Practical C Programming: Solutions for modern C developers to create efficient and well-structured programs

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Managing Strings

Strings are nothing but arrays that store characters. Since strings are character arrays, they utilize less memory and lead to efficient object code, making programs run faster. Just like numerical arrays, strings are zero-based, that is, the first character is stored at index location 0. In C, strings are terminated by a null character, \0.

The recipes in this chapter will enhance your understanding of strings and will acquaint you with string manipulation. Strings play a major role in almost all applications. You will learn how to search strings (which is a very common task), replace a string with another string, search for a string that contains a specific pattern, and more.

In this chapter, you will learn how to create the following recipes using strings:

Determining whether the string is a palindrome
Finding the occurrence...

Key benefits

Tackle various challenges in C programming by making the most of its latest features

Understand the workings of arrays, strings, functions, pointers, advanced data structures, and algorithms

Become well-versed with process synchronization during multitasking and server-client process communication

Description

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.

What you will learn

Discover how to use arrays, functions, and strings to make large applications

Perform preprocessing and conditional compilation for efficient programming

Understand how to use pointers and memory optimally

Use general-purpose utilities and improve code performance

Implement multitasking using threads and process synchronization

Use low-level programming and the inline assembly language

Understand how to use graphics for animation

Get to grips with applying security while developing C programs

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