Three Essential Elements of a Function Functionality, Parameters, Return Value. 1. Function Exercises 1. Define four functions to implement the operations of two integers: +, -, *, / my_add my_sub my_mul my_div After writing, test the functionality yourself. #include <stdio.h> int my_add(int x, int y); int my_sub(int x, int y); int my_mul(int x, int y); … Read more
📌 Problem Description Write a number guessing game with the following rules:: The program randomly generates an integer between 1~100. The user has a maximum of 10 attempts, with hints provided as “too high” or “too low” after each guess. Upon guessing correctly, a congratulatory message is displayed; if unsuccessful, the correct answer is revealed. … Read more
#include <stdio.h> #include <string.h> #include <ctype.h> typedef void (*funcPtr)(char *); // 1. Remove leading and trailing whitespace (similar to Python's strip) void trim(char *str) { int i = 0, j; int len = strlen(str); // Remove leading whitespace while (isspace(str[i])) i++; // Remove trailing whitespace j = len – 1; while (j >= 0 && … Read more
1. Algorithm for Single Byte Parity Check Code Principle of Parity Check Code The parity check code is used to detect errors in data transmission. There are two types: 1.Even Parity: Ensures that the number of1s in the data is even. 2.Odd Parity: Ensures that the number of1s in the data is odd. Here, we … Read more
Implementing Multiprocessing in C: fork and exec In operating systems, multiprocessing is an important mechanism that allows multiple processes to run simultaneously, thereby improving the efficiency and responsiveness of programs. In C language, <span>fork()</span> and <span>exec()</span> system calls are commonly used to create and manage new processes. This article will detail their working mechanisms and … Read more
Code Refactoring Techniques in C Language Development In software development, code refactoring refers to the process of improving and optimizing existing code without changing its external behavior. Proper refactoring can enhance the readability, maintainability, and performance of the code. This article will introduce some basic code refactoring techniques in C language development and demonstrate how … Read more
C Language Interview: Signal Handling and Inter-Process Communication In modern operating systems, inter-process communication (IPC) and signal handling are two very important concepts. In C language interviews, examiners often focus on these two topics as they involve crucial aspects of system programming. This article will detail the basic concepts of signal handling and inter-process communication, … Read more
C Language Code Analysis Tool: Using SonarQube In modern software development, code quality is one of the critical factors for ensuring project success. To help developers improve code quality, SonarQube is widely used as a powerful static code analysis tool. This article will detail how to use SonarQube for code analysis in C language projects. … Read more
In embedded development, struct encapsulation function pointers are powerful tools for improving code quality, but a flawed design can lead to disaster. This article guides you through correcting typical error cases and mastering engineering-level implementation solutions. 1. Analysis of Typical Error Cases The code provided by the developer has three fatal issues: // Problematic code … Read more
Storage Classes in C: auto, extern, and static In C, the storage class of a variable determines its lifecycle, visibility, and initial value. In this article, we will delve into three main storage classes: <span>auto</span>, <span>extern</span>, and <span>static</span>. We will illustrate the characteristics and usage of each storage class through code examples. 1. <span>auto</span> Definition … Read more