How can I use std::optional in legacy C++ code?

How can I use std::optional in legacy C++ code?

You can use std::optional to represent optional values in legacy C++ code. It helps avoid using pointers for optionality.

What are the benefits of using std::optional over raw pointers?

Using std::optional improves code safety by preventing null pointer dereferencing and makes the intent clearer.

Can std::optional be used with existing code that uses pointers?

Yes, you can gradually replace pointers with std::optional in your codebase, but ensure to handle conversions carefully.

Are there any performance concerns with std::optional?

Generally, std::optional has minimal overhead, but it's good to profile your specific use case to ensure performance is acceptable.