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

Naming pointers

Because pointers hold addresses of values and not the desired values themselves, it is a good idea to differentiate between them by naming the pointers slightly differently than the direct variables. There are several naming conventions that are more or less in widespread use. This includes prefixing or suffixing ptr or p to the name of the variable identifier. So, our identifiers may appear as follows:

int anInteger;

int* ptrAnInteger; // prefix ptr-
int* pAnInteger; // prefix p- (shorthand)
int* anIntegerPtr; // suffix -Ptr
int* anIntegerP; // suffix -P (shorthand)

The general advice is to pick one of these conventions and use it consistently throughout your code. Of the four shown, the p-shorthand prefixis probably the most common and easiest to both type (with your keyboard) and read. This convention will be used for the remainder of this book. So, when we see, saypDimension, we know immediately that it is a variable that is a pointer. This...