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Rollup of 13 pull requests #77210

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2ac89ff
Point at named argument not found when using `format_args_capture` in…
estebank Sep 8, 2020
094d67a
Add accessors to Command.
ehuss Sep 21, 2020
945a732
Update mdBook
camelid Sep 23, 2020
50d9663
Update cargo
ehuss Sep 24, 2020
ecf3895
Add MIPS asm! support
tesuji Sep 16, 2020
9baa601
Add `x.py setup`
jyn514 Sep 12, 2020
bab15f7
Remove std::io::lazy::Lazy in favour of SyncOnceCell
m-ou-se Sep 24, 2020
e9b25f5
Add test to check stdout flushing during shutdown.
m-ou-se Sep 24, 2020
45700a9
Drop use of Arc from Stdin and Stdout.
m-ou-se Sep 24, 2020
12ada5c
Remove TrustedLen requirement from BuilderMethods::switch
est31 Sep 24, 2020
6f9c132
Call ReentrantMutex::init() in stdout().
m-ou-se Sep 24, 2020
47843f5
update Miri
RalfJung Sep 24, 2020
257f6e5
Reopen standard streams when they are closed on Unix
tmiasko Sep 25, 2020
0d2521a
Add `const_fn_floating_point_arithmetic`
ecstatic-morse Sep 23, 2020
2049052
Put floating point arithmetic behind its own feature gate
ecstatic-morse Sep 23, 2020
6a52c09
Add new feature gate to standard library
ecstatic-morse Sep 23, 2020
b428f28
Bless tests
ecstatic-morse Sep 23, 2020
4cac90c
Move const fn floating point test out of `min_const_fn`
ecstatic-morse Sep 23, 2020
659028f
Use proper issue for `const_fn_floating_point_arithmetic`
ecstatic-morse Sep 23, 2020
187162e
Add missing code examples on slice iter types
GuillaumeGomez Sep 22, 2020
900daba
Remove stray word from `ClosureKind::extends` docs
LingMan Sep 25, 2020
4a63054
Rollup merge of #75295 - tmiasko:fds, r=Amanieu
jonas-schievink Sep 25, 2020
1097169
Rollup merge of #76485 - estebank:format_arg_capture_spans, r=davidtwco
jonas-schievink Sep 25, 2020
fb51bde
Rollup merge of #76631 - jyn514:x.py-setup, r=Mark-Simulacrum
jonas-schievink Sep 25, 2020
4564dff
Rollup merge of #76839 - lzutao:mips-asm, r=Amanieu
jonas-schievink Sep 25, 2020
493c990
Rollup merge of #77029 - ehuss:command-access, r=Mark-Simulacrum
jonas-schievink Sep 25, 2020
1a95d28
Rollup merge of #77076 - GuillaumeGomez:missing-code-examples-slice-i…
jonas-schievink Sep 25, 2020
910412e
Rollup merge of #77122 - ecstatic-morse:const-fn-arithmetic, r=RalfJu…
jonas-schievink Sep 25, 2020
ea4422c
Rollup merge of #77127 - camelid:update-mdbook, r=Dylan-DPC
jonas-schievink Sep 25, 2020
e5514af
Rollup merge of #77129 - ehuss:update-cargo, r=ehuss
jonas-schievink Sep 25, 2020
96d2c8b
Rollup merge of #77154 - fusion-engineering-forks:lazy-stdio, r=dtolnay
jonas-schievink Sep 25, 2020
4ac715d
Rollup merge of #77161 - est31:swich_len_already_trusted, r=petrochenkov
jonas-schievink Sep 25, 2020
43045ce
Rollup merge of #77166 - RalfJung:miri, r=RalfJung
jonas-schievink Sep 25, 2020
3537ee3
Rollup merge of #77204 - LingMan:patch-3, r=jonas-schievink
jonas-schievink Sep 25, 2020
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164 changes: 164 additions & 0 deletions library/core/src/slice/iter.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -319,6 +319,13 @@ pub(super) trait SplitIter: DoubleEndedIterator {
///
/// This struct is created by the [`split`] method on [slices].
