The C++ Core Guidelines is a living set of best-practice recommendations for writing modern, safe, and maintainable C++. Authored and curated by leaders in the C++ community, it organizes guidance into rules on type and resource safety, interfaces, performance, error handling, concurrency, and library design. Each rule is rationale-driven, showing the “why” behind recommendations and linking to examples that illustrate good and bad patterns. The guidelines encourage use of modern language...