Using the malloc Function for Dynamic Memory Allocation in C In C programming, memory management is an important topic, especially when dealing with memory that needs to be dynamically allocated. Dynamic memory allocation allows programs to request a specific amount of memory as needed, without having to declare the size of variables in advance. This … Read more
Content Source: Sun Wukong Seeking Knowledge Basic Terminology of State Machines Current State: Refers to the state currently being occupied. Condition: Also known as “event”, when a condition is met, it will trigger an action or execute a state transition. Action: The action executed after the condition is met. After the action is completed, it … Read more
1. Writing the C program ch03_05_01.c /* * This program constructs a structure TestStruct with members of different lengths. * It sums the structure members using both C functions and assembly functions to verify the correctness of the assembly code. * The focus is on the Pad8 member, which does not participate in calculations, but … Read more
📌 Problem Description Write a function str_replace that replaces the first occurrence of an old substring with a new substring in the given string, returning the modified new string. Requirements: Only a single replacement is required The returned new string must be dynamically allocated Example: Input: str="Hello World", old="World", new="C" Output: "Hello C" Difficulty: ⭐️ … Read more
Understanding the if Statement: A Deep Dive into C Language Control Structures In programming, control flow refers to a series of statements that determine the order of execution of a program. The <span>if</span> statement is one of the most fundamental and commonly used control structures in C language. It allows us to execute different blocks … Read more
Graphical User Interface: Basics of C Language GUI Programming A graphical user interface (GUI) is the standard interaction method for modern applications, allowing users to interact with programs through images and visual indicators rather than relying solely on text commands. While many developers prefer to use higher-level languages for GUI programming, such as Python or … Read more
Applications and Examples of Signal Handling in C Language Signal handling is an important concept in operating systems and programming, especially in C language, as it allows programs to respond to asynchronous events such as user input, timer expirations, or signals from other external devices. In this article, we will explore the basic principles of … Read more
Real-Time Requirements in Embedded C Programming In embedded systems, real-time is a crucial concept. Whether it is controlling motors, collecting sensor data, or handling communication protocols, tasks must be executed within strict time constraints. This article will detail the real-time requirements in embedded C programming and provide relevant code demonstrations. What is Real-Time? Real-time refers … Read more
C Language For Loop: Efficient Iteration Programming Techniques In C language, <span>for</span> loop is a very commonly used control structure that allows us to repeatedly execute a block of code under a specific condition. Compared to other loop structures like <span>while</span> and <span>do…while</span>, the <span>for</span> loop is usually more concise and readable, making it particularly … Read more
Various Methods and Examples of File Read and Write Operations in C Language In C language, file read and write operations are one of the important basic operations. Through files, we can persistently store data on disk or read data from the disk. In this article, we will detail several main methods for performing file … Read more