///
/// # Example
///
/// ```
/// let slice = [10, 40, 33, 20];
/// let mut iter = slice.split(|num| num % 3 == 0);
/// ```
///
/// [`split`]: ../../std/primitive.slice.html#method.split
/// [slices]: ../../std/primitive.slice.html
#[stable(feature = "rust1", since = "1.0.0")]
Expand Down Expand Up @@ -434,6 +441,15 @@ impl<T, P> FusedIterator for Split<'_, T, P> where P: FnMut(&T) -> bool {}
///
/// This struct is created by the [`split_inclusive`] method on [slices].
///
/// # Example
///
/// ```
/// #![feature(split_inclusive)]
///
/// let slice = [10, 40, 33, 20];
/// let mut iter = slice.split_inclusive(|num| num % 3 == 0);
/// ```
///
/// [`split_inclusive`]: ../../std/primitive.slice.html#method.split_inclusive
/// [slices]: ../../std/primitive.slice.html
#[unstable(feature = "split_inclusive", issue = "72360")]
Expand Down Expand Up @@ -539,6 +555,13 @@ impl<T, P> FusedIterator for SplitInclusive<'_, T, P> where P: FnMut(&T) -> bool
///
/// This struct is created by the [`split_mut`] method on [slices].
///
/// # Example
///
/// ```
/// let mut v = [10, 40, 30, 20, 60, 50];
/// let iter = v.split_mut(|num| *num % 3 == 0);
/// ```
///
/// [`split_mut`]: ../../std/primitive.slice.html#method.split_mut
/// [slices]: ../../std/primitive.slice.html
#[stable(feature = "rust1", since = "1.0.0")]
Expand Down Expand Up @@ -661,6 +684,15 @@ impl<T, P> FusedIterator for SplitMut<'_, T, P> where P: FnMut(&T) -> bool {}
///
/// This struct is created by the [`split_inclusive_mut`] method on [slices].
///
/// # Example
///
/// ```
/// #![feature(split_inclusive)]
///
/// let mut v = [10, 40, 30, 20, 60, 50];
/// let iter = v.split_inclusive_mut(|num| *num % 3 == 0);
/// ```
///
/// [`split_inclusive_mut`]: ../../std/primitive.slice.html#method.split_inclusive_mut
/// [slices]: ../../std/primitive.slice.html
#[unstable(feature = "split_inclusive", issue = "72360")]
Expand Down Expand Up @@ -775,6 +807,13 @@ impl<T, P> FusedIterator for SplitInclusiveMut<'_, T, P> where P: FnMut(&T) -> b
///
/// This struct is created by the [`rsplit`] method on [slices].
///
/// # Example
///
/// ```
/// let slice = [11, 22, 33, 0, 44, 55];
/// let iter = slice.rsplit(|num| *num == 0);
/// ```
///
/// [`rsplit`]: ../../std/primitive.slice.html#method.rsplit
/// [slices]: ../../std/primitive.slice.html
#[stable(feature = "slice_rsplit", since = "1.27.0")]
Expand Down Expand Up @@ -854,6 +893,13 @@ impl<T, P> FusedIterator for RSplit<'_, T, P> where P: FnMut(&T) -> bool {}
///
/// This struct is created by the [`rsplit_mut`] method on [slices].
///
/// # Example
///
/// ```
/// let mut slice = [11, 22, 33, 0, 44, 55];
/// let iter = slice.rsplit_mut(|num| *num == 0);
/// ```
///
/// [`rsplit_mut`]: ../../std/primitive.slice.html#method.rsplit_mut
/// [slices]: ../../std/primitive.slice.html
#[stable(feature = "slice_rsplit", since = "1.27.0")]
Expand Down Expand Up @@ -966,6 +1012,13 @@ impl<T, I: SplitIter<Item = T>> Iterator for GenericSplitN<I> {
///
/// This struct is created by the [`splitn`] method on [slices].
///
/// # Example
///
/// ```
/// let slice = [10, 40, 30, 20, 60, 50];
/// let iter = slice.splitn(2, |num| *num % 3 == 0);
/// ```
///
/// [`splitn`]: ../../std/primitive.slice.html#method.splitn
/// [slices]: ../../std/primitive.slice.html
#[stable(feature = "rust1", since = "1.0.0")]
Expand Down Expand Up @@ -999,6 +1052,13 @@ where
///
/// This struct is created by the [`rsplitn`] method on [slices].
