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Auto merge of #51151 - sdroege:exact-chunks-docs-order, r=dtolnay

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Move slice::exact_chunks directly above exact_chunks_mut for more con…

…sistent docs order

See https://github.com/rust-lang/rust/issues/47115#issuecomment-392532855
This commit is contained in:
bors 2018-06-04 07:16:36 +00:00
commit 6eafab06cf
1 changed files with 35 additions and 35 deletions
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70
src/libcore/slice/mod.rs
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@ -691,41 +691,6 @@ pub fn chunks(&self, chunk_size: usize) -> Chunks<T> {
Chunks { v: self, chunk_size: chunk_size }
}
/// Returns an iterator over `chunk_size` elements of the slice at a
/// time. The chunks are slices and do not overlap. If `chunk_size` does
/// not divide the length of the slice, then the last up to `chunk_size-1`
/// elements will be omitted.
///
/// Due to each chunk having exactly `chunk_size` elements, the compiler
/// can often optimize the resulting code better than in the case of
/// [`chunks`].
///
/// # Panics
///
/// Panics if `chunk_size` is 0.
///
/// # Examples
///
/// ```
/// #![feature(exact_chunks)]
///
/// let slice = ['l', 'o', 'r', 'e', 'm'];
/// let mut iter = slice.exact_chunks(2);
/// assert_eq!(iter.next().unwrap(), &['l', 'o']);
/// assert_eq!(iter.next().unwrap(), &['r', 'e']);
/// assert!(iter.next().is_none());
/// ```
///
/// [`chunks`]: #method.chunks
#[unstable(feature = "exact_chunks", issue = "47115")]
#[inline]
pub fn exact_chunks(&self, chunk_size: usize) -> ExactChunks<T> {
assert!(chunk_size != 0);
let rem = self.len() % chunk_size;
let len = self.len() - rem;
ExactChunks { v: &self[..len], chunk_size: chunk_size}
}
/// Returns an iterator over `chunk_size` elements of the slice at a time.
/// The chunks are mutable slices, and do not overlap. If `chunk_size` does
/// not divide the length of the slice, then the last chunk will not
@ -761,6 +726,41 @@ pub fn chunks_mut(&mut self, chunk_size: usize) -> ChunksMut<T> {
ChunksMut { v: self, chunk_size: chunk_size }
}
/// Returns an iterator over `chunk_size` elements of the slice at a
/// time. The chunks are slices and do not overlap. If `chunk_size` does
/// not divide the length of the slice, then the last up to `chunk_size-1`
/// elements will be omitted.
///
/// Due to each chunk having exactly `chunk_size` elements, the compiler
/// can often optimize the resulting code better than in the case of
/// [`chunks`].
///
/// # Panics
///
/// Panics if `chunk_size` is 0.
///
/// # Examples
///
/// ```
/// #![feature(exact_chunks)]
///
/// let slice = ['l', 'o', 'r', 'e', 'm'];
/// let mut iter = slice.exact_chunks(2);
/// assert_eq!(iter.next().unwrap(), &['l', 'o']);
/// assert_eq!(iter.next().unwrap(), &['r', 'e']);
/// assert!(iter.next().is_none());
/// ```
///
/// [`chunks`]: #method.chunks
#[unstable(feature = "exact_chunks", issue = "47115")]
#[inline]
pub fn exact_chunks(&self, chunk_size: usize) -> ExactChunks<T> {
assert!(chunk_size != 0);
let rem = self.len() % chunk_size;
let len = self.len() - rem;
ExactChunks { v: &self[..len], chunk_size: chunk_size}
}
/// Returns an iterator over `chunk_size` elements of the slice at a time.
/// The chunks are mutable slices, and do not overlap. If `chunk_size` does
/// not divide the length of the slice, then the last up to `chunk_size-1`