Book Image

Practical C Programming

By : B. M. Harwani
Book Image

Practical C Programming

By: B. M. Harwani

Overview of this book

Used in everything from microcontrollers to operating systems, C is a popular programming language among developers because of its flexibility and versatility. This book helps you get hands-on with various tasks, covering the fundamental as well as complex C programming concepts that are essential for making real-life applications. You’ll start with recipes for arrays, strings, user-defined functions, and pre-processing directives. Once you’re familiar with the basic features, you’ll gradually move on to learning pointers, file handling, concurrency, networking, and inter-process communication (IPC). The book then illustrates how to carry out searching and arrange data using different sorting techniques, before demonstrating the implementation of data structures such as stacks and queues. Later, you’ll learn interesting programming features such as using graphics for drawing and animation, and the application of general-purpose utilities. Finally, the book will take you through advanced concepts such as low-level programming, embedded software, IoT, and security in coding, as well as techniques for improving code performance. By the end of this book, you'll have a clear understanding of C programming, and have the skills you need to develop robust apps.
Table of Contents (20 chapters)

Accessing a structure using a pointer

In this recipe, we will make a structure that stores the information of an order placed by a specific customer. A structure is a user-defined data type that can store several members of different data types within it. The structure will have members for storing the order number, email address, and password of the customer:

struct cart
int orderno;
char emailaddress[30];
char password[30];

The preceding structure is named cart, and comprises three members – orderno of the int type for storing the order number of the order placed by the customer, and emailaddress and password of the string type for storing the email address and password of the customer, respectively. Let's begin!