _STLP_TREE_C
+#define _STLP_TREE_C
+
+#ifndef _STLP_INTERNAL_TREE_H
+# include <stl/_tree.h>
+#endif
+
+#if defined (_STLP_DEBUG)
+# define _Rb_tree _STLP_NON_DBG_NAME(Rb_tree)
+#endif
+
+// fbp: these defines are for outline methods definitions.
+// needed for definitions to be portable. Should not be used in method bodies.
+#if defined (_STLP_NESTED_TYPE_PARAM_BUG)
+# define __iterator__ _Rb_tree_iterator<_Value, _STLP_HEADER_TYPENAME _Traits::_NonConstTraits>
+# define __size_type__ size_t
+# define iterator __iterator__
+#else
+# define __iterator__ _STLP_TYPENAME_ON_RETURN_TYPE _Rb_tree<_Key, _Compare, _Value, _KeyOfValue, _Traits, _Alloc>::iterator
+# define __size_type__ _STLP_TYPENAME_ON_RETURN_TYPE _Rb_tree<_Key, _Compare, _Value, _KeyOfValue, _Traits, _Alloc>::size_type
+#endif
+
+_STLP_BEGIN_NAMESPACE
+
+_STLP_MOVE_TO_PRIV_NAMESPACE
+
+#if defined (_STLP_EXPOSE_GLOBALS_IMPLEMENTATION)
+
+template <class _Dummy> void _STLP_CALL
+_Rb_global<_Dummy>::_Rotate_left(_Rb_tree_node_base* __x,
+ _Rb_tree_node_base*& __root) {
+ _Rb_tree_node_base* __y = __x->_M_right;
+ __x->_M_right = __y->_M_left;
+ if (__y->_M_left != 0)
+ __y->_M_left->_M_parent = __x;
+ __y->_M_parent = __x->_M_parent;
+
+ if (__x == __root)
+ __root = __y;
+ else if (__x == __x->_M_parent->_M_left)
+ __x->_M_parent->_M_left = __y;
+ else
+ __x->_M_parent->_M_right = __y;
+ __y->_M_left = __x;
+ __x->_M_parent = __y;
+}
+
+template <class _Dummy> void _STLP_CALL
+_Rb_global<_Dummy>::_Rotate_right(_Rb_tree_node_base* __x,
+ _Rb_tree_node_base*& __root) {
+ _Rb_tree_node_base* __y = __x->_M_left;
+ __x->_M_left = __y->_M_right;
+ if (__y->_M_right != 0)
+ __y->_M_right->_M_parent = __x;
+ __y->_M_parent = __x->_M_parent;
+
+ if (__x == __root)
+ __root = __y;
+ else if (__x == __x->_M_parent->_M_right)
+ __x->_M_parent->_M_right = __y;
+ else
+ __x->_M_parent->_M_left = __y;
+ __y->_M_right = __x;
+ __x->_M_parent = __y;
+}
+
+template <class _Dummy> void _STLP_CALL
+_Rb_global<_Dummy>::_Rebalance(_Rb_tree_node_base* __x,
+ _Rb_tree_node_base*& __root) {
+ __x->_M_color = _S_rb_tree_red;
+ while (__x != __root && __x->_M_parent->_M_color == _S_rb_tree_red) {
+ if (__x->_M_parent == __x->_M_parent->_M_parent->_M_left) {
+ _Rb_tree_node_base* __y = __x->_M_parent->_M_parent->_M_right;
+ if (__y && __y->_M_color == _S_rb_tree_red) {
+ __x->_M_parent->_M_color = _S_rb_tree_black;
+ __y->_M_color = _S_rb_tree_black;
+ __x->_M_parent->_M_parent->_M_color = _S_rb_tree_red;
+ __x = __x->_M_parent->_M_parent;
+ }
+ else {
+ if (__x == __x->_M_parent->_M_right) {
+ __x = __x->_M_parent;
+ _Rotate_left(__x, __root);
+ }
+ __x->_M_parent->_M_color = _S_rb_tree_black;
+ __x->_M_parent->_M_parent->_M_color = _S_rb_tree_red;
+ _Rotate_right(__x->_M_parent->_M_parent, __root);
+ }
+ }
+ else {
+ _Rb_tree_node_base* __y = __x->_M_parent->_M_parent->_M_left;
+ if (__y && __y->_M_color == _S_rb_tree_red) {
