24 lines
422 B
Rust
24 lines
422 B
Rust
use std::cell::RefCell;
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use std::rc::Rc;
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fn rc_refcell() -> i32 {
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let r = Rc::new(RefCell::new(42));
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*r.borrow_mut() += 10;
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let x = *r.borrow();
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x
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}
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fn rc_raw() {
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let r = Rc::new(0);
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let r2 = Rc::into_raw(r.clone());
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let r2 = unsafe { Rc::from_raw(r2) };
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assert!(Rc::ptr_eq(&r, &r2));
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drop(r);
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assert!(Rc::try_unwrap(r2).is_ok());
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}
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fn main() {
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rc_refcell();
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rc_raw();
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}
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