Modern C++: Mastering RAII (Resource Acquisition Is Initialization)

This article delves into RAII (Resource Acquisition Is Initialization) in modern C++. RAII elegantly ties resource management to object lifecycles, using constructors to acquire resources and destructors to release them, preventing leaks. Using a file descriptor example, it demonstrates safe file handling with RAII, explaining the 'rule of three,' 'rule of five,' and 'rule of zero,' and how to avoid common pitfalls. The article concludes by summarizing RAII's advantages and limitations, and suggesting further reading.