Rc
Rc
๋ ์ฐธ์กฐ ์นด์ดํ
๊ณต์ ํฌ์ธํธ์
๋๋ค.
์ฌ๋ฌ ์์น์ ๋์ผํ ๋ฐ์ดํฐ๋ฅผ ์ฐธ์กฐํด์ผํ ๊ฒฝ์ฐ ์ฌ์ฉํฉ๋๋ค:
Rc
is a reference-counted shared pointer. Use this when you need to refer to the same data from multiple places:
use std::rc::Rc; fn main() { let mut a = Rc::new(10); let mut b = a.clone(); println!("a: {a}"); println!("b: {b}"); }
Rc
๋ด๋ถ์ ๋ฐ์ดํฐ๋ฅผ ๋ณ๊ฒฝํด์ผ ํ๋ ๊ฒฝ์ฐ, ๋ฐ์ดํฐ๋ฅผ Cell
๋๋ RefCell
๋ก ๋ํํด์ผํฉ๋๋ค.
๋ฉํฐ์ค๋ ๋์ธ ๊ฒฝ์ฐ Arc
์ฐธ์กฐ
If you need to mutate the data inside an
Rc
, you will need to wrap the data in a type such asCell
orRefCell
. SeeArc
if you are in a multi-threaded context.