Akshat Srivastava’s Post

Why don’t more C++ developers talk about Return Value Optimization (RVO)? This optimization has existed in C++ since 1997, yet many developers still assume returning objects is expensive. Let’s take a simple case. A function creates an object and returns it: MyClass Myfun() { return MyClass obj; } Without optimization, you might imagine this happening: • create obj inside Myfun() • copy it when returning to main() • destroy the local object That sounds like extra work, right? Here’s the interesting part. Modern C++ compilers apply Return Value Optimization (RVO). Instead of: create → copy → destroy The compiler simply constructs the object directly in the caller’s memory. So the object is effectively created inside main() from the start. No extra copy. No unnecessary destruction. A subtle optimization — but one that makes returning objects cheap and idiomatic in C++. Small compiler optimizations like this are why understanding how C++ actually works under the hood matters. Did you learn about RVO early, or much later in your C++ journey? #CPP #SoftwareEngineering #Programming #SystemsProgramming #Developers

🚀 Level Up Your Modern C++ Game: 4 Essential Reads! C++ has evolved dramatically in recent years. If you’re still writing code like it’s 2003, you’re missing out on the safety, efficiency, and power of the modern standards. To master the language today, you need resources that leverage C++20 and C++23. Here are four books I highly recommend for any developer's shelf: 1️⃣ Programming: Principles and Practice Using C++ (3rd Edition) By Bjarne Stroustrup Who better to learn from than the creator of the language himself? This isn't just about syntax, it’s about fundamental programming principles. The 3rd edition is fully updated for C++20 and C++23, focusing on real-world techniques rather than obscure technicalities. 2️⃣ C++ Software Design By Klaus Iglberger Writing code is easy, designing maintainable software is hard. This book is a masterclass in managing dependencies and abstractions. It bridges the gap between classic design patterns and modern C++ capabilities to help you build scalable systems. 3️⃣ C++ Memory Management By Patrice Roy Manual memory management is a double-edged sword. It offers unparalleled flexibility but can lead to critical errors if mishandled. Patrice Roy provides a deep dive into C++ memory mechanisms, teaching you how to automate and optimize for safer, leaner program design. 4️⃣ C++ in Embedded Systems By Amar Mahmutbegović The embedded world is still heavily dominated by C, but modern C++ is a game-changer for firmware. This guide is perfect for developers looking to transition to C++ in resource-constrained environments, ensuring your solutions are robust and safe without sacrificing performance. Modern C++ is more than just a language, it's a powerful toolset for building the future. 💬 Do you have a favorite C++ book that changed the way you code? Let me know in the comments! #embeddedfirmware #cpp #cppprogramming #softwareengineering #embedded #coding #moderncpp #developercommunity

💡 C++ isn’t “old” — it’s battle-tested power. While everyone is chasing shiny new languages, C++ is still running the world silently: 🚗 Automotive systems 💳 Payment networks 🎮 Game engines 🖥️ High-performance systems And here’s the truth most people don’t talk about 👇 👉 C++ doesn’t forgive you. 👉 It forces you to understand memory, performance, and systems deeply. 👉 It makes you a better engineer, not just a coder. After 10+ years working with C++ in real-world domains like automotive HMI and payment processing, one thing is clear: 🔥 “If you can write efficient, clean C++, you can pick up almost any language.” But most developers struggle because they focus on syntax, not fundamentals: ❌ Writing code without understanding memory layout ❌ Ignoring RAII and ownership ❌ Misusing pointers and smart pointers ❌ Treating C++ like Java/Python Instead, focus on this: ✅ Master RAII (Resource Acquisition Is Initialization) ✅ Understand stack vs heap deeply ✅ Learn move semantics & modern C++ (C++11+) ✅ Write code with performance intent Here’s a simple mindset shift that changed my coding: 👉 “Don’t just write code that works. Write code that respects memory.” Example: Before: int* data = new int(10); // forgot delete → memory leak After: auto data = std::make_unique<int>(10); // RAII + safe Clean. Safe. Modern. --- 🚀 C++ is not dying. It’s evolving — and those who master it will always stay ahead. If you’re learning C++, don’t rush. Go deep. That’s where the real edge is. --- 💬 Curious — what’s the hardest C++ concept you’ve faced? #cpp #softwareengineering #programming #systemsdesign #coding #developers

The Strategy Pattern (Focus on Refactoring and Professional Coding) Headline: Stop the if-else Nightmare! ⚔️ We’ve all seen it: A simple feature starts with one if, and six months later, it’s a 50-line clumsy block that everyone is afraid to touch. This is exactly how technical debt starts. In 2026, professional-grade software follows the Strategy Pattern. 🧠 Why it’s a game-changer: ✅ Open-Closed Principle: Open for extension, but closed for modification. ✅ Clean Code: No more messy conditional logic. ✅ High Scalability: Adding a new payment type or behavior takes minutes, not hours. Don't just write code that "works." Write code that is "easy to extend." That’s the mark of a Senior Developer. 🚀 #DesignPatterns #JavaDevelopment #CleanCode2026 #StrategyPattern #SOLID #Refactoring #SoftwareCraftsmanship #Java8 #ObjectOriented Programming #CodingLife #TechInnovation #SoftwareEngineer

Software Development is 10% writing code and 90% convincing yourself that the "Not Everyone Should Code" video isn't a personal attack from the algorithm. 😅 Current status: My CSS is broken, my SQL queries are literal, and my GPU costs more than my transportation. We're "vibe coding" now, and the vibes are… expensive. #Programming #WebDev #CareerRealities #VibeCoding

