Click on the aboveblue text to follow us In embedded systems, memory resources are often very limited, and memory leaks can lead to degraded system performance or even crashes. A memory leak refers to memory allocated by a program that is not properly released, gradually exhausting available memory. As a lightweight real-time operating system (RTOS), … Read more
Today, let’s talk about the various application scenarios of pointers in the C language. Pointers play a crucial role in programming; they are like a “core tool” that helps us manipulate data precisely in the world of memory. As a seasoned technician, I will guide you through the powerful functions of pointers in an easy-to-understand … Read more
Using the malloc Function for Dynamic Memory Allocation in C In C programming, memory management is an important topic, especially when dealing with memory that needs to be dynamically allocated. Dynamic memory allocation allows programs to request a specific amount of memory as needed, without having to declare the size of variables in advance. This … Read more
📌 Problem Description Write a function str_replace that replaces the first occurrence of an old substring with a new substring in the given string, returning the modified new string. Requirements: Only a single replacement is required The returned new string must be dynamically allocated Example: Input: str="Hello World", old="World", new="C" Output: "Hello C" Difficulty: ⭐️ … Read more
1. What are the methods of memory allocation in C language? ▍Technical Principles Explained In embedded systems, the memory allocation mechanism directly affects the stability and performance of programs. C language manages memory through the following three methods: Memory Allocation Methods Low-Level Mechanism Analysis: 1. Static Storage Area Lifecycle: Allocated at program startup, released at … Read more
Let’s start with the background of newlib. It is an open-source C standard library (libc) that originated from Cygnus and was later maintained by Red Hat. Unlike the “heavyweights” like glibc, newlib is specifically designed for bare-metal and small systems, allowing it to run without an operating system. In simple terms, it provides you with … Read more
Dynamic Memory Allocation in C: malloc and free In C programming, dynamic memory allocation is an important concept. It allows programs to request and release memory as needed during runtime. <span>malloc</span> and <span>free</span> are the two most commonly used functions for dynamic memory management. In this article, we will provide a detailed introduction to the … Read more
Becoming a formal embedded development engineer is a challenging process that requires developers to maintain and manage every bit and byte of the system. From a well-defined development cycle to strict execution and system checks, there are many techniques for developing highly reliable embedded systems. Today, I will introduce 7 practical and long-lasting tips that … Read more
In C language, pointers are the core and the most challenging aspect of the language. If you haven’t thoroughly understood pointers, it indicates that you haven’t truly mastered C language.Although many students have systematically studied C language courses in school and have watched my recorded tutorial series “C Primer Plus”, they still find many concepts … Read more
Recent Hot Articles 2025 Latest C Language Learning Path | Beginner, Intermediate, PracticalC Language Learning Guide: Have You Mastered These Core Knowledge Points?C Language Functions: From Beginner to Mastery – A Comprehensive GuideBeginner’s Guide to Avoiding Pitfalls in C Language: Avoid These 12 Devilish Details for Double Efficiency!C Language Examples | Creating, Inserting, and Traversing … Read more