| #![feature(const_trait_impl, effects)] //~ WARN the feature `effects` is incomplete | |
| pub struct Vec3; | |
| #[const_trait] | |
| pub trait Add { | |
| fn add(self) -> Vec3; | |
| } | |
| impl Add for Vec3 { | |
| const fn add(self) -> Vec3 { | |
| //~^ ERROR functions in trait impls cannot be declared const | |
| self | |
| } | |
| } | |
| fn main() {} |