The C++ exception handling mechanism allows a program to transfer control from the point of error to specialized error handling code when a runtime error occurs. The core mechanism is based on three keywords: throw, try, and catch. Key components: 1. throw When an error is detected, an exception object is thrown using throw. Any … Read more
Hello everyone! Today we will discuss how to effectively use C++ exception handling in Excel data processing. 1. Why is Exception Handling Necessary? Imagine you are importing a 500MB Excel file and suddenly discover that the file is corrupted—an application without exception handling would crash directly, while one with exception handling can gracefully inform the … Read more
Book Giveaway at the End 01 A Classic C++ Interview Question Is it difficult for beginners to pass interviews at major companies? Let’s first look at a classic C++ interview question. “Can you explain the principles and uses of smart pointers?” If students have memorized the strategies, they can probably say that smart pointers are … Read more
Deep Understanding of Exception Class Hierarchy The C++ Standard Library provides a rich set of exception classes that form a hierarchy. std::exception is the base class for all exception classes, defining a virtual function what() to return a string describing the exception. For example: #include <iostream> #include <exception> int main() { try { throw std::exception(); … Read more
In the world of C++ programming, resource management has always been a headache, especially when dealing with memory, file handles, and other system resources. Today, I want to explore a very important concept with you—RAII (Resource Acquisition Is Initialization). Through this article, you will understand how RAII helps us manage resources effectively, avoiding common memory … Read more
In C++, resource management is a very important topic, especially when it comes to managing system resources such as memory, files, and network connections. C++ provides powerful tools and features to help programmers manage these resources efficiently and safely, with one of the key techniques being the application of smart pointers. In this article, we … Read more
Embedded development sounds impressive, but it’s not that special. It’s just using C++ on small devices, like smartwatches or home appliance controllers. Today, we’ll talk about how to use C++ to handle the control logic of these little gadgets. Don’t worry, it’s quite simple! 1 Let’s Talk About the Characteristics of Embedded Development Embedded development … Read more
C++ exception handling is one of the important features for improving program robustness and maintainability. In C++, resource management is closely related to exception handling, especially in ensuring that resources are correctly released in the event of an exception. In this regard, RAII (Resource Acquisition Is Initialization) is a very important design pattern that uses … Read more