mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 07:14:28 +00:00
50 lines
1.8 KiB
Plaintext
50 lines
1.8 KiB
Plaintext
error[E0282]: type annotations needed
|
|
--> $DIR/call_method_unknown_pointee.rs:10:41
|
|
|
|
|
LL | let _a: i32 = (ptr as *const _).read();
|
|
| ^^^^
|
|
| |
|
|
| cannot infer type
|
|
| cannot call a method on a raw pointer with an unknown pointee type
|
|
|
|
error[E0282]: type annotations needed for `*const _`
|
|
--> $DIR/call_method_unknown_pointee.rs:12:13
|
|
|
|
|
LL | let b = ptr as *const _;
|
|
| ^
|
|
LL |
|
|
LL | let _b: u8 = b.read();
|
|
| ---- cannot call a method on a raw pointer with an unknown pointee type
|
|
|
|
|
help: consider giving `b` an explicit type, where the placeholders `_` are specified
|
|
|
|
|
LL | let b: *const _ = ptr as *const _;
|
|
| ++++++++++
|
|
|
|
error[E0282]: type annotations needed
|
|
--> $DIR/call_method_unknown_pointee.rs:21:39
|
|
|
|
|
LL | let _a: i32 = (ptr as *mut _).read();
|
|
| ^^^^
|
|
| |
|
|
| cannot infer type
|
|
| cannot call a method on a raw pointer with an unknown pointee type
|
|
|
|
error[E0282]: type annotations needed for `*mut _`
|
|
--> $DIR/call_method_unknown_pointee.rs:23:13
|
|
|
|
|
LL | let b = ptr as *mut _;
|
|
| ^
|
|
LL |
|
|
LL | b.write(10);
|
|
| ----- cannot call a method on a raw pointer with an unknown pointee type
|
|
|
|
|
help: consider giving `b` an explicit type, where the placeholders `_` are specified
|
|
|
|
|
LL | let b: *mut _ = ptr as *mut _;
|
|
| ++++++++
|
|
|
|
error: aborting due to 4 previous errors
|
|
|
|
For more information about this error, try `rustc --explain E0282`.
|