Hello everyone, I am Jiu Cai. Today we will discuss the use of C++ in building efficient real-time systems on Embedded Linux. This is a practical and interesting topic for C++ beginners and enthusiasts. We will explore the wonderful applications of smart pointers and how they can shine in Embedded Linux systems. The magic of … Read more
1. moveMeaning: The essence of move is to convert a left value into a right value reference, thereby triggering move semantics (the move operation is implemented by the type’s move constructor/assignment operator, and resource ownership is transferred).Usage: Clearly identify scenarios where ownership needs to be transferred; efficient insertion in container operations (using move when inserting … Read more
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
C++23 introduces two new standard library function templates<span><span>std::out_ptr</span></span> and <span><span>std::inout_ptr</span></span>, along with their corresponding types <span><span>std::out_ptr_t</span></span> and <span><span>std::inout_ptr_t</span></span>, aimed at enhancing the readability and safety of code interacting with C-style APIs. This article will provide a technical analysis of the design motivations, functional details, usage scenarios, and implementation mechanisms of these two new features, ensuring … Read more
Memory Leak Detection Methods in C++ In C++ programming, memory management is an important topic. Incorrect memory allocation and deallocation can lead to memory leaks, which affect the performance and stability of the program. This article will introduce several methods for detecting memory leaks in C++ programs and provide corresponding code examples. What is a … Read more
Memory Management and Optimization in C++ C++ is a powerful and flexible programming language, but it also presents challenges in memory management for programmers. This article will introduce the basic concepts of memory management in C++ and some optimization techniques to help beginners better understand and utilize memory. 1. Basics of Memory Management In C++, … Read more
Source | AuthorizedTransferred from Xuanyuan’s Programming Universe (ID: xuanyuancoding)Author | Xuanyuan Wind One weekend, someone in my reverse learning group from scratch threw out a C language-related question: First, think about what this code will output after running? I encountered this question a few years ago in a Huawei interview. The code is very short; … Read more
Click the aboveblue text to follow us Memory leaks are a serious issue in embedded system development, especially in resource-constrained environments. Unlike desktop applications, embedded systems often have strict memory limitations, where even small memory leaks can quickly lead to system crashes or functional anomalies. A memory leak refers to a situation where a program … 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
C++ Embedded Development: Achieving Efficient Programs on Resource-Constrained Devices Hey, friends, I am Xiaohui. Today, let’s talk about how to utilize some features of C++ in embedded development to ensure programs run efficiently on resource-constrained devices. Embedded devices have limited memory and weak processors, which means we need to make every resource count. Don’t worry, … Read more