C++ Tip: std::vector::reserve()

Ever wonder how the C++ compiler actually tells the difference between overloaded functions? We write functions with the exact same name and take the magic for granted. But under the hood, the linker requires a unique identifier for every single function. The secret? Name Mangling. Check out the image below! 👇 The compiler automatically alters the function's name based on the number and types of its arguments. To us, it’s just display(). To the compiler, they are two completely different entities (like i for int, d for double). The ambiguity is resolved before the code is even linked. It's a great reminder of how much heavy lifting the compiler does behind the scenes to keep our APIs clean and readable. What’s a concept you used for years before finally looking under the hood? Let's hear it below! #CPP #Cplusplus #SoftwareEngineering #TechTrivia #Programming #BackendDevelopment

C++ _Functions Part2 تم شرح Passing Arguments :   Pass by Value Pass by Reference Default Parameters  Passing Arrays to Functions Static Variables & Global variable & Local Variables #CPP #Programming #Functions

💡 C++ Tip — Day 7/100 auto can silently change your type ⚠️ int x = 10; const int& ref = x; auto a = ref; // int ❗ (const & lost) auto& b = ref; // const int& ✅ ⚡ auto removes references and top-level const by default. That means: auto → makes a copy auto& → keeps reference const auto& → safest for read-only access Using auto blindly can lead to unexpected copies & bugs #CPP #CPlusPlus #ModernCPP #Programming #CodingTips #100DaysOfCode #Developers #SoftwareEngineering #CodeQuality #TechCommunity #LearnCPP #AdvancedCPP

I have options for dynamic generic array in C. Which one should I choose ? 1. Void * 2. Macros Confidential Section #C #Programming #Lowlevel #Systems #DSA

Solved the Target Sum Expression problem in C++ today. The challenge was to count how many different expressions can be formed by placing '+' or '-' before each number in an array so that the final result equals the target. For example: arr = [1, 1, 1, 1, 1], target = 3 Output = 5 What I learned: 1. Each number gives us two choices: add or subtract 2. This problem can be solved efficiently using Dynamic Programming 3. We track how many ways each sum can be formed as we move through the array Key takeaway: Instead of generating all expressions manually, DP helps us store intermediate results and avoid repeated work. #cpp #programming #dsa #dynamicprogramming #codingchallenge #leetcode #geekforgeeks #softwaredeveloper

Found a great tool: Dozzle Dozzle is a self-hosted application for monitoring and logging Docker containers in real-time. It provides shell access, multi-host support, alerts, and SQL-based log analysis capabilities. Check it out: https://lnkd.in/dBnjBJ7p #DevTools #Programming #WebDev

Synchronize properties across dynamically instantiated QML elements, using a C++ singleton that acts as a message broker and recursive signal-slot connections. This design enables flexible and scalable value synchronization across components, with minimal coupling between UI and logic. Read on: https://lnkd.in/e7ia5ysA #QtDev #QML #Cpp #CPlusPlus #Programming

Revisiting fundamentals with a structured approach. Built a prime number checker in C++ using a boolean flag pattern to enhance readability and control flow. Emphasizing: • Logical clarity • Maintainable structure • Efficient iteration Strong fundamentals → Better engineering decisions. #DeveloperMindset #Optimization #FAANGPreparation #Cplusplus #CPP #Programming #SoftwareEngineering #Coding #DataStructure #Algorithms #DSA #ProblemSolving #LogicBuilding #CleanCode #CodeQuality #Developer #Tech

One thing I always found slightly messy in C# was handling methods that return different types. Most of the time it meant: using object and adding extra checks or forcing everything into inheritance Neither felt great. Just saw that C# 15 is introducing Union Types, and it actually solves this in a clean way. Now you can define exactly what types are allowed, and the compiler makes sure you handle all of them. Feels like a small feature, but it’s going to make code a lot more readable and safer. #CSharp #DotNet #Developers #Programming

C++ Design Patterns – Lecture Highlights In today’s lecture, we covered several essential Design Patterns in C++: - Creational Patterns: Singleton, Builder, Simple Factory, Factory Method - Structural Patterns: Adapter - Behavioral Patterns: Observer We also started implementing a final project – a Smart Home System – where students can see all these patterns working together in a real application. All examples and code are available here: https://lnkd.in/dY5n66SB Great session for students learning how to structure C++ projects and apply patterns effectively! #Cplusplus #DesignPatterns #SoftwareEngineering #CleanCode #OOP #SmartHome #Programming #Coding #LearnToCode #SoftwareDesign