What are some use cases for std::string_view in C++17?

What are some use cases for std::string_view in C++17?

std::string_view is useful for performance optimization, especially when passing strings to functions without copying.

Can you give me an example of how to use it in a function?

Sure! You can define a function like this: void printString(std::string_view str) { std::cout << str; }.

What are the benefits of using string_view over string?

Using string_view avoids unnecessary copies, reduces memory usage, and can improve performance in string manipulation.

Are there any limitations I should be aware of?

Yes, string_view does not own the string data, so it must not outlive the original string it references.