pub struct IntoIter<T, const N: usize> { /* private fields */ }
Expand description
A by-value array iterator.
Implementations
sourceimpl<T, const N: usize> IntoIter<T, N>
impl<T, const N: usize> IntoIter<T, N>
sourcepub fn new(array: [T; N]) -> IntoIter<T, N>ⓘNotable traits for IntoIter<T, N>impl<T, const N: usize> Iterator for IntoIter<T, N> type Item = T;
👎Deprecated since 1.59.0: use IntoIterator::into_iter
instead
pub fn new(array: [T; N]) -> IntoIter<T, N>ⓘNotable traits for IntoIter<T, N>impl<T, const N: usize> Iterator for IntoIter<T, N> type Item = T;
use IntoIterator::into_iter
instead
Creates a new iterator over the given array
.
const: unstable · sourcepub unsafe fn new_unchecked(
buffer: [MaybeUninit<T>; N],
initialized: Range<usize>
) -> IntoIter<T, N>ⓘNotable traits for IntoIter<T, N>impl<T, const N: usize> Iterator for IntoIter<T, N> type Item = T;
🔬This is a nightly-only experimental API. (array_into_iter_constructors
#91583)
pub unsafe fn new_unchecked(
buffer: [MaybeUninit<T>; N],
initialized: Range<usize>
) -> IntoIter<T, N>ⓘNotable traits for IntoIter<T, N>impl<T, const N: usize> Iterator for IntoIter<T, N> type Item = T;
array_into_iter_constructors
#91583)Creates an iterator over the elements in a partially-initialized buffer.
If you have a fully-initialized array, then use IntoIterator
.
But this is useful for returning partial results from unsafe code.
Safety
- The
buffer[initialized]
elements must all be initialized. - The range must be canonical, with
initialized.start <= initialized.end
. - The range must be in-bounds for the buffer, with
initialized.end <= N
. (Like how indexing[0][100..100]
fails despite the range being empty.)
It’s sound to have more elements initialized than mentioned, though that will most likely result in them being leaked.
Examples
#![feature(array_into_iter_constructors)]
#![feature(maybe_uninit_array_assume_init)]
#![feature(maybe_uninit_uninit_array)]
use std::array::IntoIter;
use std::mem::MaybeUninit;
fn next_chunk<T: Copy, const N: usize>(
it: &mut impl Iterator<Item = T>,
) -> Result<[T; N], IntoIter<T, N>> {
let mut buffer = MaybeUninit::uninit_array();
let mut i = 0;
while i < N {
match it.next() {
Some(x) => {
buffer[i].write(x);
i += 1;
}
None => {
// SAFETY: We've initialized the first `i` items
unsafe {
return Err(IntoIter::new_unchecked(buffer, 0..i));
}
}
}
}
// SAFETY: We've initialized all N items
unsafe { Ok(MaybeUninit::array_assume_init(buffer)) }
}
let r: [_; 4] = next_chunk(&mut (10..16)).unwrap();
assert_eq!(r, [10, 11, 12, 13]);
let r: IntoIter<_, 40> = next_chunk(&mut (10..16)).unwrap_err();
assert_eq!(r.collect::<Vec<_>>(), vec![10, 11, 12, 13, 14, 15]);
Runconst: unstable · sourcepub fn empty() -> IntoIter<T, N>ⓘNotable traits for IntoIter<T, N>impl<T, const N: usize> Iterator for IntoIter<T, N> type Item = T;
🔬This is a nightly-only experimental API. (array_into_iter_constructors
#91583)
pub fn empty() -> IntoIter<T, N>ⓘNotable traits for IntoIter<T, N>impl<T, const N: usize> Iterator for IntoIter<T, N> type Item = T;
array_into_iter_constructors
#91583)Creates an iterator over T
which returns no elements.
If you just need an empty iterator, then use
iter::empty()
instead.
And if you need an empty array, use []
.
But this is useful when you need an array::IntoIter<T, N>
specifically.