+ __x->_M_parent->_M_color = _S_rb_tree_black;
+ __y->_M_color = _S_rb_tree_black;
+ __x->_M_parent->_M_parent->_M_color = _S_rb_tree_red;
+ __x = __x->_M_parent->_M_parent;
+ }
+ else {
+ if (__x == __x->_M_parent->_M_left) {
+ __x = __x->_M_parent;
+ _Rotate_right(__x, __root);
+ }
+ __x->_M_parent->_M_color = _S_rb_tree_black;
+ __x->_M_parent->_M_parent->_M_color = _S_rb_tree_red;
+ _Rotate_left(__x->_M_parent->_M_parent, __root);
+ }
+ }
+ }
+ __root->_M_color = _S_rb_tree_black;
+}
+
+template <class _Dummy> _Rb_tree_node_base* _STLP_CALL
+_Rb_global<_Dummy>::_Rebalance_for_erase(_Rb_tree_node_base* __z,
+ _Rb_tree_node_base*& __root,
+ _Rb_tree_node_base*& __leftmost,
+ _Rb_tree_node_base*& __rightmost) {
+ _Rb_tree_node_base* __y = __z;
+ _Rb_tree_node_base* __x;
+ _Rb_tree_node_base* __x_parent;
+
+ if (__y->_M_left == 0) // __z has at most one non-null child. y == z.
+ __x = __y->_M_right; // __x might be null.
+ else {
+ if (__y->_M_right == 0) // __z has exactly one non-null child. y == z.
+ __x = __y->_M_left; // __x is not null.
+ else { // __z has two non-null children. Set __y to
+ __y = _Rb_tree_node_base::_S_minimum(__y->_M_right); // __z's successor. __x might be null.
+ __x = __y->_M_right;
+ }
+ }
+
+ if (__y != __z) { // relink y in place of z. y is z's successor
+ __z->_M_left->_M_parent = __y;
+ __y->_M_left = __z->_M_left;
+ if (__y != __z->_M_right) {
+ __x_parent = __y->_M_parent;
+ if (__x) __x->_M_parent = __y->_M_parent;
+ __y->_M_parent->_M_left = __x; // __y must be a child of _M_left
+ __y->_M_right = __z->_M_right;
+ __z->_M_right->_M_parent = __y;
+ }
+ else
+ __x_parent = __y;
+ if (__root == __z)
+ __root = __y;
+ else if (__z->_M_parent->_M_left == __z)
+ __z->_M_parent->_M_left = __y;
+ else
+ __z->_M_parent->_M_right = __y;
+ __y->_M_parent = __z->_M_parent;
+ _STLP_STD::swap(__y->_M_color, __z->_M_color);
+ __y = __z;
+ // __y now points to node to be actually deleted
+ }
+ else { // __y == __z
+ __x_parent = __y->_M_parent;
+ if (__x) __x->_M_parent = __y->_M_parent;
+ if (__root == __z)
+ __root = __x;
+ else {
+ if (__z->_M_parent->_M_left == __z)
+ __z->_M_parent->_M_left = __x;
+ else
+ __z->_M_parent->_M_right = __x;
+ }
+
+ if (__leftmost == __z) {
+ if (__z->_M_right == 0) // __z->_M_left must be null also
+ __leftmost = __z->_M_parent;
+ // makes __leftmost == _M_header if __z == __root
+ else
+ __leftmost = _Rb_tree_node_base::_S_minimum(__x);
+ }
+ if (__rightmost == __z) {
+ if (__z->_M_left == 0) // __z->_M_right must be null also
+ __rightmost = __z->_M_parent;
+ // makes __rightmost == _M_header if __z == __root
+ else // __x == __z->_M_left
+ __rightmost = _Rb_tree_node_base::_S_maximum(__x);
+ }
+ }
+
+ if (__y->_M_color != _S_rb_tree_red) {
+ while (__x != __root && (__x == 0 || __x->_M_color == _S_rb_tree_black))
+ if (__x == __x_parent->_M_left) {
+ _Rb_tree_node_base* __w = __x_parent->_M_right;
+ if (__w->_M_color == _S_rb_tree_red) {
