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warning: taking a mutable reference to a `const` item
--> $DIR/E0017.rs:8:30
|
LL | const CR: &'static mut i32 = &mut C;
| ^^^^^^
|
= note: each usage of a `const` item creates a new temporary
= note: the mutable reference will refer to this temporary, not the original `const` item
note: `const` item defined here
--> $DIR/E0017.rs:5:1
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LL | const C: i32 = 2;
| ^^^^^^^^^^^^
= note: `#[warn(const_item_mutation)]` on by default
error[E0764]: mutable borrows of temporaries that have their lifetime extended until the end of the program are not allowed
--> $DIR/E0017.rs:8:30
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LL | const CR: &'static mut i32 = &mut C;
| ^^^^^^ this mutable borrow refers to such a temporary
|
= note: Temporaries in constants and statics can have their lifetime extended until the end of the program
= note: To avoid accidentally creating global mutable state, such temporaries must be immutable
= help: If you really want global mutable state, try replacing the temporary by an interior mutable `static` or a `static mut`
error[E0596]: cannot borrow immutable static item `X` as mutable
--> $DIR/E0017.rs:11:39
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LL | static STATIC_REF: &'static mut i32 = &mut X;
| ^^^^^^ cannot borrow as mutable
warning: taking a mutable reference to a `const` item
--> $DIR/E0017.rs:13:38
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LL | static CONST_REF: &'static mut i32 = &mut C;
| ^^^^^^
|
= note: each usage of a `const` item creates a new temporary
= note: the mutable reference will refer to this temporary, not the original `const` item
note: `const` item defined here
--> $DIR/E0017.rs:5:1
|
LL | const C: i32 = 2;
| ^^^^^^^^^^^^
error[E0764]: mutable borrows of temporaries that have their lifetime extended until the end of the program are not allowed
--> $DIR/E0017.rs:13:38
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LL | static CONST_REF: &'static mut i32 = &mut C;
| ^^^^^^ this mutable borrow refers to such a temporary
|
= note: Temporaries in constants and statics can have their lifetime extended until the end of the program
= note: To avoid accidentally creating global mutable state, such temporaries must be immutable
= help: If you really want global mutable state, try replacing the temporary by an interior mutable `static` or a `static mut`
error: aborting due to 3 previous errors; 2 warnings emitted
Some errors have detailed explanations: E0596, E0764.
For more information about an error, try `rustc --explain E0596`.
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