Examples
#![feature(array_into_iter_constructors)]
use std::array::IntoIter;
let empty = IntoIter::<i32, 3>::empty();
assert_eq!(empty.len(), 0);
assert_eq!(empty.as_slice(), &[]);
let empty = IntoIter::<std::convert::Infallible, 200>::empty();
assert_eq!(empty.len(), 0);
Run[1, 2].into_iter()
and [].into_iter()
have different types
#![feature(array_into_iter_constructors)]
use std::array::IntoIter;
pub fn get_bytes(b: bool) -> IntoIter<i8, 4> {
if b {
[1, 2, 3, 4].into_iter()
} else {
[].into_iter() // error[E0308]: mismatched types
}
}
But using this method you can get an empty iterator of appropriate size:
#![feature(array_into_iter_constructors)]
use std::array::IntoIter;
pub fn get_bytes(b: bool) -> IntoIter<i8, 4> {
if b {
[1, 2, 3, 4].into_iter()
} else {
IntoIter::empty()
}
}
assert_eq!(get_bytes(true).collect::<Vec<_>>(), vec![1, 2, 3, 4]);
assert_eq!(get_bytes(false).collect::<Vec<_>>(), vec![]);
RunTrait Implementations
1.40.0 · sourceimpl<T, const N: usize> DoubleEndedIterator for IntoIter<T, N>
impl<T, const N: usize> DoubleEndedIterator for IntoIter<T, N>
sourcefn next_back(&mut self) -> Option<<IntoIter<T, N> as Iterator>::Item>
fn next_back(&mut self) -> Option<<IntoIter<T, N> as Iterator>::Item>
sourcefn rfold<Acc, Fold>(self, init: Acc, rfold: Fold) -> Accwhere
Fold: FnMut(Acc, <IntoIter<T, N> as Iterator>::Item) -> Acc,
fn rfold<Acc, Fold>(self, init: Acc, rfold: Fold) -> Accwhere
Fold: FnMut(Acc, <IntoIter<T, N> as Iterator>::Item) -> Acc,
sourcefn advance_back_by(&mut self, n: usize) -> Result<(), usize>
fn advance_back_by(&mut self, n: usize) -> Result<(), usize>
iter_advance_by
#77404)n
elements. Read more1.37.0 · sourcefn nth_back(&mut self, n: usize) -> Option<Self::Item>
fn nth_back(&mut self, n: usize) -> Option<Self::Item>
n
th element from the end of the iterator. Read more1.40.0 · sourceimpl<T, const N: usize> ExactSizeIterator for IntoIter<T, N>
impl<T, const N: usize> ExactSizeIterator for IntoIter<T, N>
1.40.0 · sourceimpl<T, const N: usize> Iterator for IntoIter<T, N>
impl<T, const N: usize> Iterator for IntoIter<T, N>
type Item = T
type Item = T
sourcefn next(&mut self) -> Option<<IntoIter<T, N> as Iterator>::Item>
fn next(&mut self) -> Option<<IntoIter<T, N> as Iterator>::Item>
sourcefn size_hint(&self) -> (usize, Option<usize>)
fn size_hint(&self) -> (usize, Option<usize>)
sourcefn fold<Acc, Fold>(self, init: Acc, fold: Fold) -> Accwhere
Fold: FnMut(Acc, <IntoIter<T, N> as Iterator>::Item) -> Acc,
fn fold<Acc, Fold>(self, init: Acc, fold: Fold) -> Accwhere
Fold: FnMut(Acc, <IntoIter<T, N> as Iterator>::Item) -> Acc,
sourcefn count(self) -> usize
fn count(self) -> usize
sourcefn last(self) -> Option<<IntoIter<T, N> as Iterator>::Item>
fn last(self) -> Option<<IntoIter<T, N> as Iterator>::Item>
sourcefn advance_by(&mut self, n: usize) -> Result<(), usize>
fn advance_by(&mut self, n: usize) -> Result<(), usize>
iter_advance_by
#77404)n
elements. Read moresourcefn next_chunk<const N: usize>(
&mut self
) -> Result<[Self::Item; N], IntoIter<Self::Item, N>>
fn next_chunk<const N: usize>(
&mut self
) -> Result<[Self::Item; N], IntoIter<Self::Item, N>>
iter_next_chunk
#98326)N