+ __w->_M_color = _S_rb_tree_black;
+ __x_parent->_M_color = _S_rb_tree_red;
+ _Rotate_left(__x_parent, __root);
+ __w = __x_parent->_M_right;
+ }
+ if ((__w->_M_left == 0 ||
+ __w->_M_left->_M_color == _S_rb_tree_black) && (__w->_M_right == 0 ||
+ __w->_M_right->_M_color == _S_rb_tree_black)) {
+ __w->_M_color = _S_rb_tree_red;
+ __x = __x_parent;
+ __x_parent = __x_parent->_M_parent;
+ } else {
+ if (__w->_M_right == 0 ||
+ __w->_M_right->_M_color == _S_rb_tree_black) {
+ if (__w->_M_left) __w->_M_left->_M_color = _S_rb_tree_black;
+ __w->_M_color = _S_rb_tree_red;
+ _Rotate_right(__w, __root);
+ __w = __x_parent->_M_right;
+ }
+ __w->_M_color = __x_parent->_M_color;
+ __x_parent->_M_color = _S_rb_tree_black;
+ if (__w->_M_right) __w->_M_right->_M_color = _S_rb_tree_black;
+ _Rotate_left(__x_parent, __root);
+ break;
+ }
+ } else { // same as above, with _M_right <-> _M_left.
+ _Rb_tree_node_base* __w = __x_parent->_M_left;
+ if (__w->_M_color == _S_rb_tree_red) {
+ __w->_M_color = _S_rb_tree_black;
+ __x_parent->_M_color = _S_rb_tree_red;
+ _Rotate_right(__x_parent, __root);
+ __w = __x_parent->_M_left;
+ }
+ if ((__w->_M_right == 0 ||
+ __w->_M_right->_M_color == _S_rb_tree_black) && (__w->_M_left == 0 ||
+ __w->_M_left->_M_color == _S_rb_tree_black)) {
+ __w->_M_color = _S_rb_tree_red;
+ __x = __x_parent;
+ __x_parent = __x_parent->_M_parent;
+ } else {
+ if (__w->_M_left == 0 ||
+ __w->_M_left->_M_color == _S_rb_tree_black) {
+ if (__w->_M_right) __w->_M_right->_M_color = _S_rb_tree_black;
+ __w->_M_color = _S_rb_tree_red;
+ _Rotate_left(__w, __root);
+ __w = __x_parent->_M_left;
+ }
+ __w->_M_color = __x_parent->_M_color;
+ __x_parent->_M_color = _S_rb_tree_black;
+ if (__w->_M_left) __w->_M_left->_M_color = _S_rb_tree_black;
+ _Rotate_right(__x_parent, __root);
+ break;
+ }
+ }
+ if (__x) __x->_M_color = _S_rb_tree_black;
+ }
+ return __y;
+}
+
+template <class _Dummy> _Rb_tree_node_base* _STLP_CALL
+_Rb_global<_Dummy>::_M_decrement(_Rb_tree_node_base* _M_node) {
+ if (_M_node->_M_color == _S_rb_tree_red && _M_node->_M_parent->_M_parent == _M_node)
+ _M_node = _M_node->_M_right;
+ else if (_M_node->_M_left != 0) {
+ _M_node = _Rb_tree_node_base::_S_maximum(_M_node->_M_left);
+ }
+ else {
+ _Base_ptr __y = _M_node->_M_parent;
+ while (_M_node == __y->_M_left) {
+ _M_node = __y;
+ __y = __y->_M_parent;
+ }
+ _M_node = __y;
+ }
+ return _M_node;
+}
+
+template <class _Dummy> _Rb_tree_node_base* _STLP_CALL
+_Rb_global<_Dummy>::_M_increment(_Rb_tree_node_base* _M_node) {
+ if (_M_node->_M_right != 0) {
+ _M_node = _Rb_tree_node_base::_S_minimum(_M_node->_M_right);
+ }
+ else {
+ _Base_ptr __y = _M_node->_M_parent;
+ while (_M_node == __y->_M_right) {
+ _M_node = __y;
+ __y = __y->_M_parent;
+ }
+ // check special case: This is necessary if _M_node is the
+ // _M_head and the tree contains only a single node __y. In
+ // that case parent, left and right all point to __y!
