Book Image

Learn C Programming

By : Jeff Szuhay
Book Image

Learn C Programming

By: Jeff Szuhay

Overview of this book

C is a powerful general-purpose programming language that is excellent for beginners to learn. This book will introduce you to computer programming and software development using C. If you're an experienced developer, this book will help you to become familiar with the C programming language. This C programming book takes you through basic programming concepts and shows you how to implement them in C. Throughout the book, you'll create and run programs that make use of one or more C concepts, such as program structure with functions, data types, and conditional statements. You'll also see how to use looping and iteration, arrays, pointers, and strings. As you make progress, you'll cover code documentation, testing and validation methods, basic input/output, and how to write complete programs in C. By the end of the book, you'll have developed basic programming skills in C, that you can apply to other programming languages and will develop a solid foundation for you to advance as a programmer.
Table of Contents (33 chapters)
Section 1: C Fundamentals
Section 2: Complex Data Types
Section 3: Memory Manipulation
Section 4: Input and Output
Section 5: Building Blocks for Larger Programs

Moving from ASCII to UTF-8

There are two approaches to add UTF-8 support to any ASCII program. One is called soft conversion and the other is called hard conversion. In soft conversion, data is kept in its UTF-8 form everywhere and only very few software changes are necessary. In hard conversion, any UTF-8 data that the program reads will be converted into wide-character arrays and will be handled as such everywhere within the application. Strings will only be converted back into UTF-8 form at output time. Internally, a character remains a fixed-size memory object.

Most applications can do very well with just soft conversion. This is what makes the introduction of UTF-8 on Unix feasible at all. The C standard library headers to address wide characters and Unicode are wchar.h, wctype.h, and uchar.h.