Previously, we have used basic data objects as elements of an array, such as an array A, which has elements of type int and a total of 10 elements. We can declare such an array using int A[10].Now, let’s expand our thinking: can we use an array as an element of another array? For example, … Read more
Data Encryption and Decryption Methods in C Language In modern computer science, the security of data has become increasingly important. Encryption and decryption are effective means of protecting sensitive information. In this article, we will introduce how to implement simple data encryption and decryption methods using the C language. What are Encryption and Decryption? Encryption: … Read more
Basics of Device Driver Development in C Language A device driver is a bridge between the operating system and hardware, responsible for managing and controlling hardware devices. This article will introduce how to develop simple device drivers using the C language, suitable for beginners. 1. What is a Device Driver? A device driver is a … Read more
Principles of Quick Sort and Merge Sort in C Language In computer science, sorting algorithms are fundamental knowledge. Today, we will provide a detailed introduction to two commonly used sorting algorithms: Quick Sort and Merge Sort. Each of these algorithms has its advantages and disadvantages, making them suitable for different scenarios. 1. Quick Sort 1. … Read more
Memory-Mapped File Operations in C Language A memory-mapped file is a technique that maps the contents of a file directly into the process’s address space. This allows the program to access file data as if it were accessing memory, thereby improving I/O efficiency. In C language, we can use the mmap function to perform memory-mapped … Read more
The Clever Use of if and switch Statements in C Language In C language, selection structures are important tools for controlling the flow of program execution. They allow the program to execute different blocks of code based on different conditions. This article will detail two commonly used selection structures: <span>if</span> statement and <span>switch</span> statement, and … Read more
#includeIn C language, #include is a preprocessor directive that is used to include the contents of another file into the current file before compilation. In simple terms, it acts like copying and pasting the contents of the specified file at the location of#include.Its core function is toinclude header files, allowing the code to access functions, … Read more
Code Standards and Commenting Guidelines in C Language When writing programs in C, good coding standards and commenting practices not only improve code readability but also facilitate team collaboration and future maintenance. This article will detail some basic coding standards and commenting guidelines in C, illustrated with examples. 1. Code Formatting 1. Indentation Using a … Read more
Unions in C Language: Techniques for Memory Savings In the C language, a union is a special data structure that allows storing different types of data in the same memory location. Unlike structures, which allocate independent memory for each member, a union only allocates enough space for its largest member. This makes unions an effective … Read more
Programming Virtual Reality and Augmented Reality in C Language In today’s technological era, Virtual Reality (VR) and Augmented Reality (AR) technologies are gradually becoming part of our lives. Although these technologies are often associated with advanced programming languages such as C++, C#, or Python, we can also use the C language to implement some basic … Read more