+ if (_M_node->_M_right != __y)
+ _M_node = __y;
+ }
+ return _M_node;
+}
+
+#endif /* _STLP_EXPOSE_GLOBALS_IMPLEMENTATION */
+
+
+template <class _Key, class _Compare,
+ class _Value, class _KeyOfValue, class _Traits, class _Alloc>
+_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc>&
+_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc> ::operator=(
+ const _Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc>& __x) {
+ if (this != &__x) {
+ // Note that _Key may be a constant type.
+ clear();
+ _M_node_count = 0;
+ _M_key_compare = __x._M_key_compare;
+ if (__x._M_root() == 0) {
+ _M_root() = 0;
+ _M_leftmost() = &this->_M_header._M_data;
+ _M_rightmost() = &this->_M_header._M_data;
+ }
+ else {
+ _M_root() = _M_copy(__x._M_root(), &this->_M_header._M_data);
+ _M_leftmost() = _S_minimum(_M_root());
+ _M_rightmost() = _S_maximum(_M_root());
+ _M_node_count = __x._M_node_count;
+ }
+ }
+ return *this;
+}
+
+// CRP 7/10/00 inserted argument __on_right, which is another hint (meant to
+// act like __on_left and ignore a portion of the if conditions -- specify
+// __on_right != 0 to bypass comparison as false or __on_left != 0 to bypass
+// comparison as true)
+template <class _Key, class _Compare,
+ class _Value, class _KeyOfValue, class _Traits, class _Alloc>
+__iterator__
+_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc> ::_M_insert(_Rb_tree_node_base * __parent,
+ const _Value& __val,
+ _Rb_tree_node_base * __on_left,
+ _Rb_tree_node_base * __on_right) {
+ // We do not create the node here as, depending on tests, we might call
+ // _M_key_compare that can throw an exception.
+ _Base_ptr __new_node;
+
+ if ( __parent == &this->_M_header._M_data ) {
+ __new_node = _M_create_node(__val);
+ _S_left(__parent) = __new_node; // also makes _M_leftmost() = __new_node
+ _M_root() = __new_node;
+ _M_rightmost() = __new_node;
+ }
+ else if ( __on_right == 0 && // If __on_right != 0, the remainder fails to false
+ ( __on_left != 0 || // If __on_left != 0, the remainder succeeds to true
+ _M_key_compare( _KeyOfValue()(__val), _S_key(__parent) ) ) ) {
+ __new_node = _M_create_node(__val);
+ _S_left(__parent) = __new_node;
+ if (__parent == _M_leftmost())
+ _M_leftmost() = __new_node; // maintain _M_leftmost() pointing to min node
+ }
+ else {
+ __new_node = _M_create_node(__val);
+ _S_right(__parent) = __new_node;
+ if (__parent == _M_rightmost())
+ _M_rightmost() = __new_node; // maintain _M_rightmost() pointing to max node
+ }
+ _S_parent(__new_node) = __parent;
+ _Rb_global_inst::_Rebalance(__new_node, this->_M_header._M_data._M_parent);
+ ++_M_node_count;
+ return iterator(__new_node);
+}
+
+template <class _Key, class _Compare,
+ class _Value, class _KeyOfValue, class _Traits, class _Alloc>
+__iterator__
+_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc> ::insert_equal(const _Value& __val) {
+ _Base_ptr __y = &this->_M_header._M_data;
+ _Base_ptr __x = _M_root();
+ while (__x != 0) {
+ __y = __x;
+ if (_M_key_compare(_KeyOfValue()(__val), _S_key(__x))) {
+ __x = _S_left(__x);
+ }
+ else
+ __x = _S_right(__x);
+ }
+ return _M_insert(__y, __val, __x);
+}
+
+
+template <class _Key, class _Compare,
+ class _Value, class _KeyOfValue, class _Traits, class _Alloc>
+pair<__iterator__, bool>
+_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc> ::insert_unique(const _Value& __val) {
+ _Base_ptr __y = &this->_M_header._M_data;
+ _Base_ptr __x = _M_root();
+ bool __comp = true;
+ while (__x != 0) {
+ __y = __x;
+ __comp = _M_key_compare(_KeyOfValue()(__val), _S_key(__x));
+ __x = __comp ? _S_left(__x) : _S_right(__x);
+ }
+ iterator __j = iterator(__y);
+ if (__comp) {
+ if (__j == begin())
+ return pair<iterator,bool>(_M_insert(__y, __val, /* __x*/ __y), true);
+ else
+ --__j;
+ }
+ if (_M_key_compare(_S_key(__j._M_node), _KeyOfValue()(__val))) {
+ return pair<iterator,bool>(_M_insert(__y, __val, __x), true);
+ }
+ return pair<iterator,bool>(__j, false);
+}
+
+// Modifications CRP 7/10/00 as noted to improve conformance and
+// efficiency.
