mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 23:34:48 +00:00
15 lines
650 B
Rust
15 lines
650 B
Rust
#![feature(box_into_boxed_slice)]
|
|
|
|
use std::boxed::Box;
|
|
use std::fmt::Debug;
|
|
fn main() {
|
|
let boxed_slice = Box::new([1,2,3]) as Box<[u8]>;
|
|
let _ = Box::into_boxed_slice(boxed_slice);
|
|
//~^ ERROR the size for values of type `[u8]` cannot be known at compilation time
|
|
//~^^ ERROR the size for values of type `[u8]` cannot be known at compilation time
|
|
let boxed_trait: Box<dyn Debug> = Box::new(5u8);
|
|
let _ = Box::into_boxed_slice(boxed_trait);
|
|
//~^ ERROR the size for values of type `dyn Debug` cannot be known at compilation time
|
|
//~^^ ERROR the size for values of type `dyn Debug` cannot be known at compilation time
|
|
}
|