finish errors5

LearningOS · Jan 27, 2025 · 9ee5008 · 9ee5008
1 parent 9a6585d
commit 9ee5008
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/exercises/error_handling/errors5.rs b/exercises/error_handling/errors5.rs
@@ -29,10 +29,11 @@ use std::fmt;
 use std::num::ParseIntError;
 
 // TODO: update the return type of `main()` to make this compile.
-fn main() -> Result<(), Box<dyn ???>> {
+fn main() -> Result<(), Box<dyn std::error::Error>> {
     let pretend_user_input = "42";
-    let x: i64 = pretend_user_input.parse()?;
-    println!("output={:?}", PositiveNonzeroInteger::new(x)?);
+    let x: i64 = pretend_user_input.parse().map_err(|e| Box::new(e) as Box<dyn std::error::Error>)?;
+    let result = PositiveNonzeroInteger::new(x).map_err(|e| Box::new(e) as Box<dyn std::error::Error>)?;
+    println!("output={:?}", result);
     Ok(())
 }