values. Read more1.0.0 · sourcefn nth(&mut self, n: usize) -> Option<Self::Item>
fn nth(&mut self, n: usize) -> Option<Self::Item>
n
th element of the iterator. Read more1.28.0 · sourcefn step_by(self, step: usize) -> StepBy<Self>ⓘNotable traits for StepBy<I>impl<I> Iterator for StepBy<I>where
I: Iterator, type Item = <I as Iterator>::Item;
fn step_by(self, step: usize) -> StepBy<Self>ⓘNotable traits for StepBy<I>impl<I> Iterator for StepBy<I>where
I: Iterator, type Item = <I as Iterator>::Item;
I: Iterator, type Item = <I as Iterator>::Item;
1.0.0 · sourcefn chain<U>(self, other: U) -> Chain<Self, <U as IntoIterator>::IntoIter>ⓘNotable traits for Chain<A, B>impl<A, B> Iterator for Chain<A, B>where
A: Iterator,
B: Iterator<Item = <A as Iterator>::Item>, type Item = <A as Iterator>::Item;
where
U: IntoIterator<Item = Self::Item>,
fn chain<U>(self, other: U) -> Chain<Self, <U as IntoIterator>::IntoIter>ⓘNotable traits for Chain<A, B>impl<A, B> Iterator for Chain<A, B>where
A: Iterator,
B: Iterator<Item = <A as Iterator>::Item>, type Item = <A as Iterator>::Item;
where
U: IntoIterator<Item = Self::Item>,
A: Iterator,
B: Iterator<Item = <A as Iterator>::Item>, type Item = <A as Iterator>::Item;
1.0.0 · sourcefn zip<U>(self, other: U) -> Zip<Self, <U as IntoIterator>::IntoIter>ⓘNotable traits for Zip<A, B>impl<A, B> Iterator for Zip<A, B>where
A: Iterator,
B: Iterator, type Item = (<A as Iterator>::Item, <B as Iterator>::Item);
where
U: IntoIterator,
fn zip<U>(self, other: U) -> Zip<Self, <U as IntoIterator>::IntoIter>ⓘNotable traits for Zip<A, B>impl<A, B> Iterator for Zip<A, B>where
A: Iterator,
B: Iterator, type Item = (<A as Iterator>::Item, <B as Iterator>::Item);
where
U: IntoIterator,
A: Iterator,
B: Iterator, type Item = (<A as Iterator>::Item, <B as Iterator>::Item);
sourcefn intersperse_with<G>(self, separator: G) -> IntersperseWith<Self, G>ⓘNotable traits for IntersperseWith<I, G>impl<I, G> Iterator for IntersperseWith<I, G>where
I: Iterator,
G: FnMut() -> <I as Iterator>::Item, type Item = <I as Iterator>::Item;
where
G: FnMut() -> Self::Item,
fn intersperse_with<G>(self, separator: G) -> IntersperseWith<Self, G>ⓘNotable traits for IntersperseWith<I, G>impl<I, G> Iterator for IntersperseWith<I, G>where
I: Iterator,
G: FnMut() -> <I as Iterator>::Item, type Item = <I as Iterator>::Item;
where
G: FnMut() -> Self::Item,
I: Iterator,
G: FnMut() -> <I as Iterator>::Item, type Item = <I as Iterator>::Item;
iter_intersperse
#79524)separator
between adjacent items of the original iterator. Read more1.0.0 · sourcefn map<B, F>(self, f: F) -> Map<Self, F>ⓘNotable traits for Map<I, F>impl<B, I, F> Iterator for Map<I, F>where
I: Iterator,
F: FnMut(<I as Iterator>::Item) -> B, type Item = B;
where
F: FnMut(Self::Item) -> B,
fn map<B, F>(self, f: F) -> Map<Self, F>ⓘNotable traits for Map<I, F>impl<B, I, F> Iterator for Map<I, F>where
I: Iterator,
F: FnMut(<I as Iterator>::Item) -> B, type Item = B;
where
F: FnMut(Self::Item) -> B,
I: Iterator,
F: FnMut(<I as Iterator>::Item) -> B, type Item = B;
1.21.0 · sourcefn for_each<F>(self, f: F)where
F: FnMut(Self::Item),
fn for_each<F>(self, f: F)where
F: FnMut(Self::Item),
