C in a Nutshell: The Definitive Reference
The new edition of this classic O’Reilly reference provides clear, detailed explanations of every feature in the C language and runtime library, including multithreading, type-generic macros, and library functions that are new in the 2011 C standard (C11). If you want to understand the effects of an unfamiliar function, and how the standard library requires it to behave, you’ll find it here, along with a typical example.
Ideal for experienced C and C++ programmers, this book also includes popular tools in the GNU software collection. You’ll learn how to build C programs with GNU Make, compile executable programs from C source code, and test and debug your programs with the GNU debugger.
In three sections, this authoritative book covers:
- C language concepts and language elements, with separate chapters on types, statements, pointers, memory management, I/O, and more
- The C standard library, including an overview of standard headers and a detailed function reference
- Basic C programming tools in the GNU software collection, with instructions on how use them with the Eclipse IDE
Why Read This Book
You will get a compact, authoritative reference to the C language and the C11 standard that you can consult when you need a precise answer about syntax, semantics, or library behavior. The book also shows practical GNU toolchain usage (GCC, Make, GDB) so you can build, test, and debug real-world firmware and systems code.
Who Will Benefit
Experienced C/C++ developers and embedded/firmware engineers who need a precise, standards-oriented reference for writing portable, correct C code and using the GNU toolchain.
Level: Advanced — Prerequisites: Solid familiarity with C programming fundamentals (types, pointers, functions) and basic systems concepts; experience with compiling and running programs is recommended.
Key Takeaways
- Understand the full set of C11 language features and how they change program semantics (including atomics, thread support, and type-generic macros).
- Use the C standard library correctly by learning exact behaviors, edge cases, and typical usage patterns for I/O, memory, strings, and math routines.
- Write more portable and standards-compliant C by recognizing undefined and implementation-defined behaviors and how to avoid them.
- Build, test, and debug C programs with the GNU toolchain: GCC, GNU Make, and GDB, including common compilation and debugging workflows.
- Apply multithreading and concurrency primitives from the C11 library safely and understand their interaction with the language memory model.
Topics Covered
- Introduction and C11 overview
- Lexical elements, tokens, and encoding
- Types, declarations, and storage
- Expressions, operators, and precedence
- Statements, control flow, and scopes
- Functions, linkage, and calling conventions
- The preprocessor and macros (including type-generic macros)
- The standard library: stdio, stdlib, string, math, time, etc.
- Memory management and object lifetime
- Concurrency: threads, atomics, and the memory model
- Undefined behavior, diagnostics, and implementation limits
- Interfacing with C++ and other languages
- Practical toolchain usage: GCC, GNU Make, and GDB
- Appendices: keywords, library reference, and compatibility notes
Languages, Platforms & Tools
How It Compares
More up-to-date and tool-oriented than K&R (which is a concise tutorial) and more practical than Harbison & Steele's formal reference; it pairs a standards-focused reference with GNU toolchain guidance.
