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dlist::insert_before/after

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This commit is contained in:
Jakob Rath 2022-08-01 14:53:41 +02:00 committed by Nikolaj Bjorner
parent de6a0ab1a7
commit e8e64d3098
1 changed files with 16 additions and 0 deletions

16
src/util/dlist.h
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@ -40,6 +40,22 @@ public:
remove_from(list, head);
return head;
}
void insert_after(T* elem) {
T* next = this->m_next;
elem->m_prev = next->m_prev;
elem->m_next = next;
this->m_next = elem;
next->m_prev = elem;
}
void insert_before(T* elem) {
T* prev = this->m_prev;
elem->m_next = prev->m_next;
elem->m_prev = prev;
prev->m_next = elem;
this->m_prev = elem;
}
static void remove_from(T*& list, T* elem) {
if (list->m_next == list) {