File: generic-bound.rs

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb11u3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,245,360 kB
  • sloc: xml: 147,985; javascript: 18,022; sh: 11,083; python: 10,265; ansic: 6,172; cpp: 5,023; asm: 4,390; makefile: 4,269
file content (30 lines) | stat: -rw-r--r-- 500 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
//@ known-bug: #110395

#![feature(const_trait_impl)]

use std::marker::PhantomData;

struct S<T>(PhantomData<T>);

impl<T> Copy for S<T> {}
impl<T> Clone for S<T> {
    fn clone(&self) -> Self {
        S(PhantomData)
    }
}

impl<T> const std::ops::Add for S<T> {
    type Output = Self;

    fn add(self, _: Self) -> Self {
        S(std::marker::PhantomData)
    }
}

const fn twice<T: std::ops::Add>(arg: S<T>) -> S<T> {
    arg + arg
}

fn main() {
    let _ = twice(S(PhantomData::<i32>));
}