C++ Smart Pointers and RAII

Master C++ smart pointers and Resource Acquisition Is Initialization (RAII) patterns for automatic, exception-safe resource management. This skill covers unique_ptr, shared_ptr, weak_ptr, custom deleters, and best practices for modern C++ memory management.

RAII Principles

Resource Acquisition Is Initialization is a fundamental C++ idiom where resource lifetime is tied to object lifetime.

Core Concept

// Bad: Manual resource management
void process_file_bad() {
    FILE* file = fopen("data.txt", "r");
    if (!file) return;