What are the best practices for C++17?

What are the best practices for C++17?

C++17 introduced several features. Key best practices include using std::optional for optional values, leveraging structured bindings, and utilizing std::variant for type-safe unions.

Can you explain structured bindings?

Structured bindings allow you to unpack tuple-like objects into individual variables. For example, auto [x, y] = std::make_tuple(1, 2); lets you use x and y directly.

What about using std::optional?

std::optional is great for representing values that may or may not be present. It helps avoid null pointer issues and makes your code safer and clearer.

Are there any performance considerations?

Yes, while C++17 features improve code clarity, always profile your code. Some features may introduce overhead, so it's essential to balance readability and performance.