github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 17:47:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

rust: alloc: add doc test for Vec::extend_with

Browse Source 
Add a doc test for `Vec::extend_with` demonstrating basic usage and the
zero-length case.

Signed-off-by: Hsiu Che Yu <yu.whisper.personal@gmail.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://patch.msgid.link/a02bc604cde78ba505441a5555400e6f575e8a8a.1777111268.git.yu.whisper.personal@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
This commit is contained in:
Hsiu Che Yu 2026-04-25 18:16:18 +08:00 committed by Danilo Krummrich
parent 75619f2df7
commit 802ca0008b
1 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
rust/kernel/alloc/kvec.rs
View File

@ -849,6 +849,24 @@ pub fn shrink_to(&mut self, min_capacity: usize, flags: Flags) -> Result<(), All
impl<T: Clone, A: Allocator> Vec<T, A> {
/// Extend the vector by `n` clones of `value`.
///
/// # Examples
///
/// ```
/// let mut v = KVec::new();
/// v.push(1, GFP_KERNEL)?;
///
/// v.extend_with(3, 5, GFP_KERNEL)?;
/// assert_eq!(&v, &[1, 5, 5, 5]);
///
/// v.extend_with(2, 8, GFP_KERNEL)?;
/// assert_eq!(&v, &[1, 5, 5, 5, 8, 8]);
///
/// v.extend_with(0, 3, GFP_KERNEL)?;
/// assert_eq!(&v, &[1, 5, 5, 5, 8, 8]);
///
/// # Ok::<(), Error>(())
/// ```
pub fn extend_with(&mut self, n: usize, value: T, flags: Flags) -> Result<(), AllocError> {
if n == 0 {
return Ok(());