blob: 0a48d5756eb41b8671ad2a604c4ff5d94f019509 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
|
error[E0282]: type annotations needed
--> $DIR/sort_by_key.rs:3:40
|
LL | lst.sort_by_key(|&(v, _)| v.iter().sum());
| ^^^ cannot infer type of the type parameter `S` declared on the associated function `sum`
|
help: consider specifying the generic argument
|
LL | lst.sort_by_key(|&(v, _)| v.iter().sum::<S>());
| +++++
error: aborting due to previous error
For more information about this error, try `rustc --explain E0282`.
|
