mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 07:14:28 +00:00
15 lines
331 B
Rust
15 lines
331 B
Rust
// Check that safe fns are not a subtype of unsafe fns.
|
|
|
|
trait Foo {
|
|
unsafe fn len(&self) -> u32;
|
|
}
|
|
|
|
impl Foo for u32 {
|
|
fn len(&self) -> u32 { *self }
|
|
//~^ ERROR method `len` has an incompatible type for trait
|
|
//~| expected signature `unsafe fn(&u32) -> _`
|
|
//~| found signature `fn(&u32) -> _`
|
|
}
|
|
|
|
fn main() { }
|