1.0.0 · sourcefn filter<P>(self, predicate: P) -> Filter<Self, P>ⓘNotable traits for Filter<I, P>impl<I, P> Iterator for Filter<I, P>where
I: Iterator,
P: FnMut(&<I as Iterator>::Item) -> bool, type Item = <I as Iterator>::Item;
where
P: FnMut(&Self::Item) -> bool,
fn filter<P>(self, predicate: P) -> Filter<Self, P>ⓘNotable traits for Filter<I, P>impl<I, P> Iterator for Filter<I, P>where
I: Iterator,
P: FnMut(&<I as Iterator>::Item) -> bool, type Item = <I as Iterator>::Item;
where
P: FnMut(&Self::Item) -> bool,
I: Iterator,
P: FnMut(&<I as Iterator>::Item) -> bool, type Item = <I as Iterator>::Item;
1.0.0 · sourcefn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>ⓘNotable traits for FilterMap<I, F>impl<B, I, F> Iterator for FilterMap<I, F>where
I: Iterator,
F: FnMut(<I as Iterator>::Item) -> Option<B>, type Item = B;
where
F: FnMut(Self::Item) -> Option<B>,
fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>ⓘNotable traits for FilterMap<I, F>impl<B, I, F> Iterator for FilterMap<I, F>where
I: Iterator,
F: FnMut(<I as Iterator>::Item) -> Option<B>, type Item = B;
where
F: FnMut(Self::Item) -> Option<B>,
I: Iterator,
F: FnMut(<I as Iterator>::Item) -> Option<B>, type Item = B;
1.0.0 · sourcefn enumerate(self) -> Enumerate<Self>ⓘNotable traits for Enumerate<I>impl<I> Iterator for Enumerate<I>where
I: Iterator, type Item = (usize, <I as Iterator>::Item);
fn enumerate(self) -> Enumerate<Self>ⓘNotable traits for Enumerate<I>impl<I> Iterator for Enumerate<I>where
I: Iterator, type Item = (usize, <I as Iterator>::Item);
I: Iterator, type Item = (usize, <I as Iterator>::Item);
1.0.0 · sourcefn peekable(self) -> Peekable<Self>ⓘNotable traits for Peekable<I>impl<I> Iterator for Peekable<I>where
I: Iterator, type Item = <I as Iterator>::Item;
fn peekable(self) -> Peekable<Self>ⓘNotable traits for Peekable<I>impl<I> Iterator for Peekable<I>where
I: Iterator, type Item = <I as Iterator>::Item;
I: Iterator, type Item = <I as Iterator>::Item;
1.0.0 · sourcefn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>ⓘNotable traits for SkipWhile<I, P>impl<I, P> Iterator for SkipWhile<I, P>where
I: Iterator,
P: FnMut(&<I as Iterator>::Item) -> bool, type Item = <I as Iterator>::Item;
where
P: FnMut(&Self::Item) -> bool,
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>ⓘNotable traits for SkipWhile<I, P>impl<I, P> Iterator for SkipWhile<I, P>where
I: Iterator,
P: FnMut(&<I as Iterator>::Item) -> bool, type Item = <I as Iterator>::Item;
where
P: FnMut(&Self::Item) -> bool,
I: Iterator,
P: FnMut(&<I as Iterator>::Item) -> bool, type Item = <I as Iterator>::Item;
1.0.0 · sourcefn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>ⓘNotable traits for TakeWhile<I, P>impl<I, P> Iterator for TakeWhile<I, P>where
I: Iterator,
P: FnMut(&<I as Iterator>::Item) -> bool, type Item = <I as Iterator>::Item;
where
P: FnMut(&Self::Item) -> bool,
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>ⓘNotable traits for TakeWhile<I, P>impl<I, P> Iterator for TakeWhile<I, P>where
I: Iterator,
P: FnMut(&<I as Iterator>::Item) -> bool, type Item = <I as Iterator>::Item;
where
P: FnMut(&Self::Item) -> bool,
I: Iterator,
P: FnMut(&<I as Iterator>::Item) -> bool, type Item = <I as Iterator>::Item;
