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)

Low-Level Programming

Sometimes, for precise results and in order to overcome the limitations of a programming language, you need to control the content of CPU registers at the bit level. In such situations, you can make use of two things: bitwise operators and assembly language programming.

In this chapter, we will learn how to perform the following recipes in order to carry out low-level programming in C:

  • Converting a binary number into a decimal using a bitwise operator
  • Converting a decimal into binary using a bitwise operator
  • Converting a decimal number into binary using bit masking
  • Multiplying two numbers using the inline assembly language in C
  • Dividing two numbers using assembly code in C