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How do ownership and borrowing work in Rust's memory model?
Asked on Feb 14, 2026
Answer
In Rust, ownership and borrowing are fundamental concepts that ensure memory safety without a garbage collector. Ownership determines how memory is managed, while borrowing allows temporary access to data without transferring ownership, enforced by the borrow checker.
Example Concept: In Rust, each value has a single owner, and when the owner goes out of scope, the value is dropped, freeing the memory. Borrowing allows references to a value without taking ownership. There are two types of borrowing: immutable (read-only) and mutable (read-write). Immutable references allow multiple simultaneous reads, while mutable references require exclusive access. The borrow checker enforces these rules at compile time, preventing data races and ensuring safe memory access.
Additional Comment:
- Ownership transfers when a value is moved, such as when passing it to a function.
- Rust's borrow checker prevents dangling references and ensures memory safety.
- Understanding ownership and borrowing is crucial for writing efficient and safe Rust code.
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