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Antoine Dupuis 2024-11-14 09:14:40 +01:00
parent d5cae8ff59
commit fc0cd8f0f8
1 changed files with 9 additions and 9 deletions
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18
solutions/13_error_handling/errors6.rs
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@ -29,15 +29,15 @@ impl ParsePosNonzeroError {
} }
} }
/// As an alternative solution, implementing the `From` trait allows for the // As an alternative solution, implementing the `From` trait allows for the
/// automatic conversion from a `ParseIntError` into a `ParsePosNonzeroError` // automatic conversion from a `ParseIntError` into a `ParsePosNonzeroError`
/// using the `?` operator, without the need to call `map_err`. // using the `?` operator, without the need to call `map_err`.
/// //
/// ``` // ```
/// let x: i64 = s.parse()?; // let x: i64 = s.parse()?;
/// ``` // ```
/// //
/// Traits like `From` will be dealt with in later exercises. // Traits like `From` will be dealt with in later exercises.
impl From<ParseIntError> for ParsePosNonzeroError { impl From<ParseIntError> for ParsePosNonzeroError {
fn from(err: ParseIntError) -> Self { fn from(err: ParseIntError) -> Self {
ParsePosNonzeroError::ParseInt(err) ParsePosNonzeroError::ParseInt(err)