#include <stdio.h> #include <stdbool.h> // Define comparison function type typedef int (*CompareFunction)(const void *a, const void *b); // Bubble sort function void bubble_sort(void *base, size_t num, size_t size, CompareFunction compare) { bool swapped; for (size_t i = 0; i < num – 1; i++) { swapped = false; for (size_t j = 0; j < … Read more
“ This article serves as preparatory content for beginners in microcontroller development, explaining the structure of C language code files using main.c/.h as an example, to help newcomers quickly understand C language for microcontroller programming.” There are only two types of C language code files: source files with a .c suffix and header files with … Read more
Introduction: Are you also a “Command Repeater”? Every time you compile code, you have to type a long string of commands: gcc -o app main.c tool.c -I./include -L./lib -lm…… Change a line of code, and you have to type it all over again; if you mistype a character, you have to start from scratch — … Read more
• 1. Overview • 2. Concept of Opaque Pointers • 3. Why Opaque Pointers are Needed • 4. Implementation Methods • 5. Complete Example: Linked List Implementation • 6. Advanced Applications: File Handles • 7. Interface Design Principles • 8. Common Pitfalls and Solutions • 9. Performance Considerations • 10. Summary of Best Practices 1. … Read more
🎓 C Language Learning Column | Chapter 7: Functions and Scope – The Art of Organization in C Language 💬 “Functions are like departments in a company, each function only does what it is good at, and does not interfere with others.” 📌 Chapter Navigation Module You Will Understand What is a function The “division … Read more
nghttp3 is an HTTP/3 library written in C that implements HTTP/3 functionality based on the QUIC protocol. It occupies a significant place in modern web development due to its efficiency and flexibility. This article will provide a comprehensive understanding of nghttp3 along with practical code examples. nghttp3: A Comprehensive Analysis of the HTTP/3 Library Implemented … Read more
🧩 Detailed Explanation of Two-Dimensional Arrays in C: From Tables to Matrix Operations Author: IoT Smart Academy 🧠 I. Why Learn Two-Dimensional Arrays? In the previous section, we learned about one-dimensional arrays, which are used to store a set of data: int a[5] = {10, 20, 30, 40, 50}; But what if we want to … Read more
This is the 36th article in the C language learning series. The body of a loop can contain any statement, including another loop statement. A nested loop is when one loop is placed inside another loop. Just like in our daily lives, there are 7 days in a week (outer loop), and each day has … Read more
1. Significance and Function of Linked Lists Significance: Linked lists provide the capability for dynamic memory management, allowing the creation and release of data elements as needed during program execution, thus overcoming the limitations of arrays that require a predetermined size. Main Functions: Dynamic Memory Allocation: No need to know the size of the data … Read more
Efficient programming techniques in C include: Bit Manipulation: Prefer using bit manipulation instead of multiplication and division. Global Variables: Accessing global variables is usually faster than accessing local variables. Pointers: Accessing array elements using pointers is generally faster than using array indices. Algorithm Optimization: Arrange branches and loops logically to reduce unnecessary calculations. Macros: Use … Read more