What is the compatibility of std::string_view in C++17?

What is the compatibility of std::string_view in C++17?

In C++17, std::string_view is designed to provide a lightweight, non-owning view of a string. It is compatible with both std::string and C-style strings.

Can you explain how it differs from std::string?

Certainly! std::string is a full-fledged string class that manages its own memory, while std::string_view does not own the string data; it merely points to it. This makes std::string_view more efficient for read-only operations.

Are there any limitations I should be aware of?

Yes, since std::string_view does not own the data, it can lead to dangling references if the original string is destroyed. Always ensure the lifetime of the original string exceeds that of the string_view.

How can I convert a std::string_view back to std::string?

You can easily convert a std::string_view back to std::string by using the constructor: std::string myString = std::string(myStringView);.