C++ Interview Questions – May Edition

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

High Fever of 40°C After Spring Cleaning: Beware of Mold in the Lungs!

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

Developer’s Guide | Prerequisites for Using PetaLinux

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

Finding Linux Kernel Maintainers: “I Don’t Want to Be Yelled at by Linus”

(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

10 Tips for Writing Efficient Bash Scripts in Linux

(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

Linux Shell Control Flow

(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

Resolving Shared File Issues in VirtualBox with Embedded Linux Systems

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

Real Linux Troubleshooting Scenarios 24: Email Server Configuration and Management

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

Treating Bugs as Features? Linus Torvalds is Speechless…

The Linux Kernel Mailing List (LKML) has erupted again. This time, it’s over an old issue that has existed for more than twenty years: Should file systems be case-sensitive? Linus Torvalds directly referred to it as a “huge mistake,” causing the technical discussion to explode. The issue originated from a patch for the Bcachefs file … Read more