16. What is the difference between arrays and pointers? Definition and Essence: An array is a collection of elements of the same type, stored contiguously in memory; a pointer is a variable that stores the address of another variable. Memory Allocation: The memory allocation for an array is determined at compile time, with a fixed … Read more
1. Static Functions, Const Functions, and Virtual Functions Static Functions Static functions cannot be defined as virtual functions. They belong to the class itself, not to instances of the class, and do not have a <span>this</span> pointer. Virtual function calls depend on the object’s virtual function table, requiring the <span>this</span> pointer for location, while static … Read more
During the “May Day” holiday, how many people stayed at home to do a thorough cleaning? As the weather gradually warms up, many people take advantage of the clear skies to start organizing their wardrobes and making a “seasonal change”. Recently, Ms. Shen from Hangzhou took advantage of the good weather to rest at home … Read more
Follow and star our public account for exciting content delivered daily. Source: Online materials Author: AMD Engineer Aravind Babu This article introduces the prerequisites for using PetaLinux on any platform. PetaLinux is an embedded Linux software development kit (SDK) primarily used for FPGA-based system-on-chip (SoC) designs or FPGA designs. Installation Requirements Minimum workstation requirements: 8 … Read more
(Add Linux enthusiasts to your favorites to enhance your Linux skills) Source: Open Source China www.oschina.net/news/116890/linux-kernel-maintainers-are-hard-to-find Recently, a discussion between Linus Torvalds and VMware’s Chief Open Source Officer Dirk Hohndel about the future of Linux kernel maintenance has attracted attention in the tech community. Linus believes that after the current generation of Linux kernel maintainers … Read more
(Click the public account above to quickly follow) Author: Aaron Kili, Translation: Linux China/ch-cn linux.cn/article-8618-1.html If you have good articles to submit, please click → here for details Shell scripting is the simplest way to learn or practice programming in Linux. It is an essential skill for system administrators who need to handle automation tasks … Read more
(Click the public account above to quickly follow) Source: Cheng Mo www.cnblogs.com/chengmo/archive/2010/10/14/1851434.html If you have good articles to submit, please click → here for details The Linux Shell has its own set of control flow statements, including conditional statements (if), loop statements (for, while), and selection statements (case). Below, I will introduce the usage of … Read more
From: Beginner's Station Let’s start with a beautiful image 1. Introduction to zsh 1.1 Linux Shell Linux/Unix provides many types of shells; why so many shells? Are they for cooking? Let me ask you, why do you have so many similar clothes? Different colors and textures. Writing programs is much more complex than buying clothes, … Read more
Thanks to Professors Qin Wen, Liu Feng, Ding Hao, and Liang Meng from Tianjin Medical University for their guidance and sharing. For security reasons, VirtualBox disables the creation of symbolic links in shared folders. This can lead to errors in the operation of certain software, such as FSL, FREESURFER, and the latest version of DPARSFA. … Read more
Scenario 264: Email Server Not Responding Symptoms: Users report being unable to send or receive emails. Troubleshooting Steps: Check the email server logs for errors: journalctl -xe | grep postfix Verify that the email server process is running: systemctl status postfix Check network connectivity: telnet localhost 25 Scenario 265: Emails Stuck in Mail Queue Symptoms: … Read more