Lock-free data structures and the C++26 hazard_pointer

The C++26 standard introduces the header and the class std::hazard_pointer, providing safe memory reclamation for lock-free data structures without the performance bottlenecks of mutexes. Marius Bancila explains how hazard pointers enable threads to announce when they are using a shared node, preventing use-after-free bugs and resolving the ABA problem. The article also covers the API usage, integration patterns, and important pitfalls to avoid when implementing hazard pointers. Open article →