mirror of https://github.com/rust-lang/rust
29 lines
498 B
Rust
29 lines
498 B
Rust
//@ run-pass
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use std::ops::{Deref, DerefMut};
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pub struct MyRef(u32);
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impl Deref for MyRef {
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type Target = u32;
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fn deref(&self) -> &u32 { &self.0 }
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}
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impl DerefMut for MyRef {
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fn deref_mut(&mut self) -> &mut u32 { &mut self.0 }
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}
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fn deref(x: &MyRef) -> &u32 {
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x
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}
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fn deref_mut(x: &mut MyRef) -> &mut u32 {
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x
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}
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fn main() {
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let mut r = MyRef(2);
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assert_eq!(deref(&r) as *const _, &r.0 as *const _);
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assert_eq!(deref_mut(&mut r) as *mut _, &mut r.0 as *mut _);
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}
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