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