Exploring C++20: The Programmer’s Introduction to C++

C++ has a reputation for being a language you learn one puzzle at a time. In Exploring C++20, Ray Lischner makes that progression the point: short, focused lessons introduce the language in practical steps, then connect those ideas to the tools programmers use to build substantial applications. This third edition is for experienced programmers who want to learn C++20 without starting over with the basics of programming.

Build understanding one exploration at a time

The early lessons move through expressions, strings, input and output, loops, arrays and vectors, algorithms, ranges, functions, and iterators. As the material grows, it takes up custom types, operator overloading, initialization, and more advanced ways to organize and extend a program. This gradual structure helps put individual C++ features in context: readers encounter them as working parts of a language, not just terms to memorize.

Make the standard library part of the picture

Standard-library tools appear early, alongside the core language. The book explores containers and data structures such as vectors and maps, as well as algorithms, ranges, and file I/O. That mix gives readers a practical view of how C++ features and library facilities work together.

Explore what C++20 adds

Concepts, modules, and ranges are among the newer C++20 features covered. Later topics extend into generic programming, multiple inheritance, traits and policies, overloaded functions, and metaprogramming—ideas that help explain how C++ can support programs with more demanding designs.

Turn concepts into programs

Project work includes applications involving body mass index and fixed-point numbers. These examples give readers a chance to bring language features together in practical tasks, while the book’s sequence keeps each new idea connected to what came before.

A focused route into C++20

With its lesson-by-lesson approach and emphasis on applying concepts, this C++20 programming book is aimed at programmers who already know how to think computationally but want a structured way into modern C++. It offers a clear path from language fundamentals toward more sophisticated C++ program design.