+template <class _Key, class _Compare,
+ class _Value, class _KeyOfValue, class _Traits, class _Alloc>
+__iterator__
+_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc> ::insert_unique(iterator __position,
+ const _Value& __val) {
+ if (__position._M_node == this->_M_header._M_data._M_left) { // begin()
+
+ // if the container is empty, fall back on insert_unique.
+ if (empty())
+ return insert_unique(__val).first;
+
+ if (_M_key_compare(_KeyOfValue()(__val), _S_key(__position._M_node))) {
+ return _M_insert(__position._M_node, __val, __position._M_node);
+ }
+ // first argument just needs to be non-null
+ else {
+ bool __comp_pos_v = _M_key_compare( _S_key(__position._M_node), _KeyOfValue()(__val) );
+
+ if (__comp_pos_v == false) // compare > and compare < both false so compare equal
+ return __position;
+ //Below __comp_pos_v == true
+
+ // Standard-conformance - does the insertion point fall immediately AFTER
+ // the hint?
+ iterator __after = __position;
+ ++__after;
+
+ // Check for only one member -- in that case, __position points to itself,
+ // and attempting to increment will cause an infinite loop.
+ if (__after._M_node == &this->_M_header._M_data)
+ // Check guarantees exactly one member, so comparison was already
+ // performed and we know the result; skip repeating it in _M_insert
+ // by specifying a non-zero fourth argument.
+ return _M_insert(__position._M_node, __val, 0, __position._M_node);
+
+ // All other cases:
+
+ // Optimization to catch insert-equivalent -- save comparison results,
+ // and we get this for free.
+ if (_M_key_compare( _KeyOfValue()(__val), _S_key(__after._M_node) )) {
+ if (_S_right(__position._M_node) == 0)
+ return _M_insert(__position._M_node, __val, 0, __position._M_node);
+ else
+ return _M_insert(__after._M_node, __val, __after._M_node);
+ }
+ else {
+ return insert_unique(__val).first;
+ }
+ }
+ }
+ else if (__position._M_node == &this->_M_header._M_data) { // end()
+ if (_M_key_compare(_S_key(_M_rightmost()), _KeyOfValue()(__val))) {
+ // pass along to _M_insert that it can skip comparing
+ // v, Key ; since compare Key, v was true, compare v, Key must be false.
+ return _M_insert(_M_rightmost(), __val, 0, __position._M_node); // Last argument only needs to be non-null
+ }
+ else
+ return insert_unique(__val).first;
+ }
+ else {
+ iterator __before = __position;
+ --__before;
+
+ bool __comp_v_pos = _M_key_compare(_KeyOfValue()(__val), _S_key(__position._M_node));
+
+ if (__comp_v_pos
+ && _M_key_compare( _S_key(__before._M_node), _KeyOfValue()(__val) )) {
+
+ if (_S_right(__before._M_node) == 0)
+ return _M_insert(__before._M_node, __val, 0, __before._M_node); // Last argument only needs to be non-null
+ else
+ return _M_insert(__position._M_node, __val, __position._M_node);
+ // first argument just needs to be non-null
+ }
+ else {
+ // Does the insertion point fall immediately AFTER the hint?
+ iterator __after = __position;
+ ++__after;
+ // Optimization to catch equivalent cases and avoid unnecessary comparisons
+ bool __comp_pos_v = !__comp_v_pos; // Stored this result earlier
+ // If the earlier comparison was true, this comparison doesn't need to be
+ // performed because it must be false. However, if the earlier comparison
+ // was false, we need to perform this one because in the equal case, both will
+ // be false.
