mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-27 17:24:06 +00:00
27 lines
1.2 KiB
Plaintext
27 lines
1.2 KiB
Plaintext
warning: creating a shared reference to mutable static is discouraged
|
|
--> $DIR/reference-to-mut-static-safe.rs:9:14
|
|
|
|
|
LL | let _x = &X;
|
|
| ^^ shared reference to mutable static
|
|
|
|
|
= note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447>
|
|
= note: this will be a hard error in the 2024 edition
|
|
= note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior
|
|
= note: `#[warn(static_mut_refs)]` on by default
|
|
help: use `addr_of!` instead to create a raw pointer
|
|
|
|
|
LL | let _x = addr_of!(X);
|
|
| ~~~~~~~~~~~
|
|
|
|
error[E0133]: use of mutable static is unsafe and requires unsafe function or block
|
|
--> $DIR/reference-to-mut-static-safe.rs:9:15
|
|
|
|
|
LL | let _x = &X;
|
|
| ^ use of mutable static
|
|
|
|
|
= note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
|
|
|
|
error: aborting due to 1 previous error; 1 warning emitted
|
|
|
|
For more information about this error, try `rustc --explain E0133`.
|