How do I write intrusive containers in high-performance C++?

Learn how to implement high-performance intrusive containers in C++. This guide covers the fundamentals of intrusive containers, their benefits, and examples of their usage.

intrusive containers, C++, high-performance, data structures, linked lists, tree structures, memory management, efficient algorithms.


        // Example of an intrusive list node
        struct IntrusiveListNode {
            IntrusiveListNode* next;
            IntrusiveListNode* prev;

            IntrusiveListNode() : next(nullptr), prev(nullptr) {}
        };

        class IntrusiveList {
        private:
            IntrusiveListNode head;

        public:
            IntrusiveList() {
                head.next = &head; // point to itself
                head.prev = &head; // point to itself
            }

            void insert(IntrusiveListNode* node) {
                node->next = head.next;
                node->prev = &head;
                head.next->prev = node;
                head.next = node;
            }

            void remove(IntrusiveListNode* node) {
                node->prev->next = node->next;
                node->next->prev = node->prev;
            }
        };

        // Usage example
        struct MyData : IntrusiveListNode {
            int data;
            MyData(int value) : data(value) {}
        };

        int main() {
            IntrusiveList list;
            MyData node1(10);
            MyData node2(20);

            list.insert(&node1);
            list.insert(&node2);

            // Remove node1 from the list
            list.remove(&node1);
            return 0;
        }

How do I write intrusive containers in high-performance C++?

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How do I write intrusive containers in high-performance C++?

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