rustHow to drop box in Rust

Dropping a box in Rust is a way to deallocate memory that is no longer needed. This is done by calling the drop function on the box.

let mut x = Box::new(5);
drop(x);

The code above creates a box containing the value 5 and then calls the drop function on it. This will deallocate the memory that was allocated for the box.

The drop function takes a mutable reference to the box as an argument. This is necessary because the drop function needs to modify the box in order to deallocate the memory.

The drop function is a special function that is automatically called when a box is no longer needed. This ensures that the memory allocated for the box is deallocated and not left to waste.

Helpful links

• Rust Documentation - Box
• Rust Documentation - Drop

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