1.57.0 · sourcefn map_while<B, P>(self, predicate: P) -> MapWhile<Self, P>ⓘNotable traits for MapWhile<I, P>impl<B, I, P> Iterator for MapWhile<I, P>where
I: Iterator,
P: FnMut(<I as Iterator>::Item) -> Option<B>, type Item = B;
where
P: FnMut(Self::Item) -> Option<B>,
fn map_while<B, P>(self, predicate: P) -> MapWhile<Self, P>ⓘNotable traits for MapWhile<I, P>impl<B, I, P> Iterator for MapWhile<I, P>where
I: Iterator,
P: FnMut(<I as Iterator>::Item) -> Option<B>, type Item = B;
where
P: FnMut(Self::Item) -> Option<B>,
I: Iterator,
P: FnMut(<I as Iterator>::Item) -> Option<B>, type Item = B;
1.0.0 · sourcefn skip(self, n: usize) -> Skip<Self>ⓘNotable traits for Skip<I>impl<I> Iterator for Skip<I>where
I: Iterator, type Item = <I as Iterator>::Item;
fn skip(self, n: usize) -> Skip<Self>ⓘNotable traits for Skip<I>impl<I> Iterator for Skip<I>where
I: Iterator, type Item = <I as Iterator>::Item;
I: Iterator, type Item = <I as Iterator>::Item;
n
elements. Read more1.0.0 · sourcefn take(self, n: usize) -> Take<Self>ⓘNotable traits for Take<I>impl<I> Iterator for Take<I>where
I: Iterator, type Item = <I as Iterator>::Item;
fn take(self, n: usize) -> Take<Self>ⓘNotable traits for Take<I>impl<I> Iterator for Take<I>where
I: Iterator, type Item = <I as Iterator>::Item;
I: Iterator, type Item = <I as Iterator>::Item;
n
elements, or fewer
if the underlying iterator ends sooner. Read more1.0.0 · sourcefn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>ⓘNotable traits for Scan<I, St, F>impl<B, I, St, F> Iterator for Scan<I, St, F>where
I: Iterator,
F: FnMut(&mut St, <I as Iterator>::Item) -> Option<B>, type Item = B;
where
F: FnMut(&mut St, Self::Item) -> Option<B>,
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>ⓘNotable traits for Scan<I, St, F>impl<B, I, St, F> Iterator for Scan<I, St, F>where
I: Iterator,
F: FnMut(&mut St, <I as Iterator>::Item) -> Option<B>, type Item = B;
where
F: FnMut(&mut St, Self::Item) -> Option<B>,
I: Iterator,
F: FnMut(&mut St, <I as Iterator>::Item) -> Option<B>, type Item = B;
1.0.0 · sourcefn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>ⓘNotable traits for FlatMap<I, U, F>impl<I, U, F> Iterator for FlatMap<I, U, F>where
I: Iterator,
U: IntoIterator,
F: FnMut(<I as Iterator>::Item) -> U, type Item = <U as IntoIterator>::Item;
where
U: IntoIterator,
F: FnMut(Self::Item) -> U,
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>ⓘNotable traits for FlatMap<I, U, F>impl<I, U, F> Iterator for FlatMap<I, U, F>where
I: Iterator,
U: IntoIterator,
F: FnMut(<I as Iterator>::Item) -> U, type Item = <U as IntoIterator>::Item;
where
U: IntoIterator,
F: FnMut(Self::Item) -> U,
I: Iterator,
U: IntoIterator,
F: FnMut(<I as Iterator>::Item) -> U, type Item = <U as IntoIterator>::Item;
1.0.0 · sourcefn fuse(self) -> Fuse<Self>ⓘNotable traits for Fuse<I>impl<I> Iterator for Fuse<I>where
I: Iterator, type Item = <I as Iterator>::Item;
fn fuse(self) -> Fuse<Self>ⓘNotable traits for Fuse<I>impl<I> Iterator for Fuse<I>where
I: Iterator, type Item = <I as Iterator>::Item;
I: Iterator, type Item = <I as Iterator>::Item;
