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Rollup merge of #105584 - raffimolero:patch-1, r=JohnTitor

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add assert messages if chunks/windows are length 0
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Yuki Okushi 2022-12-22 08:32:09 +09:00 committed by GitHub
commit 342d1b7f01
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1 changed files with 9 additions and 9 deletions
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18
library/core/src/slice/mod.rs
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@ -893,7 +893,7 @@ impl<T> [T] {
#[stable(feature = "chunks_exact", since = "1.31.0")]
#[inline]
pub fn chunks_exact(&self, chunk_size: usize) -> ChunksExact<'_, T> {
assert_ne!(chunk_size, 0);
assert_ne!(chunk_size, 0, "chunks cannot have a size of zero");
ChunksExact::new(self, chunk_size)
}
@ -935,7 +935,7 @@ impl<T> [T] {
#[stable(feature = "chunks_exact", since = "1.31.0")]
#[inline]
pub fn chunks_exact_mut(&mut self, chunk_size: usize) -> ChunksExactMut<'_, T> {
assert_ne!(chunk_size, 0);
assert_ne!(chunk_size, 0, "chunks cannot have a size of zero");
ChunksExactMut::new(self, chunk_size)
}
@ -1017,7 +1017,7 @@ impl<T> [T] {
#[inline]
#[must_use]
pub fn as_chunks<const N: usize>(&self) -> (&[[T; N]], &[T]) {
assert_ne!(N, 0);
assert_ne!(N, 0, "chunks cannot have a size of zero");
let len = self.len() / N;
let (multiple_of_n, remainder) = self.split_at(len * N);
// SAFETY: We already panicked for zero, and ensured by construction
@ -1048,7 +1048,7 @@ impl<T> [T] {
#[inline]
#[must_use]
pub fn as_rchunks<const N: usize>(&self) -> (&[T], &[[T; N]]) {
assert_ne!(N, 0);
assert_ne!(N, 0, "chunks cannot have a size of zero");
let len = self.len() / N;
let (remainder, multiple_of_n) = self.split_at(self.len() - len * N);
// SAFETY: We already panicked for zero, and ensured by construction
@ -1087,7 +1087,7 @@ impl<T> [T] {
#[unstable(feature = "array_chunks", issue = "74985")]
#[inline]
pub fn array_chunks<const N: usize>(&self) -> ArrayChunks<'_, T, N> {
assert_ne!(N, 0);
assert_ne!(N, 0, "chunks cannot have a size of zero");
ArrayChunks::new(self)
}
@ -1166,7 +1166,7 @@ impl<T> [T] {
#[inline]
#[must_use]
pub fn as_chunks_mut<const N: usize>(&mut self) -> (&mut [[T; N]], &mut [T]) {
assert_ne!(N, 0);
assert_ne!(N, 0, "chunks cannot have a size of zero");
let len = self.len() / N;
let (multiple_of_n, remainder) = self.split_at_mut(len * N);
// SAFETY: We already panicked for zero, and ensured by construction
@ -1203,7 +1203,7 @@ impl<T> [T] {
#[inline]
#[must_use]
pub fn as_rchunks_mut<const N: usize>(&mut self) -> (&mut [T], &mut [[T; N]]) {
assert_ne!(N, 0);
assert_ne!(N, 0, "chunks cannot have a size of zero");
let len = self.len() / N;
let (remainder, multiple_of_n) = self.split_at_mut(self.len() - len * N);
// SAFETY: We already panicked for zero, and ensured by construction
@ -1244,7 +1244,7 @@ impl<T> [T] {
#[unstable(feature = "array_chunks", issue = "74985")]
#[inline]
pub fn array_chunks_mut<const N: usize>(&mut self) -> ArrayChunksMut<'_, T, N> {
assert_ne!(N, 0);
assert_ne!(N, 0, "chunks cannot have a size of zero");
ArrayChunksMut::new(self)
}
@ -1276,7 +1276,7 @@ impl<T> [T] {
#[unstable(feature = "array_windows", issue = "75027")]
#[inline]
pub fn array_windows<const N: usize>(&self) -> ArrayWindows<'_, T, N> {
assert_ne!(N, 0);
assert_ne!(N, 0, "windows cannot have a size of zero");
ArrayWindows::new(self)
}