diff options
Diffstat (limited to 'src/doc/book/listings/ch09-error-handling')
-rw-r--r-- | src/doc/book/listings/ch09-error-handling/listing-09-10/output.txt | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/src/doc/book/listings/ch09-error-handling/listing-09-10/output.txt b/src/doc/book/listings/ch09-error-handling/listing-09-10/output.txt index 26e4ff8cc..75b9cf2e3 100644 --- a/src/doc/book/listings/ch09-error-handling/listing-09-10/output.txt +++ b/src/doc/book/listings/ch09-error-handling/listing-09-10/output.txt @@ -3,11 +3,10 @@ $ cargo run error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) --> src/main.rs:4:48 | -3 | / fn main() { -4 | | let greeting_file = File::open("hello.txt")?; - | | ^ cannot use the `?` operator in a function that returns `()` -5 | | } - | |_- this function should return `Result` or `Option` to accept `?` +3 | fn main() { + | --------- this function should return `Result` or `Option` to accept `?` +4 | let greeting_file = File::open("hello.txt")?; + | ^ cannot use the `?` operator in a function that returns `()` | = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()` |