bool List:: remove(char& obj)
{
if(!empty())
{
obj = data[cursor];
int i = cursor;
while(i < actual -1)
{
data[i] = data[i+1];
i++;
}
if(cursor == actual)
{
gotoBeginning();
}
actual--;
return true;
}
else {
return false;
}
}
List::~List()
{
Node* tmp;
if(!empty())
{
gotoBeginning();
//loop through all nodes and delete them
while(cursor != NULL)
{
tmp = cursor;
cursor = cursor->next;
delete tmp;
}
}
}
bool List::remove(char& c)
{
if(!empty())
{
c = cursor->data;
Node* tmp = cursor;
//use this if the in focus node is not the tail of the list
if(cursor->next != NULL)
{
Node* tmp2 = cursor->next;
gotoPrior();
delete tmp;
tmp = NULL;
cursor->next = tmp2;
}
//use this if the cursor is on the tail
else
{
//check if this is the only node
if(cursor == head)
{
delete cursor;
//set to empty
cursor = NULL;
head = NULL;
}
else
{
gotoPrior();
cursor->next = NULL;
gotoBeginning();
delete tmp;
tmp = NULL;
}
}
return true;
}
return false;
}
bool List::clear()
{
if(!empty())
{
gotoBeginning();
Node* tmp = NULL;
//loop until last node
while(cursor != NULL)
{
tmp = cursor;
cursor = cursor->next;
delete tmp;
}
//set cursor to show that list is empty
cursor = NULL;
head = NULL;
return true;
}
return false;
}
