Fix docs for `core::result::Result::map`.
`reader.read_line()` includes trailing newline char, which makes `from_str` always return `None`.
This commit is contained in:
parent
5527c5dc06
commit
cf4864a7a5
|
@ -432,11 +432,13 @@ impl<T, E> Result<T, E> {
|
|||
/// let line: IoResult<String> = reader.read_line();
|
||||
/// // Convert the string line to a number using `map` and `from_str`
|
||||
/// let val: IoResult<int> = line.map(|line| {
|
||||
/// from_str::<int>(line.as_slice()).unwrap_or(0)
|
||||
/// from_str::<int>(line.as_slice().trim_right()).unwrap_or(0)
|
||||
/// });
|
||||
/// // Add the value if there were no errors, otherwise add 0
|
||||
/// sum += val.ok().unwrap_or(0);
|
||||
/// }
|
||||
///
|
||||
/// assert!(sum == 10);
|
||||
/// ~~~
|
||||
#[inline]
|
||||
pub fn map<U>(self, op: |T| -> U) -> Result<U,E> {
|
||||
|
|
Loading…
Reference in New Issue