///
/// # Example
///
/// ```
/// let slice = [10, 40, 30, 20, 60, 50];
/// let iter = slice.rsplitn(2, |num| *num % 3 == 0);
/// ```
///
/// [`rsplitn`]: ../../std/primitive.slice.html#method.rsplitn
/// [slices]: ../../std/primitive.slice.html
#[stable(feature = "rust1", since = "1.0.0")]
Expand Down Expand Up @@ -1031,6 +1091,13 @@ where
///
/// This struct is created by the [`splitn_mut`] method on [slices].
///
/// # Example
///
/// ```
/// let mut slice = [10, 40, 30, 20, 60, 50];
/// let iter = slice.splitn_mut(2, |num| *num % 3 == 0);
/// ```
///
/// [`splitn_mut`]: ../../std/primitive.slice.html#method.splitn_mut
/// [slices]: ../../std/primitive.slice.html
#[stable(feature = "rust1", since = "1.0.0")]
Expand Down Expand Up @@ -1064,6 +1131,13 @@ where
///
/// This struct is created by the [`rsplitn_mut`] method on [slices].
///
/// # Example
///
/// ```
/// let mut slice = [10, 40, 30, 20, 60, 50];
/// let iter = slice.rsplitn_mut(2, |num| *num % 3 == 0);
/// ```
///
/// [`rsplitn_mut`]: ../../std/primitive.slice.html#method.rsplitn_mut
/// [slices]: ../../std/primitive.slice.html
#[stable(feature = "rust1", since = "1.0.0")]
Expand Down Expand Up @@ -1100,6 +1174,13 @@ forward_iterator! { RSplitNMut: T, &'a mut [T] }
///
/// This struct is created by the [`windows`] method on [slices].
///
/// # Example
///
/// ```
/// let slice = ['r', 'u', 's', 't'];
/// let iter = slice.windows(2);
/// ```
///
/// [`windows`]: ../../std/primitive.slice.html#method.windows
/// [slices]: ../../std/primitive.slice.html
#[derive(Debug)]
Expand Down Expand Up @@ -1239,6 +1320,13 @@ unsafe impl<'a, T> TrustedRandomAccess for Windows<'a, T> {
///
/// This struct is created by the [`chunks`] method on [slices].
///
/// # Example
///
/// ```
/// let slice = ['l', 'o', 'r', 'e', 'm'];
/// let iter = slice.chunks(2);
/// ```
///
/// [`chunks`]: ../../std/primitive.slice.html#method.chunks
/// [slices]: ../../std/primitive.slice.html
#[derive(Debug)]
Expand Down Expand Up @@ -1400,6 +1488,13 @@ unsafe impl<'a, T> TrustedRandomAccess for Chunks<'a, T> {
///
/// This struct is created by the [`chunks_mut`] method on [slices].
///
/// # Example
///
/// ```
/// let mut slice = ['l', 'o', 'r', 'e', 'm'];
/// let iter = slice.chunks_mut(2);
/// ```
///
/// [`chunks_mut`]: ../../std/primitive.slice.html#method.chunks_mut
/// [slices]: ../../std/primitive.slice.html
#[derive(Debug)]
Expand Down Expand Up @@ -1559,6 +1654,13 @@ unsafe impl<'a, T> TrustedRandomAccess for ChunksMut<'a, T> {
///
/// This struct is created by the [`chunks_exact`] method on [slices].
///
/// # Example
///
/// ```
/// let slice = ['l', 'o', 'r', 'e', 'm'];
/// let iter = slice.chunks_exact(2);
/// ```
///
/// [`chunks_exact`]: ../../std/primitive.slice.html#method.chunks_exact
/// [`remainder`]: ChunksExact::remainder
/// [slices]: ../../std/primitive.slice.html
Expand Down Expand Up @@ -1708,6 +1810,13 @@ unsafe impl<'a, T> TrustedRandomAccess for ChunksExact<'a, T> {
///
/// This struct is created by the [`chunks_exact_mut`] method on [slices].
///
/// # Example
///
/// ```
/// let mut slice = ['l', 'o', 'r', 'e', 'm'];
/// let iter = slice.chunks_exact_mut(2);
/// ```
///
/// [`chunks_exact_mut`]: ../../std/primitive.slice.html#method.chunks_exact_mut
/// [`into_remainder`]: ChunksExactMut::into_remainder
/// [slices]: ../../std/primitive.slice.html
Expand Down Expand Up @@ -1850,6 +1959,15 @@ unsafe impl<'a, T> TrustedRandomAccess for ChunksExactMut<'a, T> {
///
/// This struct is created by the [`array_windows`] method on [slices].
