PB_DS_CLASS_T_DEC
inline bool
PB_DS_CLASS_C_DEC::
erase(const_key_reference r_key)
{
point_iterator it = find(r_key);
if (it == base_type::end())
return false;
erase(it);
return true;
}
PB_DS_CLASS_T_DEC
inline typename PB_DS_CLASS_C_DEC::iterator
PB_DS_CLASS_C_DEC::
erase(iterator it)
{
_GLIBCXX_DEBUG_ONLY(assert_valid());
if (it == base_type::end())
return it;
iterator ret_it = it;
++ret_it;
erase_node(it.m_p_nd);
_GLIBCXX_DEBUG_ONLY(assert_valid());
return ret_it;
}
PB_DS_CLASS_T_DEC
inline typename PB_DS_CLASS_C_DEC::reverse_iterator
PB_DS_CLASS_C_DEC::
erase(reverse_iterator it)
{
_GLIBCXX_DEBUG_ONLY(assert_valid());
if (it.m_p_nd == base_type::m_p_head)
return (it);
reverse_iterator ret_it = it;
++ret_it;
erase_node(it.m_p_nd);
_GLIBCXX_DEBUG_ONLY(assert_valid());
return ret_it;
}
PB_DS_CLASS_T_DEC
template<typename Pred>
inline typename PB_DS_CLASS_C_DEC::size_type
PB_DS_CLASS_C_DEC::
erase_if(Pred pred)
{
_GLIBCXX_DEBUG_ONLY(assert_valid();)
size_type num_ersd = 0;
iterator it = base_type::begin();
while (it != base_type::end())
{
if (pred(*it))
{
++num_ersd;
it = erase(it);
}
else
++it;
}
_GLIBCXX_DEBUG_ONLY(assert_valid();)
return num_ersd;
}
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
erase_node(node_pointer p_nd)
{
_GLIBCXX_DEBUG_ASSERT(p_nd != NULL);
splay(p_nd);
_GLIBCXX_DEBUG_ONLY(assert_valid();)
_GLIBCXX_DEBUG_ASSERT(p_nd == this->m_p_head->m_p_parent);
node_pointer p_l = p_nd->m_p_left;
node_pointer p_r = p_nd->m_p_right;
base_type::update_min_max_for_erased_node(p_nd);
base_type::actual_erase_node(p_nd);
if (p_r == NULL)
{
base_type::m_p_head->m_p_parent = p_l;
if (p_l != NULL)
p_l->m_p_parent = base_type::m_p_head;
_GLIBCXX_DEBUG_ONLY(assert_valid();)
return;
}
node_pointer p_target_r = leftmost(p_r);
_GLIBCXX_DEBUG_ASSERT(p_target_r != NULL);
p_r->m_p_parent = base_type::m_p_head;
base_type::m_p_head->m_p_parent = p_r;
splay(p_target_r);
_GLIBCXX_DEBUG_ONLY(p_target_r->m_p_left = NULL);
_GLIBCXX_DEBUG_ASSERT(p_target_r->m_p_parent == this->m_p_head);
_GLIBCXX_DEBUG_ASSERT(this->m_p_head->m_p_parent == p_target_r);
p_target_r->m_p_left = p_l;
if (p_l != NULL)
p_l->m_p_parent = p_target_r;
_GLIBCXX_DEBUG_ONLY(assert_valid();)
apply_update(p_target_r, (node_update* )this);
}
PB_DS_CLASS_T_DEC
inline typename PB_DS_CLASS_C_DEC::node_pointer
PB_DS_CLASS_C_DEC::
leftmost(node_pointer p_nd)
{
_GLIBCXX_DEBUG_ASSERT(p_nd != NULL);
while (p_nd->m_p_left != NULL)
p_nd = p_nd->m_p_left;
return p_nd;
}