C is a very popular programming language due to its simplicity and wide application across various fields. However, due to the characteristics of C, it is also prone to certain errors and pitfalls that can lead to program crashes, data loss, or security vulnerabilities. This article will introduce 15 common pitfalls in C programming and … Read more
From WeChat Official Account: DeepNoMind Author: Yu Fan C++ code offers sufficient flexibility, making it challenging for most engineers to grasp. This article introduces ten best practices to follow for writing good C++ code and provides a tool at the end to help analyze the robustness of C++ code. Original text: 10 Best practices to … Read more
Best Practices for Ansible: Making Automated Operations More Elegant and Efficient > Master these tips to say goodbye to chaotic Playbooks Introduction: Why Do We Need Best Practices? Hello everyone, I believe many of you have experienced this when using Ansible: as you write your Playbook, it turns into a tangled mess, and two months … Read more
Python – Chapter 2: Comments Comments are a very important part of code; they are used to explain the purpose of the code, helping others or oneself to understand the logic of the code in the future. In Python, comments are not executed by the Python interpreter; they are merely auxiliary information for programmers to … Read more
What is a Namespace? A namespace is an important mechanism in C++ for organizing code and avoiding naming conflicts. It allows grouping code elements (such as variables, functions, and classes) into different naming areas, thus preventing name collisions between different libraries or code modules. The Standard Library and the std Namespace The C++ Standard Library … Read more
In .NET project development, HttpClient is almost an essential tool for calling external APIs. It is easy to use, but if you do not understand its internal mechanisms, you may encounter pitfalls that can lead to serious issues such as service avalanche and port exhaustion. Today, we will review common pitfalls in HttpClient and their … Read more
In the process of standardizing and developing C++, the standards committee made significant reforms to the header file system to distinguish it from C and introduce new features. Continuing to use legacy header files not only appears outdated but also means you cannot utilize many safer and more powerful new features. This article aims to … Read more
The variable scope determines where a variable can be accessed within a program. Python has four main scopes, arranged in the order of lookup: 1. Four Levels of Scope (LEGB Rule) Local – Local Scope Enclosing – Enclosing Scope Global – Global Scope Built-in – Built-in Scope 2. Local Variables vs Global Variables 1. Local … Read more
01 C++ Programming Guidelines – Constants02 Initialization and Type Conversion Declaration, Definition, and Initialization 03 Do not use memcpy or memset to initialize non-POD objects Note: POD stands for “Plain Old Data”, a concept introduced in the C++98 standard (ISO/IEC 14882, first edition, 1998-09-01). POD types mainly include int, char, float, double, enumeration, void, and … Read more
In the field of operations automation, Ansible has become a powerful tool for bulk service deployment due to its agentless architecture, declarative syntax, and rich modules. However, even experienced operations personnel often stumble over seemingly simple details during actual operations. This article, based on over 200 production environment deployment experiences in the past three years, … Read more