mirror of
https://github.com/rust-lang/rust.git
synced 2025-11-25 06:27:12 +00:00
```
error[E0604]: only `u8` can be cast as `char`, not `u32`
--> $DIR/E0604.rs:2:5
|
LL | 1u32 as char;
| ^^^^^^^^^^^^ invalid cast
|
help: try `char::from_u32` instead
|
LL - 1u32 as char;
LL + char::from_u32(1u32);
|
```
```
error[E0620]: cast to unsized type: `&[u8]` as `[char]`
--> $DIR/cast-to-slice.rs:6:5
|
LL | arr as [char];
| ^^^^^^^^^^^^^
|
help: try casting to a reference instead
|
LL | arr as &[char];
| +
```
```
error[E0620]: cast to unsized type: `Box<{integer}>` as `dyn Send`
--> $DIR/cast-to-unsized-trait-object-suggestion.rs:3:5
|
LL | Box::new(1) as dyn Send;
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: you can cast to a `Box` instead
|
LL | Box::new(1) as Box<dyn Send>;
| ++++ +
```
24 lines
880 B
Plaintext
24 lines
880 B
Plaintext
error[E0605]: non-primitive cast: `&&[i32; 1]` as `&[_]`
|
|
--> $DIR/issue-73886.rs:2:13
|
|
|
|
|
LL | let _ = &&[0] as &[_];
|
|
| ^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
|
|
|
|
|
= note: casting reference expression `&&[0]` because `&` binds tighter than `as`
|
|
|
|
error[E0605]: non-primitive cast: `u32` as `Option<_>`
|
|
--> $DIR/issue-73886.rs:4:13
|
|
|
|
|
LL | let _ = 7u32 as Option<_>;
|
|
| ^^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
|
|
|
|
|
help: consider using the `From` trait instead
|
|
|
|
|
LL - let _ = 7u32 as Option<_>;
|
|
LL + let _ = Option::<_>::from(7u32);
|
|
|
|
|
|
|
error: aborting due to 2 previous errors
|
|
|
|
For more information about this error, try `rustc --explain E0605`.
|