2019-06-21 23:30:24 +00:00
warning: denote infinite loops with `loop { ... }`
--> $DIR/liveness-move-in-while.rs:8:9
|
LL | while true { while true { while true { x = y; x.clone(); } } }
| ^^^^^^^^^^ help: use `loop`
|
2019-07-16 20:17:38 +00:00
= note: `#[warn(while_true)]` on by default
2019-06-21 23:30:24 +00:00
warning: denote infinite loops with `loop { ... }`
--> $DIR/liveness-move-in-while.rs:8:22
|
LL | while true { while true { while true { x = y; x.clone(); } } }
| ^^^^^^^^^^ help: use `loop`
warning: denote infinite loops with `loop { ... }`
--> $DIR/liveness-move-in-while.rs:8:35
|
LL | while true { while true { while true { x = y; x.clone(); } } }
| ^^^^^^^^^^ help: use `loop`
2019-04-22 07:40:08 +00:00
error[E0382]: borrow of moved value: `y`
2018-12-25 15:56:47 +00:00
--> $DIR/liveness-move-in-while.rs:7:24
2018-08-08 12:28:26 +00:00
|
2021-08-25 00:39:40 +00:00
LL | let y: Box<isize> = 42.into();
2020-09-02 07:40:56 +00:00
| - move occurs because `y` has type `Box<isize>`, which does not implement the `Copy` trait
2019-04-22 07:40:08 +00:00
...
2022-11-03 04:22:24 +00:00
LL | loop {
| ---- inside of this loop
2019-03-09 12:03:44 +00:00
LL | println!("{}", y);
2019-04-22 07:40:08 +00:00
| ^ value borrowed here after move
2018-08-08 12:28:26 +00:00
LL | while true { while true { while true { x = y; x.clone(); } } }
2022-11-03 04:22:24 +00:00
| ---------- ---------- ---------- - value moved here, in previous iteration of loop
| | | |
| | | inside of this loop
| | inside of this loop
| inside of this loop
2021-10-21 14:01:16 +00:00
|
2022-06-21 02:25:52 +00:00
= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
2022-11-03 04:22:24 +00:00
help: consider cloning the value if the performance cost is acceptable
|
LL | while true { while true { while true { x = y.clone(); x.clone(); } } }
| ++++++++
2018-08-08 12:28:26 +00:00
2020-03-11 15:30:09 +00:00
error: aborting due to previous error; 3 warnings emitted
2018-08-08 12:28:26 +00:00
For more information about this error, try `rustc --explain E0382`.