C++11: String vs StringView

What are the main differences between std::string and std::string_view in C++11?

The main differences are that std::string is a mutable string that manages its own memory, while std::string_view is a lightweight, non-owning view of a string that does not manage memory.

When should I use std::string_view instead of std::string?

You should use std::string_view when you want to avoid unnecessary copies of strings, especially when passing strings to functions.

Are there any performance benefits to using std::string_view?

Yes, std::string_view can improve performance by reducing memory allocations and copies, making it faster for read-only operations.

Can std::string_view be used with string literals?

Absolutely! std::string_view can be initialized with string literals, making it very convenient for temporary string data.