Rust Smart Pointer

Azriel Lector's photo
Azriel Lector
·Sep 8, 2020·

1 min read

Rust's ownership mechanism limit there is only one owner of a variable. When the variable goes out of scope, Rust automatically recycle the space of that variable. What smart pointers do is that they allow multiple owner of a variable. And when the variable goes out of scope, the related ownerships get released automatically.

The Rust standard library provides Rc to set multiple references to a variable and RefCell to allow interior mutability of a generic type. For example, you could define >> to implement tree structure in Rust.

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