RUST

Every value in Rust has a variable that's called its owner. There can only be one owner at a time. When the owner goes out of scope, the value will be dropped.

This simple set of rules forms the foundation of Rust's memory safety guarantees — no garbage collector needed, no runtime overhead, just compile-time verification that your program respects the laws of ownership.

Move semantics ensure that when you assign a value to a new variable, the original binding becomes invalid. The compiler catches use-after-move errors before your code ever runs.