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update the return type

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Hariettemaina 2023-05-25 11:01:55 +03:00
parent 2e55059a99
commit 8ef0d03cf1
1 changed files with 2 additions and 2 deletions
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4
exercises/error_handling/errors5.rs
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@ -16,14 +16,14 @@
// Execute `rustlings hint errors5` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint errors5` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
use std::error; use std::error;
use std::fmt; use std::fmt;
use std::num::ParseIntError; use std::num::ParseIntError;
// TODO: update the return type of `main()` to make this compile. // TODO: update the return type of `main()` to make this compile.
fn main() -> Result<(), Box<dyn ???>> { fn main() -> Result<(), Box<dyn error::Error>> {
let pretend_user_input = "42"; let pretend_user_input = "42";
let x: i64 = pretend_user_input.parse()?; let x: i64 = pretend_user_input.parse()?;
println!("output={:?}", PositiveNonzeroInteger::new(x)?); println!("output={:?}", PositiveNonzeroInteger::new(x)?);