24 lines
810 B
Rust
24 lines
810 B
Rust
#![feature(const_trait_impl)]
|
|
|
|
const fn maybe_const_maybe<T: [const] ?Sized>() {}
|
|
//~^ ERROR `[const]` trait not allowed with `?` trait polarity modifier
|
|
//~| ERROR `[const]` can only be applied to `const` traits
|
|
//~| ERROR `[const]` can only be applied to `const` traits
|
|
|
|
fn const_maybe<T: const ?Sized>() {}
|
|
//~^ ERROR `const` trait not allowed with `?` trait polarity modifier
|
|
//~| ERROR `const` can only be applied to `const` traits
|
|
|
|
const fn maybe_const_negative<T: [const] !Trait>() {}
|
|
//~^ ERROR `[const]` trait not allowed with `!` trait polarity modifier
|
|
//~| ERROR negative bounds are not supported
|
|
|
|
fn const_negative<T: const !Trait>() {}
|
|
//~^ ERROR `const` trait not allowed with `!` trait polarity modifier
|
|
//~| ERROR negative bounds are not supported
|
|
|
|
#[const_trait]
|
|
trait Trait {}
|
|
|
|
fn main() {}
|