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|
error: lifetime may not live long enough
--> $DIR/type-check-pointer-comparisons.rs:4:5
|
LL | fn compare_const<'a, 'b>(x: *const &mut &'a i32, y: *const &mut &'b i32) {
| -- -- lifetime `'b` defined here
| |
| lifetime `'a` defined here
LL | x == y;
| ^ requires that `'a` must outlive `'b`
|
= help: consider adding the following bound: `'a: 'b`
= note: requirement occurs because of a mutable reference to `&i32`
= note: mutable references are invariant over their type parameter
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
error: lifetime may not live long enough
--> $DIR/type-check-pointer-comparisons.rs:4:10
|
LL | fn compare_const<'a, 'b>(x: *const &mut &'a i32, y: *const &mut &'b i32) {
| -- -- lifetime `'b` defined here
| |
| lifetime `'a` defined here
LL | x == y;
| ^ requires that `'b` must outlive `'a`
|
= help: consider adding the following bound: `'b: 'a`
= note: requirement occurs because of a mutable reference to `&i32`
= note: mutable references are invariant over their type parameter
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
help: `'a` and `'b` must be the same: replace one with the other
error: lifetime may not live long enough
--> $DIR/type-check-pointer-comparisons.rs:10:5
|
LL | fn compare_mut<'a, 'b>(x: *mut &'a i32, y: *mut &'b i32) {
| -- -- lifetime `'b` defined here
| |
| lifetime `'a` defined here
LL | x == y;
| ^ requires that `'a` must outlive `'b`
|
= help: consider adding the following bound: `'a: 'b`
= note: requirement occurs because of a mutable pointer to `&i32`
= note: mutable pointers are invariant over their type parameter
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
error: lifetime may not live long enough
--> $DIR/type-check-pointer-comparisons.rs:10:10
|
LL | fn compare_mut<'a, 'b>(x: *mut &'a i32, y: *mut &'b i32) {
| -- -- lifetime `'b` defined here
| |
| lifetime `'a` defined here
LL | x == y;
| ^ requires that `'b` must outlive `'a`
|
= help: consider adding the following bound: `'b: 'a`
= note: requirement occurs because of a mutable pointer to `&i32`
= note: mutable pointers are invariant over their type parameter
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
help: `'a` and `'b` must be the same: replace one with the other
error: lifetime may not live long enough
--> $DIR/type-check-pointer-comparisons.rs:16:5
|
LL | fn compare_fn_ptr<'a, 'b, 'c>(f: fn(&'c mut &'a i32), g: fn(&'c mut &'b i32)) {
| -- -- lifetime `'b` defined here
| |
| lifetime `'a` defined here
LL | f == g;
| ^ requires that `'a` must outlive `'b`
|
= help: consider adding the following bound: `'a: 'b`
= note: requirement occurs because of a mutable reference to `&i32`
= note: mutable references are invariant over their type parameter
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
error: lifetime may not live long enough
--> $DIR/type-check-pointer-comparisons.rs:16:10
|
LL | fn compare_fn_ptr<'a, 'b, 'c>(f: fn(&'c mut &'a i32), g: fn(&'c mut &'b i32)) {
| -- -- lifetime `'b` defined here
| |
| lifetime `'a` defined here
LL | f == g;
| ^ requires that `'b` must outlive `'a`
|
= help: consider adding the following bound: `'b: 'a`
= note: requirement occurs because of a mutable reference to `&i32`
= note: mutable references are invariant over their type parameter
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
help: `'a` and `'b` must be the same: replace one with the other
error: aborting due to 6 previous errors
|
