insert_fn_imps.hpp [plain text]
PB_DS_CLASS_T_DEC
inline typename PB_DS_CLASS_C_DEC::point_iterator
PB_DS_CLASS_C_DEC::
push(const_reference r_val)
{
_GLIBCXX_DEBUG_ONLY(assert_valid();)
make_0_exposed();
_GLIBCXX_DEBUG_ONLY(assert_valid();)
node_pointer p_nd = base_type::get_new_node_for_insert(r_val);
p_nd->m_p_l_child = p_nd->m_p_prev_or_parent = NULL;
p_nd->m_metadata = 0;
if (base_type::m_p_max == NULL || Cmp_Fn::operator()(base_type::m_p_max->m_value, r_val))
base_type::m_p_max = p_nd;
p_nd->m_p_next_sibling = base_type::m_p_root;
if (base_type::m_p_root != NULL)
base_type::m_p_root->m_p_prev_or_parent = p_nd;
base_type::m_p_root = p_nd;
if (p_nd->m_p_next_sibling != NULL&& p_nd->m_p_next_sibling->m_metadata == 0)
m_rc.push(p_nd);
_GLIBCXX_DEBUG_ONLY(assert_valid();)
return point_iterator(p_nd);
}
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
modify(point_iterator it, const_reference r_new_val)
{
_GLIBCXX_DEBUG_ONLY(assert_valid();)
make_binomial_heap();
base_type::modify(it, r_new_val);
base_type::find_max();
_GLIBCXX_DEBUG_ONLY(assert_valid();)
}
PB_DS_CLASS_T_DEC
inline typename PB_DS_CLASS_C_DEC::node_pointer
PB_DS_CLASS_C_DEC::
link_with_next_sibling(node_pointer p_nd)
{
node_pointer p_next = p_nd->m_p_next_sibling;
_GLIBCXX_DEBUG_ASSERT(p_next != NULL);
_GLIBCXX_DEBUG_ASSERT(p_next->m_p_prev_or_parent == p_nd);
if (Cmp_Fn::operator()(p_nd->m_value, p_next->m_value))
{
p_next->m_p_prev_or_parent = p_nd->m_p_prev_or_parent;
if (p_next->m_p_prev_or_parent == NULL)
base_type::m_p_root = p_next;
else
p_next->m_p_prev_or_parent->m_p_next_sibling = p_next;
if (base_type::m_p_max == p_nd)
base_type::m_p_max = p_next;
base_type::make_child_of(p_nd, p_next);
++p_next->m_metadata;
return p_next;
}
p_nd->m_p_next_sibling = p_next->m_p_next_sibling;
if (p_nd->m_p_next_sibling != NULL)
p_nd->m_p_next_sibling->m_p_prev_or_parent = p_nd;
if (base_type::m_p_max == p_next)
base_type::m_p_max = p_nd;
base_type::make_child_of(p_next, p_nd);
++p_nd->m_metadata;
return p_nd;
}
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
make_0_exposed()
{
if (m_rc.empty())
return;
node_pointer p_nd = m_rc.top();
m_rc.pop();
_GLIBCXX_DEBUG_ASSERT(p_nd->m_p_next_sibling != NULL);
_GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata == p_nd->m_p_next_sibling->m_metadata);
node_pointer p_res = link_with_next_sibling(p_nd);
if (p_res->m_p_next_sibling != NULL&& p_res->m_metadata == p_res->m_p_next_sibling->m_metadata)
m_rc.push(p_res);
}