In modern computers, multi-core processors have become mainstream. To fully utilize these hardware resources, we can improve program execution efficiency through parallel computing. This article will introduce how to implement simple parallel computing in C and demonstrate how to optimize using multi-core processors. What is Parallel Computing? Parallel computing refers to breaking down a task … Read more
In programming, recursion is a powerful technique that allows a function to call itself to solve problems. C, as a classic programming language, supports the definition and use of recursive functions. This article will detail what recursion is, how to implement recursion in C, and some common application examples. What is Recursion? Recursion refers to … Read more
Introduction The Eight Queens problem is a classic combinatorial optimization problem that requires placing 8 queens on an 8×8 chessboard such that no two queens threaten each other. In other words, no two queens can be in the same row, column, or diagonal. This problem can be effectively solved using the backtracking algorithm. This article … Read more
In modern programming, image processing is an important field. Although C is not specifically designed for image processing, it provides powerful low-level operation capabilities that allow us to implement basic image reading and displaying functions. In this article, we will introduce how to perform simple image processing using C, including how to read and display … Read more
In modern computing, multithreaded programming is a common technique that allows programs to execute multiple tasks simultaneously, thereby improving efficiency and responsiveness. In C, we can use the POSIX Threads (pthread) library to implement multithreaded programming. This article will introduce the fundamentals of multithreading in C and demonstrate with example code. 1. What is Multithreading? … Read more
Shared memory is an inter-process communication (IPC) mechanism that allows multiple processes to access the same memory area. It is highly efficient because data does not need to be copied between processes but is read and written directly in the shared memory. In this article, we will introduce how to use shared memory in the … Read more
When it comes to learning embedded systems, there is undoubtedly a lot to learn and remember. Writing this down helps me reconstruct problems and receive guidance from peers. 1. What is GDB? During our programming journey, we inevitably encounter program crashes, variable anomalies, and logical errors. This can be particularly frustrating for technical support workers … Read more
Cover ImageThe Southern Right Whale Dolphin (Lissodelphis peronii) is a unique species of dolphin that only lives in the Southern Hemisphere, characterized by the absence of a dorsal fin and its black and white coloration.Main ContentIn Linux systems, we often need to execute the sync command after modifying files to save the changes. Why is … Read more
In C, the atoi function is a commonly used function for converting strings to integers. This function is particularly useful when handling string input, especially when it is necessary to convert user-inputted numeric strings to integer types. This article will provide a detailed explanation of the usage of the atoi function to help readers better … Read more
Of course! Arrays are one of the most fundamental and commonly used data structures in C language. Understanding the underlying principles of arrays not only helps you write efficient programs but also lays a solid foundation for learning pointers, memory management, and more. 1. What is an Array? An array is a group of contiguous … Read more