🔹 Type Deduction in C++ (auto, decltype) This short video is part of my "C++ Programming Topics" series 👇 And also included in my broader learning playlist. 💡 The problem: Many developers either over-specify types or rely on guesswork when writing modern C++ code. This can lead to: -Verbose and harder-to-read code -Subtle bugs when types are not what you expect -Reduced flexibility when refactoring ❌ 📌 This is where type deduction becomes powerful: 👉 Let the compiler infer the correct type safely and efficiently. 💡 The solution: Using modern C++ features like auto, decltype, and template deduction: ✔️ Write cleaner and more concise code ✔️ Reduce redundancy ✔️ Let the compiler handle complexity ⚙️ Bonus insight from the video: You’ll see how type deduction works in different scenarios: 1️⃣ auto Great for simplifying variable declarations Improves readability when types are obvious 2️⃣ decltype Useful when you need the exact type of an expression Helps in advanced template and generic programming 3️⃣ Template Type Deduction The core concept behind generic programming Enables flexible and reusable code 🎯 Key takeaway: Don’t fight the compiler—use it. Modern C++ gives you tools to write cleaner, safer, and more maintainable code. 🎥 Watch the video: https://lnkd.in/dZSDe2Pi 📚 Full playlist: https://lnkd.in/dDNVWvVC 📚 Source code, examples, and notes: https://lnkd.in/dy2Kp-4f #cpp #moderncpp #programming #softwareengineering #templates #cleancode

𝗠𝗼𝘀𝘁 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀 𝘂𝘀𝗲 𝗖#... But very few actually understand 𝘄𝗵𝗮𝘁 𝗵𝗮𝗽𝗽𝗲𝗻𝘀 𝗮𝗳𝘁𝗲𝗿 𝗵𝗶𝘁𝘁𝗶𝗻𝗴 𝗥𝗨𝗡. This visual breaks it down step by step: • How C# code is compiled into IL • How the .NET runtime (CLR) manages execution • How JIT converts it into machine code If you’ve ever been 𝗰𝗼𝗻𝗳𝘂𝘀𝗲𝗱 about: – how your code actually runs – what CLR really does – or why performance behaves the way it does This will make things much clearer. Understanding this isn’t just theory — it helps you write better, faster, and more reliable code. 𝗪𝗵𝗮𝘁 𝗽𝗮𝗿𝘁 𝗼𝗳 𝗖# 𝗼𝗿 .𝗡𝗘𝗧 𝗱𝗼 𝘆𝗼𝘂 𝗳𝗶𝗻𝗱 𝗵𝗮𝗿𝗱𝗲𝘀𝘁 𝘁𝗼 𝘂𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱? #csharp #dotnet #programming #softwaredevelopment #backenddevelopment #developers #aspnetcore #fullstackdeveloper

Most C++ developers learn noexcept as a compiler optimization hint. That framing is technically correct and completely useless for building intuition. Here is how I think about it now: Without noexcept: "Something might go wrong inside here that I am pushing up to you to handle." With noexcept: "I own my failure modes. I will never surprise you with an exception. Check my return value." It is a contract. Not a hint. This maps directly to how C developers already think, functions return error codes, callers check them. noexcept is C++ making that contract explicit and machine-enforced. Once I started reading it as intent rather than mechanism, I started putting it in far more places. And my APIs got cleaner because of it. If your function handles its own errors and signals failure through return values, mark it noexcept. You are telling the reader something important. #cpp #softwaredevelopment #programming

💻 The code works… But something still feels wrong. Every developer has faced this. ✔ No errors ✔ Output is correct ❌ But code feels messy That’s when I realized… 👉 “Working code” is not “Good code” Bad signs: - Too many responsibilities in one class - Hardcoded values everywhere - Difficult to read after 2 days What I learned: Clean code is not optional. It’s what saves you later. Now I try to follow: ✔ Single Responsibility ✔ Proper naming ✔ Simple logic Still learning every day 🚀 #dotnet #csharp #softwaredeveloper #coding #cleancode

Hello, C++ developers. [Post 13] ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ TOPIC: Copy Elision and Return Value Optimization (RVO) Master compiler optimizations that eliminate copy/move operations entirely by constructing objects directly in their final destination. What this carousel covers: → Copy elision principle - construct → copy → destroy becomes just construct in place → RVO (Return Value Optimization) - returning prvalues, mandatory in C++17 → NRVO (Named RVO) - returning named locals, optional but common → C++17 guaranteed copy elision - prvalue expressions bypass copy/move entirely → std::move prevents NRVO - never use std::move on return statements → Multiple return paths - usually prevent NRVO optimization → Non-copyable types - work with RVO (C++17+), not with NRVO unless compiler applies it → Automatic move fallback - if NRVO fails, compiler uses move instead of copy → Real-world measurements - construct only vs construct + move comparisons Key insights: ◆ C++17 RVO is mandatory for prvalues - return Object() always elides, no copy/move possible ◆ NRVO is optional - return local_var may or may not elide, compiler-dependent ◆ std::move on return prevents RVO/NRVO - forces move when elision would have occurred ◆ Return by value is efficient - trust the compiler, don't use out-parameters for optimization ◆ Multiple return paths block NRVO - compiler can't determine single object address ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Note: LinkedIn compresses carousel images. For best experience, download the PDF or pinch-zoom on mobile. #CPlusPlus #CPP #RVO #NRVO #CopyElision #CompilerOptimization #CPP17 #Programming #SoftwareEngineering #PerformanceOptimization #ZeroCopy #ModernCPP #TechEducation #DeveloperLife #CodeOptimization #Prvalue #ReturnValueOptimization #TechnicalExcellence #AdvancedCPP #CompilerMagic