mirror of
https://github.com/rust-lang/rust
synced 2024-09-30 22:04:36 +00:00
23 lines
757 B
Plaintext
23 lines
757 B
Plaintext
error[E0277]: the size for values of type `T` cannot be known at compilation time
|
|
--> $DIR/unsized-fn-arg.rs:5:17
|
|
|
|
|
LL | fn f<T: ?Sized>(t: T) {}
|
|
| - ^ doesn't have a size known at compile-time
|
|
| |
|
|
| this type parameter needs to be `Sized`
|
|
|
|
|
= help: unsized fn params are gated as an unstable feature
|
|
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
|
|
|
|
LL - fn f<T: ?Sized>(t: T) {}
|
|
LL + fn f<T>(t: T) {}
|
|
|
|
|
help: function arguments must have a statically known size, borrowed types always have a known size
|
|
|
|
|
LL | fn f<T: ?Sized>(t: &T) {}
|
|
| +
|
|
|
|
error: aborting due to 1 previous error
|
|
|
|
For more information about this error, try `rustc --explain E0277`.
|