mathieu/granite-rust
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Rollup merge of #109337 - frengor:collect_into_doc, r=scottmcm

Browse source 
Improve `Iterator::collect_into` documentation

This improves the examples in the documentation of `Iterator::collect_into`, replacing the usages of `println!` with `assert_eq!` as suggested on [IRLO](https://internals.rust-lang.org/t/18534/9).
This commit is contained in:
Matthias Krüger 2023-03-20 07:10:33 +01:00 • committed by GitHub
commit fb4f015ea3
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
library/core/src/iter/traits/iterator.rs
View file

@ -2003,7 +2003,7 @@ pub trait Iterator {
/// a.iter().map(|&x| x * 2).collect_into(&mut vec); /// a.iter().map(|&x| x * 2).collect_into(&mut vec);
/// a.iter().map(|&x| x * 10).collect_into(&mut vec); /// a.iter().map(|&x| x * 10).collect_into(&mut vec);
/// ///
/// assert_eq!(vec![0, 1, 2, 4, 6, 10, 20, 30], vec); /// assert_eq!(vec, vec![0, 1, 2, 4, 6, 10, 20, 30]);
/// ``` /// ```
/// ///
/// `Vec` can have a manual set capacity to avoid reallocating it: /// `Vec` can have a manual set capacity to avoid reallocating it:
@ -2018,7 +2018,7 @@ pub trait Iterator {
/// a.iter().map(|&x| x * 10).collect_into(&mut vec); /// a.iter().map(|&x| x * 10).collect_into(&mut vec);
/// ///
/// assert_eq!(6, vec.capacity()); /// assert_eq!(6, vec.capacity());
/// println!("{:?}", vec); /// assert_eq!(vec, vec![2, 4, 6, 10, 20, 30]);
/// ``` /// ```
/// ///
/// The returned mutable reference can be used to continue the call chain: /// The returned mutable reference can be used to continue the call chain:
@ -2032,12 +2032,12 @@ pub trait Iterator {
/// let count = a.iter().collect_into(&mut vec).iter().count(); /// let count = a.iter().collect_into(&mut vec).iter().count();
/// ///
/// assert_eq!(count, vec.len()); /// assert_eq!(count, vec.len());
/// println!("Vec len is {}", count); /// assert_eq!(vec, vec![1, 2, 3]);
/// ///
/// let count = a.iter().collect_into(&mut vec).iter().count(); /// let count = a.iter().collect_into(&mut vec).iter().count();
/// ///
/// assert_eq!(count, vec.len()); /// assert_eq!(count, vec.len());
/// println!("Vec len now is {}", count); /// assert_eq!(vec, vec![1, 2, 3, 1, 2, 3]);
/// ``` /// ```
#[inline] #[inline]
#[unstable(feature = "iter_collect_into", reason = "new API", issue = "94780")] #[unstable(feature = "iter_collect_into", reason = "new API", issue = "94780")]