In Rust, Cell and RefCell are interior mutability smart pointers that allow you to mutate values through shared references (&T), even when you have an immutable binding. Cell provides interior mutability for copy types, using methods like set and get. RefCell is more flexible, allowing for multiple mutable or immutable borrows at runtime, but will panic if any borrow rule violations occur. Use borrow and borrow_mut methods to access the underlying value of a RefCell.
This example demonstrates how to create and use Cell and RefCell for interior mutability in Rust. The code demonstrates how to set and get values with Cell, as well as borrow and borrow_mut methods for accessing the underlying value of a RefCell. The code is well-commented to explain each step clearly.
