In the world of game development, C++ is undoubtedly the king of programming languages. From Cyberpunk 2077 to Fortnite, almost all mainstream game engines (such as Unreal Engine and the underlying Unity) rely on the powerful performance and flexibility of C++. So, how does C++ “ignite” game engines? Where are the secrets of high-performance rendering … Read more
1 Overview 1.1 Monadic Interface In functional programming languages, the Monadic interface is a fundamental concept or mechanism for abstracting computational logic, expressing side effects, and controlling flow. This is because functions cannot produce side effects, such as IO, state modification, or throwing exceptions. However, in certain cases, such as reading and writing files, error … Read more
01 Introduction“Imagine you are running an animal shelter with both cats and dogs. Now you want to manage all the animals using a list, and every day you call out ‘Dinner time’, and all the animals start eating. How would you implement this scenario in C++ code?”Question: Cats and dogs are different classes; how can … Read more
⚛️ std::atomic — The Mysterious Power of the Atomic Button Machine ⚙️ <span>std::atomic</span> is a concurrent primitive provided by C++, allowing you to operate on a variable in a multithreaded environment without needing locks to ensure consistency. Its core goal: “To allow multiple threads to read and write to a variable simultaneously without conflicts, without … Read more
1. Why Choose the Combination of C++ and Qt? C++ is a high-performance programming language that plays a crucial role in system-level programming and performance-sensitive scenarios. The Qt framework provides rich GUI components and cross-platform capabilities, allowing the combination to meet performance requirements while quickly building aesthetically pleasing interfaces.Main Advantages: High Performance: The compiled nature … Read more
New Syntax for Type Conversion in C++ – Template Conversion Functions C++ supports the C language’s syntax for forced type conversion and has introduced a new method that allows for better control over the conversion process. Upcasting: Converting a subclass to a superclass, where the subclass space is given to a superclass pointer (safe). Downcasting: … Read more
When learning C++, you may come across function declarations like this: class Point { public: int GetX() const; }; Then you might wonder: “What does this <span>const</span> at the end of the function mean? Why is it added?” 🤔 Actually, it represents a constant member function (<span>const</span> member function), let’s take a closer look. What … Read more
What seems like a simple constructor hides countless dangers; how many can you avoid? Recently, I came across a C++ constructor problem during a code review. It appears unremarkable but has caused many programmers to falter. Today, let’s uncover the 3 fatal traps of this “death constructor”! Original code: Under the calm surface, dark currents … Read more
Abstract A matrix is a fundamental data structure in linear algebra and scientific computing, widely used in numerical analysis, engineering calculations, and artificial intelligence algorithms. This article presents a generic matrix class designed and implemented using C++ templates, which includes core functionalities such as matrix generation, output, addition, subtraction, multiplication, transposition, inversion, adjoint matrix, and … Read more
Did you think RAII is just for managing memory? That might only unleash 1% of its power. 1. Reassessing RAII: From “Tool” to “Philosophy” When it comes to RAII, almost every C++ programmer can immediately recite: “Resource Acquisition Is Initialization”. Our first reaction is to think of smart pointers: <span>std::unique_ptr</span>, <span>std::shared_ptr</span>. Indeed, they are one … Read more