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我正在尝试创建一个链接列表,该链接列表按名称和评分排序。评分排序部分按正确顺序排列所有内容,但出于某种原因,按字母顺序排序不会以正确的顺序(甚至以相反的顺序)放置任何内容。有时,List :: Insert的字母排序部分打破了printByRating()函数。有人请帮忙吗?按字母顺序排列的链表不按顺序排列
这里是我的插入功能:
void List::insert(const Winery& winery)
{
Node * prev = NULL;
Node * curr = NULL;
Node * newNode = new Node(winery);
newNode->nextByName = NULL;
newNode->nextByRating = NULL;
//sort by name
curr = headByName;
while (curr!=NULL && curr->item.getName() < newNode->item.getName())
{
prev = curr;
curr = curr->nextByName;
}
newNode->nextByName = curr;
if(prev == NULL)
headByName = newNode;
else
prev->nextByName = newNode;
//sort by rating
curr = headByRating;
while (curr!=NULL && curr->item.getRating() > newNode->item.getRating())
{
prev = curr;
curr = curr->nextByRating;
}
newNode->nextByRating = curr;
if(prev == NULL)
headByRating = newNode;
else
prev->nextByRating = newNode;
}
我这里还有的酒厂类提供给我的功能:
const char * const getName() const { return name; }
const char * const getLocation() const { return location; }
const int getAcres() const { return acres; }
const int getRating() const { return rating; }