1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
warning: mutable reference of mutable static is discouraged
--> $DIR/thread-local-static.rs:12:23
|
LL | std::mem::swap(x, &mut STATIC_VAR_2)
| ^^^^^^^^^^^^^^^^^ mutable reference of mutable static
|
= note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447>
= note: reference of mutable static is a hard error from 2024 edition
= note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior
= note: `#[warn(static_mut_ref)]` on by default
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
|
LL | std::mem::swap(x, addr_of_mut!(STATIC_VAR_2))
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
error[E0658]: mutable references are not allowed in constant functions
--> $DIR/thread-local-static.rs:10:12
|
LL | const fn g(x: &mut [u32; 8]) {
| ^
|
= note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
= help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
error[E0625]: thread-local statics cannot be accessed at compile-time
--> $DIR/thread-local-static.rs:12:28
|
LL | std::mem::swap(x, &mut STATIC_VAR_2)
| ^^^^^^^^^^^^
error[E0013]: constant functions cannot refer to statics
--> $DIR/thread-local-static.rs:12:28
|
LL | std::mem::swap(x, &mut STATIC_VAR_2)
| ^^^^^^^^^^^^
|
= help: consider extracting the value of the `static` to a `const`, and referring to that
error[E0658]: mutable references are not allowed in constant functions
--> $DIR/thread-local-static.rs:12:23
|
LL | std::mem::swap(x, &mut STATIC_VAR_2)
| ^^^^^^^^^^^^^^^^^
|
= note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
= help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
error[E0133]: use of mutable static is unsafe and requires unsafe function or block
--> $DIR/thread-local-static.rs:12:23
|
LL | std::mem::swap(x, &mut STATIC_VAR_2)
| ^^^^^^^^^^^^^^^^^ 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 5 previous errors; 1 warning emitted
Some errors have detailed explanations: E0013, E0133, E0625, E0658.
For more information about an error, try `rustc --explain E0013`.
|
