sizeof in C++: Compile-Time Evaluation

💡 C++ Insight — Day 4/100 Most developers get this wrong 👇 int a = 10; int b = a++; std::cout << a << " " << b; What’s the output? 👉 a = 11, b = 10 Why? a++ is post-increment → use first, then increment. int c = ++a; // pre-increment → increment first, then use a++ → use → then increase ++a → increase → then use #CPP #CPlusPlus #Programming #CodingInterview #100DaysOfCode #Developers #CodingTips #TechCommunity #LearnCPP #SoftwareEngineering #EmbeddedSystems #CodeNewbie

Time is everything… especially in code. ⏱️ From logging systems to real-time applications, mastering C++ date & time (<chrono>) is a must for writing efficient and reliable programs. 🔹 Track time precisely 🔹 Measure performance accurately 🔹 Build time-aware systems with confidence 💡 The real upgrade: Moving from old C-style time handling → modern <chrono> library 👉 Type-safe 👉 High precision 👉 Built for modern C++ 🔥 Pro Insight: If you can measure time… You can optimize anything. 💬 Quick question: Do you still use time.h or have you switched to <chrono>? 👇 #Cpp #CPlusPlus #Programming #Coding #SoftwareEngineering #Developers #DSA #ComputerScience #CodingTips #TechLearning #Chrono #DateTime #ModernCpp #PerformanceOptimization #CodingLife #LearnToCode #LinkedInLearning

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

If you fear pointers, you’re missing the real power of C++. ✔ Memory control ✔ Performance optimization ✔ Advanced data structures Start mastering pointers today 🚀 #CPP #CPlusPlus #Programming #Pointers #Tech #Developers #CodeNewbie

💡 C++ Tip — Day 8/100 Range-based loop can secretly make copies ⚠️ std::vector<std::string> v = {"one", "two", "three"}; for (auto x : v) { x += "!"; // modifies copy } Why didn’t original data change? auto x → copy of each element Correct way: for (auto& x : v) { x += "!"; // modifies original } auto → copy auto& → reference (no copy, better performance) #CPP #CPlusPlus #ModernCPP #Programming #CodingTips #100DaysOfCode #Developers #Performance #SoftwareEngineering #STL #TechCommunity #LearnCPP

🔷 C++ Skills Assessment C++ - Comprehensive Quiz Test your C++ knowledge with this comprehensive quiz: - 20 carefully crafted questions - 40 minutes to complete - Instant results and feedback This quiz contains 20 multiple-choice questions. Each question has 4 options, but only one correct answer. Read each question carefully and select the best answer. Good luck! Take the challenge: https://lnkd.in/gX5RWk_h #C #Programming #CodingQuiz

🚀 Using `unique_ptr` for Exclusive Ownership in C++ `unique_ptr` represents exclusive ownership of a dynamically allocated object. Only one `unique_ptr` can point to a given object at a time. When the `unique_ptr` goes out of scope, the object it manages is automatically deleted. This ensures that the object's lifetime is tied to the `unique_ptr`, preventing memory leaks. `unique_ptr` is generally preferred over raw pointers when exclusive ownership is desired. #c++ #programming #coding #tech #learning #professional #career #development

🔷 C++ Skills Assessment C++ - Comprehensive Quiz Test your C++ knowledge with this comprehensive quiz: - 20 carefully crafted questions - 40 minutes to complete - Instant results and feedback This quiz contains 20 multiple-choice questions. Each question has 4 options, but only one correct answer. Read each question carefully and select the best answer. Good luck! Assess your skills: https://lnkd.in/gwmJwbCT #C #Programming #CodingQuiz

🔷 C++ Skills Assessment C++ - Comprehensive Quiz Test your C++ knowledge with this comprehensive quiz: - 20 carefully crafted questions - 40 minutes to complete - Instant results and feedback This quiz contains 20 multiple-choice questions. Each question has 4 options, but only one correct answer. Read each question carefully and select the best answer. Good luck! Assess your skills: https://lnkd.in/gV5qGJR2 #C #Programming #CodingQuiz

🔷 C++ Skills Assessment C++ - Comprehensive Quiz Test your C++ knowledge with this comprehensive quiz: - 19 carefully crafted questions - 40 minutes to complete - Instant results and feedback This quiz contains 20 multiple-choice questions. Each question has 4 options, but only one correct answer. Read each question carefully and select the best answer. Good luck! Take the challenge: https://lnkd.in/gvXW-hpZ #C #Programming #CodingQuiz