Understanding the #pragma Directive in C Language

Click 👆👆👆 the blue text Follow “Passion Embedded” <span>#pragma</span> is a preprocessor directive in C/C++ used to pass specific compilation instructions or commands to the compiler. Due to the syntax and functionality of <span>#pragma</span> being highly dependent on the compiler implementation, its behavior may vary significantly across different compilers. 1. Basic Concepts and Syntax Purpose: … Read more

The Thirty-Six Questions of C Language: The Heavenly Fierce Star

Task: Draw a sine wave, a logarithmic spiral, and an arithmetic spiral.First, draw the mathematical two-dimensional coordinate axes and mark the scales accordingly on the axes.Then, draw a sine wave in red, a logarithmic spiral in green, and an arithmetic spiral in blue.EffectSource Code #define _CRT_SECURE_NO_WARNINGS#include <graphics.h>#include <math.h>#include <stdio.h>#include <conio.h>#define PI 3.1415926535 int main() { … Read more

C Language Macros and C++ Templates: Applications of Two Metaprogramming Techniques in High-Performance Computing

Introduction In High-Performance Computing (HPC), template metaprogramming or macros are often seen, where functions are called through template parameters or macro parameters. The most notable examples are CUTLASS (which uses templates almost exclusively) and OpenBLAS (which uses macros in many places). In fact, both macros and templates are metaprogramming techniques that occur before the actual … Read more

C Language Special: 17. Logical Operations and Ternary Operator (Bitwise Logic Operations, Conditional Operator)

The logical operators and ternary operator (conditional operator) in C language are very common and fundamental operators, used for boolean logic operations and simplifying conditional expressions. By using these operators appropriately, the code can be made more concise and clear. This article will focus on logical operators, the ternary operator, and bitwise logic operations. 1. … Read more

Implementing Linked Lists in C: Creation, Traversal, and Operations of Singly Linked Lists

Implementing Linked Lists in C: Creation, Traversal, and Operations of Singly Linked Lists In data structures, a linked list is a very important linear data structure. Unlike arrays, the elements in a linked list do not need to be stored in contiguous memory locations; instead, they are connected through pointers. This article will detail how … Read more

Code Style in C Language: The Importance of Uniformity

Code Style in C Language: The Importance of Uniformity In programming, the readability and maintainability of code are extremely important. Especially in a relatively low-level programming language like C, a good code style not only improves team collaboration efficiency but also reduces the likelihood of errors. This article will detail the code style in C … Read more

Detailed Explanation of Input and Output Functions in C: scanf and printf

In C language, input and output are the basic ways for programs to interact with users.<span>scanf</span> and <span>printf</span> are the two most commonly used standard library functions for handling input and output. This article will provide a detailed introduction to the usage, format, and some considerations of these two functions. 1. printf Function 1.1 Function … Read more

Application of C Language in the Financial Sector: Risk Calculation and Modeling

Application of C Language in the Financial Sector: Risk Calculation and Modeling In the modern financial sector, risk management is a crucial aspect. By assessing the risks associated with various financial instruments and portfolios, institutions can make more informed decisions. The C language, as an efficient and flexible programming language, excels in implementing complex financial … Read more

C Language Code Optimization: Applications of Loop Unrolling and Inline Expansion

C Language Code Optimization: Applications of Loop Unrolling and Inline Expansion In C programming, performance optimization is an important topic. As the complexity of programs increases, improving code execution efficiency becomes a concern for developers. This article will introduce two common optimization techniques: Loop Unrolling and Inline Expansion, and provide detailed explanations through example code. … Read more