rust/src/test/ui/traits/trait-inheritance-num1.rs
2019-07-27 18:56:16 +03:00

16 lines
279 B
Rust

// run-pass
#![allow(dead_code)]
// pretty-expanded FIXME #23616
pub trait NumCast: Sized {
fn from(i: i32) -> Option<Self>;
}
pub trait NumExt: NumCast + PartialOrd { }
fn greater_than_one<T:NumExt>(n: &T) -> bool {
*n > NumCast::from(1).unwrap()
}
pub fn main() {}