Liangxu Linux

Mar 5, 2025 · Fundamentals

What Hidden Functions Does C++ Auto‑Generate for Your Classes?

This article explains the seven default special member functions that C++ automatically provides for a class—including constructors, destructors, copy/move operations and address‑of operators—showing when they are sufficient, when they can cause problems such as shallow copies or double frees, and how to implement custom versions to ensure correct resource management.