| warning: taking a mutable reference to a `const` item |
| --> $DIR/E0017.rs:5:30 |
| | |
| LL | const CR: &'static mut i32 = &mut C; |
| | ^^^^^^ |
| | |
| = note: `#[warn(const_item_mutation)]` on by default |
| = 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:2:1 |
| | |
| LL | const C: i32 = 2; |
| | ^^^^^^^^^^^^^^^^^ |
| |
| error[E0764]: mutable references are not allowed in constants |
| --> $DIR/E0017.rs:5:30 |
| | |
| LL | const CR: &'static mut i32 = &mut C; |
| | ^^^^^^ `&mut` is only allowed in `const fn` |
| |
| error[E0019]: static contains unimplemented expression type |
| --> $DIR/E0017.rs:7:39 |
| | |
| LL | static STATIC_REF: &'static mut i32 = &mut X; |
| | ^^^^^^ |
| | |
| = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable |
| |
| error[E0764]: mutable references are not allowed in statics |
| --> $DIR/E0017.rs:7:39 |
| | |
| LL | static STATIC_REF: &'static mut i32 = &mut X; |
| | ^^^^^^ `&mut` is only allowed in `const fn` |
| |
| error[E0596]: cannot borrow immutable static item `X` as mutable |
| --> $DIR/E0017.rs:7:39 |
| | |
| 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:10:38 |
| | |
| 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:2:1 |
| | |
| LL | const C: i32 = 2; |
| | ^^^^^^^^^^^^^^^^^ |
| |
| error[E0764]: mutable references are not allowed in statics |
| --> $DIR/E0017.rs:10:38 |
| | |
| LL | static CONST_REF: &'static mut i32 = &mut C; |
| | ^^^^^^ `&mut` is only allowed in `const fn` |
| |
| error[E0764]: mutable references are not allowed in statics |
| --> $DIR/E0017.rs:12:52 |
| | |
| LL | static STATIC_MUT_REF: &'static mut i32 = unsafe { &mut M }; |
| | ^^^^^^ `&mut` is only allowed in `const fn` |
| |
| error: aborting due to 6 previous errors; 2 warnings emitted |
| |
| Some errors have detailed explanations: E0019, E0596, E0764. |
| For more information about an error, try `rustc --explain E0019`. |