Welcome Back to C++(2022)

C++ has evolved into a highly versatile programming language, widely used for various applications, including games, device drivers, and mobile apps. Its design emphasizes performance and flexibility, allowing developers to work at both high and low levels of abstraction. Modern C++ introduces features that reduce reliance on C-style programming, enhancing code safety and simplicity. Key principles include Resource Acquisition Is Initialization (RAII), which manages memory and resources effectively through smart pointers like std::unique_ptr and std::shared_ptr. The language also promotes the use of standard library containers, such as std::vector and std::map, to avoid common bugs associated with raw arrays. Modern C++ encourages the use of algorithms from the standard library, range-based for loops for iteration, and constexpr for compile-time constants, replacing error-prone macros. Move semantics and lambda expressions further streamline resource management and function handling. Exception handling is preferred over error codes for managing errors, and C++17 introduces std::variant for type-safe unions. Overall, modern C++ aims to provide a safer, more efficient programming experience while maintaining the performance characteristics that have made it popular.

- C++ is widely used for various applications, emphasizing performance and flexibility.

- Modern C++ reduces reliance on C-style programming, enhancing safety and simplicity.

- Key features include smart pointers, standard library containers, and algorithms.

- Move semantics and lambda expressions streamline resource management and function handling.

- Exception handling is preferred over error codes for better error management.