const vs constexpr in C++: Whats the actual difference?

1. 1Declare a constant variable using const to ensure its value cannot be changed
2. 2Use constexpr to define a constant expression that can be evaluated at compile-time
3. 3Compare the differences between const and constexpr in terms of compile-time evaluation and runtime behavior
4. 4Apply constexpr to functions to enable compile-time evaluation of their return values
5. 5Test the performance impact of using constexpr versus const in a C++ program

Software engineers and developers working with C++ will benefit from understanding the distinction between const and constexpr to write more efficient and effective code

💡 constexpr allows for compile-time evaluation of expressions, whereas const only ensures runtime immutability

🤔 Const vs constexpr in C++: know the difference! 🚀