Comprehensive Analysis of String Handling Functions in C Language In C language, strings are stored as arrays of characters and are terminated with a null character <span>'\0'</span>. The C standard library provides a series of functions to handle strings, which are defined in the header file <span><string.h></span>. This article will detail commonly used string handling … Read more
In practical development, one often encounters the following question: #include "imx6ul.h" Clearly, this header file is not in the directory of the current <span>.c</span> file, yet the compilation passes smoothly. Why is this? This article will explain the header file search rules in C language for <span>#include</span>. 📌 1. Two Forms of <span>#include</span> <span>#include "filename"</span> … Read more
Follow usLearn Embedded Together, learn and grow together In C language, <span>void*</span> is a special pointer type known as “generic pointer” or “untyped pointer”. Unlike regular pointers, void pointers are not associated with any specific data type, which gives them unique flexibility and a wide range of applications. Core Advantages 1. Strong Generality, Can Point … Read more
Follow and star our public account for exciting content Today, I would like to share 10 amazing open source C language projects, hoping these resources will be helpful to everyone! 01 Webbench Webbench is a very simple website stress testing tool used on Linux. It uses fork() to simulate multiple clients accessing the specified URL … 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
Introduction With the rapid development of the Internet of Things (IoT) and smart devices, edge computing has gradually become an important technological trend. Edge computing refers to processing data closer to the source to reduce latency, bandwidth consumption, and improve response speed. In this article, we will explore how to implement simple edge computing using … Read more
01 The followingcannot be defined as a user identifier: A) man B) _0 C) _int D) sizeof Answer: D Explanation: Among the given options, sizeof is a keyword in C language used to calculate the number of bytes occupied by a data type or variable. Since keywords cannot be used as user identifiers, The naming … Read more
01 The number of actual parameters in the function call statement func is func(f2(v1, v2), (v3, v4, v5), (v6, max(v7, v8))); A) 3 B) 4 C) 5 D) 8 Answer: A Analysis: The first actual parameter is f2(v1, v2), which is the result of a function call. The second actual parameter is (v3, v4, v5), … Read more