Memory Management in C: Avoiding Memory Leaks and Dangling Pointers In C programming, memory management is a crucial topic. Since C provides direct manipulation of memory, programmers need to manually allocate and free memory. While this flexibility is powerful, it can also lead to common issues such as memory leaks and dangling pointers. This article … Read more
The C language is a powerful programming language widely used in the development of operating systems and embedded systems. It can interact directly with hardware and access low-level operating system functions through system calls. In this article, we will introduce what system calls are and how to use them in C to implement some basic … Read more
Error handling is an important topic in the C language. Since C does not support an exception handling mechanism, we typically use return values to indicate the result of a function’s execution, including success and failure. This article will detail how to handle errors in C, primarily through return values and some common practices. 1. … Read more
String Handling in C: Common Functions and String Manipulation Techniques In C, strings are stored as arrays of characters, terminated by a null character (‘\0’). Although C does not have a built-in string type, we can manipulate strings using a series of functions from the standard library. This article will introduce some common string handling … Read more
Hello everyone, I am Xiaokang. Today, let’s talk about a severely misunderstood feature of the C language—Variable Length Arrays! Have you heard the saying “You can’t define variable length arrays in C”? If you believed that, you have been seriously misled! Today, we will expose this widely spread “lie” and get to the bottom of … Read more
Hello everyone, I am Xiaokang. Today, let’s talk about a severely misunderstood feature of the C language—Variable Length Arrays! Have you heard the saying, “Variable length arrays cannot be defined in C language”? If you believed that, you have been seriously misled! Let’s uncover this widely spread “lie” and get to the bottom of it! … Read more
The C language, as a classic programming language, is widely used in system software, embedded systems, and high-performance computing. For beginners, mastering C not only lays a solid foundation for future programming studies but also helps them better understand the core concepts of computer science. However, learning alone often presents various challenges, making it particularly … Read more
Sorting Algorithms in C: Implementations of Bubble, Selection, and Insertion Sort In computer science, sorting algorithms are a crucial part. They are used to arrange data in a specific order. This article will introduce three basic sorting algorithms: Bubble Sort, Selection Sort, and Insertion Sort, along with their corresponding implementations in C. 1. Bubble Sort … Read more
Arrays in C Language: Definitions and Applications of One-Dimensional and Multi-Dimensional Arrays In the C language, arrays are an important data structure used to store multiple data of the same type. This article will detail the definitions, usage methods, and code examples of one-dimensional and multi-dimensional arrays, helping basic users better understand and apply these … Read more
Detailed Explanation of Unions and Enumerations in C Language In the C language, unions and enumerations are two important data structures. They each have unique uses and characteristics that help programmers manage data more efficiently. This article will provide a detailed introduction to these two data structures, along with code examples to deepen understanding. 1. … Read more