About the Real World Functional programming for the masses This fast-moving tutorial introduces you to OCaml, an industrial-strength programming language designed for expressiveness, safety, and speed. Through the books many examples, youll quickly learn how OCaml stands out as a tool for writing fast, succinct, and readable systems code. Real World OCaml takes you through the concepts of the language at a brisk pace, and then helps you explore the tools and techniques that make OCaml an effective and practical tool. In the books third section, youll delve deep into the details of the compiler toolchain and OCamls simple and efficient runtime system. Learn the foundations of the language, such as higher-order functions, algebraic data types, and modules Explore advanced features such as functors, first-class modules, and objects Leverage Core, a comprehensive general-purpose standard library for OCaml Design effective and reusable libraries, making the most of OCamls approach to abstraction and modularity Tackle practical programming problems from command-line parsing to asynchronous network programming Examine profiling and interactive debugging techniques with tools such as GNU gdb Contacts Language Concepts Chapter 1 A Guided Tour Chapter 2 Variables and Functions Chapter 3 Lists and Patterns Chapter 4 Files, Modules, and Programs Chapter 5 Records Chapter 6 Variants Chapter 7 Error Handling Chapter 8 Imperative Programming Chapter 9 Functors Chapter 10 First-Class Modules Chapter 11 Objects Chapter 12 Classes Tools and Techniques Chapter 13 Maps and Hash Tables Chapter 14 Command-Line Parsing Chapter 15 Handling JSON Data Chapter 16 Parsing with OCamllex and Menhir Chapter 17 Data Serialization with S-Expressions Chapter 18 Concurrent Programming with Async The Runtime System Chapter 19 Foreign Function Interface Chapter 20 Memory Representation of Values Chapter 21 Understanding the Garbage Collector Chapter 22 The Compiler Parsing and