What are some advanced examples of string literals in C++17?

What are some advanced examples of string literals in C++17?

C++17 introduced several enhancements to string literals. For example, you can use raw string literals to include special characters without escaping them. Here's an example: R"(This is a raw string literal with a newline and a tab )";.

Can you explain how user-defined literals work?

Sure! User-defined literals allow you to define your own suffixes for literals. For instance, you can create a suffix for converting a number to meters: constexpr long double operator"_m"(long double x) { return x; }.

What about string view literals?

String view literals are a way to create non-owning views of strings. You can use std::string_view to avoid unnecessary copies. For example: std::string_view sv = "Hello, World!";.

Are there any performance benefits to using these features?

Yes, using string views can improve performance by avoiding copies, especially with large strings. Raw string literals also simplify code by reducing the need for escape sequences.