user0/rust
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add #[must_use] and update cloned` documentation

Browse source 
Signed-off-by: Connor Tsui <connor.tsui20@gmail.com>
Co-authored-by: Jonas Böttiger <jonasboettiger@icloud.com>
This commit is contained in:
Connor Tsui 2025-08-30 11:15:41 +01:00
parent 9c1255f0a4
commit 114c0c2fef
No known key found for this signature in database
1 changed files with 6 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

8
library/core/src/ops/range.rs
View file

@ -751,6 +751,7 @@ impl<T: Copy> Bound<&T> {
/// assert_eq!((1..12).start_bound().copied(), Included(1));
/// ```
#[unstable(feature = "bound_copied", issue = "145966")]
#[must_use]
pub fn copied(self) -> Bound<T> {
match self {
Bound::Unbounded => Bound::Unbounded,
@ -769,8 +770,11 @@ impl<T: Clone> Bound<&T> {
/// use std::ops::Bound::*;
/// use std::ops::RangeBounds;
///
/// assert_eq!((1..12).start_bound(), Included(&1));
/// assert_eq!((1..12).start_bound().cloned(), Included(1));
/// let a1 = String::from("a");
/// let (a2, a3, a4) = (a1.clone(), a1.clone(), a1.clone());
///
/// assert_eq!(Included(&a1), (a2..).start_bound());
/// assert_eq!(Included(a3), (a4..).start_bound().cloned());
/// ```
#[must_use = "`self` will be dropped if the result is not used"]
#[stable(feature = "bound_cloned", since = "1.55.0")]