This article systematically explains C++ reference‑count changes, the precise moments when ++/-- operators trigger in shared_ptr, move, copy, reset and destroy operations, and illustrates common mistakes with concrete code examples, helping developers and interviewees avoid subtle bugs and logic errors.
This article explores common pitfalls when using std::shared_ptr in C++, including unnecessary copying, extra heap allocations, cyclic references, and subtle memory retention with make_shared, provides benchmark comparisons, and offers practical guidelines such as preferring const‑reference passing, using std::make_shared, and employing weak_ptr to break cycles.
This article introduces C++ smart pointers—unique_ptr, shared_ptr, and weak_ptr—explaining their RAII‑based automatic memory management, usage patterns, performance considerations, common pitfalls such as cyclic references, and practical examples including factory patterns and GUI data sharing, while also covering size and custom deleters.
This article explains how C++ smart pointers—unique_ptr, shared_ptr, weak_ptr and the deprecated auto_ptr—use RAII and reference‑counting to automate memory management, avoid leaks and dangling pointers, and provide guidelines, performance analysis, and practical usage tips for modern C++ development.
C++11 smart pointers—unique_ptr, shared_ptr, and weak_ptr—replace manual new/delete by providing exclusive, shared, and non‑owning ownership semantics, automatically preventing leaks and dangling references, simplifying multithreaded code, and, when used with best‑practice guidelines, avoid common pitfalls such as double deletions and cyclic dependencies.
