C++11: std::string vs std::string_view

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

The main difference is that std::string owns its data, while std::string_view is a non-owning view of a string. This means std::string manages memory, while std::string_view does not.

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

Use std::string_view when you want to avoid unnecessary copies of strings, especially when passing strings to functions. It's more efficient for read-only access.

Are there any limitations to using std::string_view?

Yes, std::string_view cannot outlive the string it points to. If the original string is destroyed, the view becomes invalid.

Can std::string_view be used with string literals?

Absolutely! std::string_view can be initialized with string literals, making it a great choice for function parameters that accept constant strings.