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)

Sorting a singly linked list

In this recipe, we will learn how to create a singly linked list comprising integer elements, and then we will learn how to sort this linked list in ascending order. 

A singly linked list consists of several nodes that are connected through pointers. A node of a singly linked list might appear as follows:

Figure 5.16

As you can see, a node of a singly linked list is a structure composed of two parts:

  • Data: This can be one or more variables (also called members) of integer, float, string, or any data type. To keep the program simple, we will take data as a single variable of the integer type.
  • Pointer: This will point to the structure of the type node. Let's call this pointer next in this program, though it can be under any name.

We will use bubble sort for sorting the linked list. Bubble sort is a sequential sorting...