///
/// # Example
///
/// ```
/// #![feature(array_windows)]
///
/// let slice = [0, 1, 2, 3];
/// let iter = slice.array_windows::<2>();
/// ```
///
/// [`array_windows`]: ../../std/primitive.slice.html#method.array_windows
/// [slices]: ../../std/primitive.slice.html
#[derive(Debug, Clone, Copy)]
Expand Down Expand Up @@ -1962,6 +2080,15 @@ impl<T, const N: usize> ExactSizeIterator for ArrayWindows<'_, T, N> {
///
/// This struct is created by the [`array_chunks`] method on [slices].
///
/// # Example
///
/// ```
/// #![feature(array_chunks)]
///
/// let slice = ['l', 'o', 'r', 'e', 'm'];
/// let iter = slice.array_chunks::<2>();
/// ```
///
/// [`array_chunks`]: ../../std/primitive.slice.html#method.array_chunks
/// [`remainder`]: ArrayChunks::remainder
/// [slices]: ../../std/primitive.slice.html
Expand Down Expand Up @@ -2080,6 +2207,15 @@ unsafe impl<'a, T, const N: usize> TrustedRandomAccess for ArrayChunks<'a, T, N>
///
/// This struct is created by the [`array_chunks_mut`] method on [slices].
///
/// # Example
///
/// ```
/// #![feature(array_chunks)]
///
/// let mut slice = ['l', 'o', 'r', 'e', 'm'];
/// let iter = slice.array_chunks_mut::<2>();
/// ```
///
/// [`array_chunks_mut`]: ../../std/primitive.slice.html#method.array_chunks_mut
/// [`into_remainder`]: ../../std/slice/struct.ArrayChunksMut.html#method.into_remainder
/// [slices]: ../../std/primitive.slice.html
Expand Down Expand Up @@ -2190,6 +2326,13 @@ unsafe impl<'a, T, const N: usize> TrustedRandomAccess for ArrayChunksMut<'a, T,
///
/// This struct is created by the [`rchunks`] method on [slices].
///
/// # Example
///
/// ```
/// let slice = ['l', 'o', 'r', 'e', 'm'];
/// let iter = slice.rchunks(2);
/// ```
///
/// [`rchunks`]: ../../std/primitive.slice.html#method.rchunks
/// [slices]: ../../std/primitive.slice.html
#[derive(Debug)]
Expand Down Expand Up @@ -2347,6 +2490,13 @@ unsafe impl<'a, T> TrustedRandomAccess for RChunks<'a, T> {
///
/// This struct is created by the [`rchunks_mut`] method on [slices].
///
/// # Example
///
/// ```
/// let mut slice = ['l', 'o', 'r', 'e', 'm'];
/// let iter = slice.rchunks_mut(2);
/// ```
///
/// [`rchunks_mut`]: ../../std/primitive.slice.html#method.rchunks_mut
/// [slices]: ../../std/primitive.slice.html
#[derive(Debug)]
Expand Down Expand Up @@ -2503,6 +2653,13 @@ unsafe impl<'a, T> TrustedRandomAccess for RChunksMut<'a, T> {
///
/// This struct is created by the [`rchunks_exact`] method on [slices].
///
/// # Example
///
/// ```
/// let slice = ['l', 'o', 'r', 'e', 'm'];
/// let iter = slice.rchunks_exact(2);
/// ```
///
/// [`rchunks_exact`]: ../../std/primitive.slice.html#method.rchunks_exact
/// [`remainder`]: ChunksExact::remainder
/// [slices]: ../../std/primitive.slice.html
Expand Down Expand Up @@ -2656,6 +2813,13 @@ unsafe impl<'a, T> TrustedRandomAccess for RChunksExact<'a, T> {
///
/// This struct is created by the [`rchunks_exact_mut`] method on [slices].
///
/// # Example
///
/// ```
/// let mut slice = ['l', 'o', 'r', 'e', 'm'];
/// let iter = slice.rchunks_exact_mut(2);
/// ```
///
/// [`rchunks_exact_mut`]: ../../std/primitive.slice.html#method.rchunks_exact_mut
/// [`into_remainder`]: ChunksExactMut::into_remainder
/// [slices]: ../../std/primitive.slice.html
Expand Down