rust/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/trait-fn-const.rs
León Orell Valerian Liehr aa799049d7
E0379: Provide suggestions
2024-01-02 13:49:48 +01:00

22 lines
510 B
Rust

// Regression test for issue #113378.
#![feature(const_trait_impl, effects)]
#[const_trait]
trait Trait {
const fn fun(); //~ ERROR functions in traits cannot be declared const
}
impl const Trait for () {
const fn fun() {} //~ ERROR functions in trait impls cannot be declared const
}
impl Trait for u32 {
const fn fun() {} //~ ERROR functions in trait impls cannot be declared const
}
trait NonConst {
const fn fun(); //~ ERROR functions in traits cannot be declared const
}
fn main() {}