Async Programming

C Language Interview: Signal Handling and Inter-Process Communication

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C Language Interview: Signal Handling and Inter-Process Communication

C Language Interview: Signal Handling and Inter-Process Communication In modern operating systems, inter-process communication (IPC) and signal handling are two very important concepts. In C language interviews, examiners often focus on these two topics as they involve crucial aspects of system programming. This article will detail the basic concepts of signal handling and inter-process communication, … Read more

C Language Code Analysis Tool: Using SonarQube

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C Language Code Analysis Tool: Using SonarQube

C Language Code Analysis Tool: Using SonarQube In modern software development, code quality is one of the critical factors for ensuring project success. To help developers improve code quality, SonarQube is widely used as a powerful static code analysis tool. This article will detail how to use SonarQube for code analysis in C language projects. … Read more

C Language Struct Encapsulation Functions: From Error Examples to Engineering-Level Code Design (A Must-Read for Embedded Development)

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C Language Struct Encapsulation Functions: From Error Examples to Engineering-Level Code Design (A Must-Read for Embedded Development)

In embedded development, struct encapsulation function pointers are powerful tools for improving code quality, but a flawed design can lead to disaster. This article guides you through correcting typical error cases and mastering engineering-level implementation solutions. 1. Analysis of Typical Error Cases The code provided by the developer has three fatal issues: // Problematic code … Read more

Storage Classes in C: auto, extern, and static

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Storage Classes in C: auto, extern, and static

Storage Classes in C: auto, extern, and static In C, the storage class of a variable determines its lifecycle, visibility, and initial value. In this article, we will delve into three main storage classes: <span>auto</span>, <span>extern</span>, and <span>static</span>. We will illustrate the characteristics and usage of each storage class through code examples. 1. <span>auto</span> Definition … Read more

Dynamic Memory Allocation in C: malloc and free

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Dynamic Memory Allocation in C: malloc and free

Dynamic Memory Allocation in C: malloc and free In C programming, dynamic memory allocation is an important concept. It allows programs to request and release memory as needed during runtime. <span>malloc</span> and <span>free</span> are the two most commonly used functions for dynamic memory management. In this article, we will provide a detailed introduction to the … Read more

Common Techniques for Register Manipulation in C Language

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Common Techniques for Register Manipulation in C Language

When assigning values to registers using the C language, bit manipulation techniques in C are often required.C language bit manipulation methods. Clearing a specific bit in a register Assuming ‘a’ represents the register, which already has a value. If we want to clear a specific bit while keeping other bits unchanged, the code is as … Read more

Implementing a Simple Encryption and Decryption Tool in C

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Implementing a Simple Encryption and Decryption Tool in C

Implementing a Simple Encryption and Decryption Tool in C In today’s article, we will implement a simple encryption and decryption tool using the C programming language. This tool is based on a very basic character substitution algorithm, allowing users to input a plaintext, encrypt it using a defined method, and then decrypt it back through … Read more

Macro Optimization in C Language: Reducing Code Duplication

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Macro Optimization in C Language: Reducing Code Duplication

Macro Optimization in C Language: Reducing Code Duplication In the C language, macros are a powerful feature that allows for code replacement at compile time, enabling some automated processing. Using macros can effectively reduce code duplication and improve development efficiency. This article will introduce you to macros in C and how to use them to … Read more

Implementing Shared Memory in C: IPC Mechanism

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Implementing Shared Memory in C: IPC Mechanism

Implementing Shared Memory in C: IPC Mechanism In operating systems, Inter-Process Communication (IPC) is a mechanism that allows different processes to exchange data. Shared memory is an important method of IPC that allows multiple processes to access the same physical memory. This method is fast and efficient, making it suitable for applications that require frequent … Read more

Input and Output Functions in C: printf and scanf

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Input and Output Functions in C: printf and scanf

Input and Output Functions in C: printf and scanf In C programming, input and output are fundamental and important operations. The two functions we commonly use are <span>printf</span> and <span>scanf</span>. This article will provide a detailed introduction to these two functions and their usage, helping beginners understand how to perform data output and input. 1. … Read more