+ if (!__comp_v_pos) {
+ __comp_pos_v = _M_key_compare(_S_key(__position._M_node), _KeyOfValue()(__val));
+ }
+
+ if ( (!__comp_v_pos) // comp_v_pos true implies comp_v_pos false
+ && __comp_pos_v
+ && (__after._M_node == &this->_M_header._M_data ||
+ _M_key_compare( _KeyOfValue()(__val), _S_key(__after._M_node) ))) {
+ if (_S_right(__position._M_node) == 0)
+ return _M_insert(__position._M_node, __val, 0, __position._M_node);
+ else
+ return _M_insert(__after._M_node, __val, __after._M_node);
+ } else {
+ // Test for equivalent case
+ if (__comp_v_pos == __comp_pos_v)
+ return __position;
+ else
+ return insert_unique(__val).first;
+ }
+ }
+ }
+}
+
+template <class _Key, class _Compare,
+ class _Value, class _KeyOfValue, class _Traits, class _Alloc>
+__iterator__
+_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc> ::insert_equal(iterator __position,
+ const _Value& __val) {
+ if (__position._M_node == this->_M_header._M_data._M_left) { // begin()
+
+ // Check for zero members
+ if (size() <= 0)
+ return insert_equal(__val);
+
+ if (!_M_key_compare(_S_key(__position._M_node), _KeyOfValue()(__val)))
+ return _M_insert(__position._M_node, __val, __position._M_node);
+ else {
+ // Check for only one member
+ if (__position._M_node->_M_left == __position._M_node)
+ // Unlike insert_unique, can't avoid doing a comparison here.
+ return _M_insert(__position._M_node, __val);
+
+ // All other cases:
+ // Standard-conformance - does the insertion point fall immediately AFTER
+ // the hint?
+ iterator __after = __position;
+ ++__after;
+
+ // Already know that compare(pos, v) must be true!
+ // Therefore, we want to know if compare(after, v) is false.
+ // (i.e., we now pos < v, now we want to know if v <= after)
+ // If not, invalid hint.
+ if ( __after._M_node == &this->_M_header._M_data ||
+ !_M_key_compare( _S_key(__after._M_node), _KeyOfValue()(__val) ) ) {
+ if (_S_right(__position._M_node) == 0)
+ return _M_insert(__position._M_node, __val, 0, __position._M_node);
+ else
+ return _M_insert(__after._M_node, __val, __after._M_node);
+ }
+ else { // Invalid hint
+ return insert_equal(__val);
+ }
+ }
+ }
+ else if (__position._M_node == &this->_M_header._M_data) { // end()
+ if (!_M_key_compare(_KeyOfValue()(__val), _S_key(_M_rightmost())))
+ return _M_insert(_M_rightmost(), __val, 0, __position._M_node); // Last argument only needs to be non-null
+ else {
+ return insert_equal(__val);
+ }
+ }
+ else {
+ iterator __before = __position;
+ --__before;
+ // store the result of the comparison between pos and v so
+ // that we don't have to do it again later. Note that this reverses the shortcut
+ // on the if, possibly harming efficiency in comparisons; I think the harm will
+ // be negligible, and to do what I want to do (save the result of a comparison so
+ // that it can be re-used) there is no alternative. Test here is for before <= v <= pos.
+ bool __comp_pos_v = _M_key_compare(_S_key(__position._M_node), _KeyOfValue()(__val));
+ if (!__comp_pos_v &&
+ !_M_key_compare(_KeyOfValue()(__val), _S_key(__before._M_node))) {
+ if (_S_right(__before._M_node) == 0)
+ return _M_insert(__before._M_node, __val, 0, __before._M_node); // Last argument only needs to be non-null
+ else
+ return _M_insert(__position._M_node, __val, __position._M_node);
+ }
+ else {
+ // Does the insertion point fall immediately AFTER the hint?
+ // Test for pos < v <= after
+ iterator __after = __position;
+ ++__after;
+
+ if (__comp_pos_v &&
+ ( __after._M_node == &this->_M_header._M_data ||
+ !_M_key_compare( _S_key(__after._M_node), _KeyOfValue()(__val) ) ) ) {
+ if (_S_right(__position._M_node) == 0)
+ return _M_insert(__position._M_node, __val, 0, __position._M_node);
+ else
+ return _M_insert(__after._M_node, __val, __after._M_node);
+ }
+ else { // Invalid hint
+ return insert_equal(__val);
+ }
+ }
+ }
+}
+
+template <class _Key, class _Compare,
+ class _Value, class _KeyOfValue, class _Traits, class _Alloc>
+_Rb_tree_node_base*
+_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc> ::_M_copy(_Rb_tree_node_base* __x,
+ _Rb_tree_node_base* __p) {
+ // structural copy. __x and __p must be non-null.
