C/C++

Adventures in Qt: Custom Generic C++ Smart Pointer Template

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Based on the smart pointer created by VTK, all data types have been tested and can be imported into your own project.//////////////////////////////////////////////////////////genericsmartpointer.h//////////////////////////////////////////////////////////#pragma once // Prevents multiple inclusions of the header file (compatible with mainstream compilers)#ifndef GENERIC_SMART_POINTER_H // Macro definition guard (compatible with all compilers)#define GENERIC_SMART_POINTER_H#include <atomic> // Include atomic operations library for thread-safe reference counting#include … Read more

LERC: An Open Source Library Based on C++ for Raster Data Compression

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LERC (Limited Error Raster Compression) is an open-source raster data compression algorithm developed by Esri. It supports fast encoding and decoding of various data types (not just RGB or byte types) while allowing users to set the maximum compression error for each pixel. In simple terms, LERC can achieve efficient compression while precisely controlling data … Read more

C++ RPC Utility Library Based on rpclib in Occlum Environment

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RPC Utils Project Address:View OriginalThis is a C++ RPC utility library based on rpclib in the Occlum environment, providing simplified and user-friendly RPC client and server wrappers. • Compiled rpclib into a static link file using occlum-g++ in the Occlum environment. If used in other environments, it needs to be recompiled. • A quick implementation … Read more

A Child’s C++ Diary at Age 8: (2) Code Framework

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C++Code Framework The code framework: Speaking ofC++, it has a dedicated framework to contain it, which is essentially a small box that holds the code. So what does theC++ code framework look like? (Below is) #include &lt;iostream&gt; // Export toolbox using namespace std; // Namespace int main(){ // Main function return 0; // End statement … Read more

String Serialization and Deserialization in C++

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Serialization and deserialization are common concepts in programming. They are used in data storage, network transmission, and inter-process communication. Serialization: The process of converting a data structure or object into a format that can be stored or transmitted (such as a string or byte stream). Deserialization: The process of converting serialized data back into the … Read more

AI Apprentice Diary | GPT Teaches Me C++ (02): Linked List – A Mental Leap from Structs to STL

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As a computer science student, I once learned about data structures, C language, linked lists, stacks, queues… But to be honest, over time, I almost forgot everything. This semester, I started learning C++, and I decided not to “grind through the textbooks” anymore, but to let GPT be my “companion AI tutor” to gradually rebuild … Read more

Embox: Porting the Powerful Linux Software Ecosystem to Resource-Constrained Embedded Devices

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Embox is not just a real-time operating system (RTOS); it is more like an enabler that ports the powerful Linux software ecosystem to resource-constrained embedded devices, freeing developers from the shackles of traditional embedded development and allowing them to experience unprecedented development efficiency and feature richness. This article will delve into the core features, key … Read more

What Encryption Can Perfectly Adapt Between C++ and Java?

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When selecting an encryption scheme that perfectly adapts between C++ and Java, the key is to ensure that both parties use the exact same algorithm, mode, padding scheme, and key derivation method. Below are verified high-compatibility schemes and recommendations. 🔑 Recommended Encryption Schemes for C++ and Java Interoperability The table below compares the core information … Read more

In-Depth Analysis of GESP Certification C++ Level 3 Questions (True/False) – September 2025

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1、Expression sizeof(‘a’) always results in 1 , because ‘a’ is a character. 【Analysis】 Answer：× Key Point：Type of character literal andsizeof behavior Analysis： InC++, the type of character literal‘a’ ischar,sizeof(char) guarantees1 However inC, character literals areint type,sizeof(‘a’) may be4 Since the question clearly states it isC++, the result is indeed1, but the statement“always“ is inaccurate, becauseC … Read more

Why Use C++ in Informatics Competitions?

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Absolutely right! In informatics competitions (such as IOI, NOI, ACM-ICPC), C++ is the dominant language, with C also holding a place, while other languages (like Java and Python) are relatively less common. This is determined by both the characteristics of the competitions and the features of the languages themselves. The main reasons can be summarized … Read more