62 lines
2.8 KiB
Plaintext
62 lines
2.8 KiB
Plaintext
warning: mutable reference of mutable static is discouraged
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--> $DIR/thread-local-static.rs:10:23
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LL | std::mem::swap(x, &mut STATIC_VAR_2)
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| ^^^^^^^^^^^^^^^^^ mutable reference of mutable static
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= note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447>
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= note: reference of mutable static is a hard error from 2024 edition
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= note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior
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= note: `#[warn(static_mut_ref)]` on by default
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help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer
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LL | std::mem::swap(x, addr_of_mut!(STATIC_VAR_2))
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| ~~~~~~~~~~~~~~~~~~~~~~~~~~
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error[E0133]: use of mutable static is unsafe and requires unsafe function or block
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--> $DIR/thread-local-static.rs:10:28
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LL | std::mem::swap(x, &mut STATIC_VAR_2)
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| ^^^^^^^^^^^^ use of mutable static
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= note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
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error[E0658]: mutable references are not allowed in constant functions
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--> $DIR/thread-local-static.rs:8:12
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LL | const fn g(x: &mut [u32; 8]) {
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| ^
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= note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
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= help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error[E0625]: thread-local statics cannot be accessed at compile-time
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--> $DIR/thread-local-static.rs:10:28
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LL | std::mem::swap(x, &mut STATIC_VAR_2)
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| ^^^^^^^^^^^^
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error[E0013]: constant functions cannot refer to statics
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--> $DIR/thread-local-static.rs:10:28
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LL | std::mem::swap(x, &mut STATIC_VAR_2)
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| ^^^^^^^^^^^^
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= help: consider extracting the value of the `static` to a `const`, and referring to that
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error[E0658]: mutable references are not allowed in constant functions
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--> $DIR/thread-local-static.rs:10:23
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LL | std::mem::swap(x, &mut STATIC_VAR_2)
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| ^^^^^^^^^^^^^^^^^
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= note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
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= help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error: aborting due to 5 previous errors; 1 warning emitted
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Some errors have detailed explanations: E0013, E0133, E0625, E0658.
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For more information about an error, try `rustc --explain E0013`.
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