+ _Base_ptr __top = _M_clone_node(__x);
+ _S_parent(__top) = __p;
+
+ _STLP_TRY {
+ if (_S_right(__x))
+ _S_right(__top) = _M_copy(_S_right(__x), __top);
+ __p = __top;
+ __x = _S_left(__x);
+
+ while (__x != 0) {
+ _Base_ptr __y = _M_clone_node(__x);
+ _S_left(__p) = __y;
+ _S_parent(__y) = __p;
+ if (_S_right(__x))
+ _S_right(__y) = _M_copy(_S_right(__x), __y);
+ __p = __y;
+ __x = _S_left(__x);
+ }
+ }
+ _STLP_UNWIND(_M_erase(__top))
+
+ return __top;
+}
+
+// this has to stay out-of-line : it's recursive
+template <class _Key, class _Compare,
+ class _Value, class _KeyOfValue, class _Traits, class _Alloc>
+void
+_Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc>::_M_erase(_Rb_tree_node_base *__x) {
+ // erase without rebalancing
+ while (__x != 0) {
+ _M_erase(_S_right(__x));
+ _Base_ptr __y = _S_left(__x);
+ _STLP_STD::_Destroy(&_S_value(__x));
+ this->_M_header.deallocate(__STATIC_CAST(_Link_type, __x),1);
+ __x = __y;
+ }
+}
+
+#if defined (_STLP_DEBUG)
+inline int
+__black_count(_Rb_tree_node_base* __node, _Rb_tree_node_base* __root) {
+ if (__node == 0)
+ return 0;
+ else {
+ int __bc = __node->_M_color == _S_rb_tree_black ? 1 : 0;
+ if (__node == __root)
+ return __bc;
+ else
+ return __bc + __black_count(__node->_M_parent, __root);
+ }
+}
+
+template <class _Key, class _Compare,
+ class _Value, class _KeyOfValue, class _Traits, class _Alloc>
+bool _Rb_tree<_Key,_Compare,_Value,_KeyOfValue,_Traits,_Alloc>::__rb_verify() const {
+ if (_M_node_count == 0 || begin() == end())
+ return ((_M_node_count == 0) &&
+ (begin() == end()) &&
+ (this->_M_header._M_data._M_left == &this->_M_header._M_data) &&
+ (this->_M_header._M_data._M_right == &this->_M_header._M_data));
+
+ int __len = __black_count(_M_leftmost(), _M_root());
+ for (const_iterator __it = begin(); __it != end(); ++__it) {
+ _Base_ptr __x = __it._M_node;
+ _Base_ptr __L = _S_left(__x);
+ _Base_ptr __R = _S_right(__x);
+
+ if (__x->_M_color == _S_rb_tree_red)
+ if ((__L && __L->_M_color == _S_rb_tree_red) ||
+ (__R && __R->_M_color == _S_rb_tree_red))
+ return false;
+
+ if (__L && _M_key_compare(_S_key(__x), _S_key(__L)))
+ return false;
+ if (__R && _M_key_compare(_S_key(__R), _S_key(__x)))
+ return false;
+
+ if (!__L && !__R && __black_count(__x, _M_root()) != __len)
+ return false;
+ }
+
+ if (_M_leftmost() != _Rb_tree_node_base::_S_minimum(_M_root()))
+ return false;
+ if (_M_rightmost() != _Rb_tree_node_base::_S_maximum(_M_root()))
+ return false;
+
+ return true;
+}
+#endif /* _STLP_DEBUG */
+
+_STLP_MOVE_TO_STD_NAMESPACE
+_STLP_END_NAMESPACE
+
+#undef _Rb_tree
+#undef __iterator__
+#undef iterator
+#undef __size_type__
+
+#endif /* _STLP_TREE_C */
+
+// Local Variables:
+// mode:C++
+// End:
projects / polintos / scott / priv.git / blobdiff