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lifegpc
2022-02-17 18:21:04 +08:00
parent a64c19d111
commit 4bdef58fe5
2 changed files with 52 additions and 0 deletions
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43
linked_list.h
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@@ -153,6 +153,49 @@ bool linked_list_delete(struct LinkedList<T>*& list, T data) {
return false;
}
template <typename T, typename D>
bool linked_list_delete(struct LinkedList<T>*& list, D data, bool(*is_same)(T, D)) {
if (!list || !is_same) return false;
struct LinkedList<T>* t = list;
while (t->prev) {
t = t->prev;
}
if (is_same(t->d, data)) {
if (t->prev) t->prev->next = t->next;
if (t->next) t->next->prev = t->prev;
if (t == list) {
if (t->prev) {
list = t->prev;
} else if (t->next) {
list = t->next;
} else {
list = nullptr;
}
}
free(t);
return true;
}
while (t->next) {
t = t->next;
if (is_same(t->d, data)) {
if (t->prev) t->prev->next = t->next;
if (t->next) t->next->prev = t->prev;
if (t == list) {
if (t->prev) {
list = t->prev;
} else if (t->next) {
list = t->next;
} else {
list = nullptr;
}
}
free(t);
return true;
}
}
return false;
}
template <typename T>
void linked_list_free_tail(struct LinkedList<T>*& list, void(*free_func)(T) = nullptr) {
if (!list) return;