| #![feature(negative_impls)] |
| #![feature(specialization)] //~ WARN the feature `specialization` is incomplete |
| |
| struct S; |
| struct Z; |
| |
| default impl S {} //~ ERROR inherent impls cannot be `default` |
| |
| default unsafe impl Send for S {} //~ ERROR impls of auto traits cannot be default |
| //~^ ERROR `S` cannot be sent between threads safely |
| default impl !Send for Z {} //~ ERROR impls of auto traits cannot be default |
| //~^ ERROR negative impls cannot be default impls |
| |
| trait Tr {} |
| default impl !Tr for S {} //~ ERROR negative impls cannot be default impls |
| |
| fn main() {} |
