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

Using a scan set to limit possible input characters

A scan set is a group of characters that make up a set and are interpreted as valid characters in the input. A scan set is specified in the format string by the %[ and ] characters; any characters within the square brackets make up the scan set. The scan set may indicate that either the characters should be included in the input or the characters should be excluded. A circumflex (^) used as the first character indicates negation of the set and indicates all characters except those specified. Consider the following scan sets:

Scan set Description
%[aeiouy] Any of the specified six characters—a, e, i, o, u, and y—are valid input.
%[^aeiouy] ...