This is the first comprehensive treatment of ANSI and ISO standards for the C Library. Written by a world renowned author on the C programming language and the head of the ANSI committee that standardized the C Library, this new guide contains the complete code of the Standard C Library and includes practical advice on using all 15 headers. All C programmers will benefit from the book's focus on the concepts, design issues, and trade-offs associated with library building; using this book, programmers will make the best use of the C Library and will learn to build programs with maximum portability and reusability.