1.0.0 · sourcefn inspect<F>(self, f: F) -> Inspect<Self, F>ⓘNotable traits for Inspect<I, F>impl<I, F> Iterator for Inspect<I, F>where
I: Iterator,
F: FnMut(&<I as Iterator>::Item), type Item = <I as Iterator>::Item;
where
F: FnMut(&Self::Item),
fn inspect<F>(self, f: F) -> Inspect<Self, F>ⓘNotable traits for Inspect<I, F>impl<I, F> Iterator for Inspect<I, F>where
I: Iterator,
F: FnMut(&<I as Iterator>::Item), type Item = <I as Iterator>::Item;
where
F: FnMut(&Self::Item),
I: Iterator,
F: FnMut(&<I as Iterator>::Item), type Item = <I as Iterator>::Item;
1.0.0 · sourcefn by_ref(&mut self) -> &mut Self
fn by_ref(&mut self) -> &mut Self
1.0.0 · sourcefn collect<B>(self) -> Bwhere
B: FromIterator<Self::Item>,
fn collect<B>(self) -> Bwhere
B: FromIterator<Self::Item>,
sourcefn collect_into<E>(self, collection: &mut E) -> &mut Ewhere
E: Extend<Self::Item>,
fn collect_into<E>(self, collection: &mut E) -> &mut Ewhere
E: Extend<Self::Item>,
iter_collect_into
#94780)1.0.0 · sourcefn partition<B, F>(self, f: F) -> (B, B)where
B: Default + Extend<Self::Item>,
F: FnMut(&Self::Item) -> bool,
fn partition<B, F>(self, f: F) -> (B, B)where
B: Default + Extend<Self::Item>,
F: FnMut(&Self::Item) -> bool,
sourcefn partition_in_place<'a, T, P>(self, predicate: P) -> usizewhere
T: 'a,
Self: DoubleEndedIterator<Item = &'a mut T>,
P: FnMut(&T) -> bool,
fn partition_in_place<'a, T, P>(self, predicate: P) -> usizewhere
T: 'a,
Self: DoubleEndedIterator<Item = &'a mut T>,
P: FnMut(&T) -> bool,
iter_partition_in_place
#62543)true
precede all those that return false
.
Returns the number of true
elements found. Read moresourcefn is_partitioned<P>(self, predicate: P) -> boolwhere
P: FnMut(Self::Item) -> bool,
fn is_partitioned<P>(self, predicate: P) -> boolwhere
P: FnMut(Self::Item) -> bool,
iter_is_partitioned
#62544)true
precede all those that return false
. Read more1.27.0 · sourcefn try_fold<B, F, R>(&mut self, init: B, f: F) -> Rwhere
F: FnMut(B, Self::Item) -> R,
R: Try<Output = B>,
fn try_fold<B, F, R>(&mut self, init: B, f: F) -> Rwhere
F: FnMut(B, Self::Item) -> R,
R: Try<Output = B>,
1.27.0 · sourcefn try_for_each<F, R>(&mut self, f: F) -> Rwhere
F: FnMut(Self::Item) -> R,
R: Try<Output = ()>,
fn try_for_each<F, R>(&mut self, f: F) -> Rwhere
F: FnMut(Self::Item) -> R,
R: Try<Output = ()>,
sourcefn reduce<F>(self, f: F) -> Option<Self::Item>where
F: FnMut(Self::Item, Self::Item) -> Self::Item,
fn reduce<F>(self, f: F) -> Option<Self::Item>where
F: FnMut(Self::Item, Self::Item) -> Self::Item,
sourcefn try_reduce<F, R>(
&mut self,
f: F
) -> <<R as Try>::Residual as Residual<Option<<R as Try>::Output>>>::TryTypewhere
F: FnMut(Self::Item, Self::Item) -> R,
R: Try<Output = Self::Item>,
<R as Try>::Residual: Residual<Option<Self::Item>>,
fn try_reduce<F, R>(
&mut self,
f: F
) -> <<R as Try>::Residual as Residual<Option<<R as Try>::Output>>>::TryTypewhere
F: FnMut(Self::Item, Self::Item) -> R,
R: Try<Output = Self::Item>,
<R as Try>::Residual: Residual<Option<Self::Item>>,
iterator_try_reduce
#87053)1.0.0 · sourcefn all<F>(&mut self, f: F) -> boolwhere
F: FnMut(Self::Item) -> bool,
fn all<F>(&mut self, f: F) -> boolwhere
F: FnMut(Self::Item) -> bool,
1.0.0 · sourcefn any<F>(&mut self, f: F) -> boolwhere
F: FnMut(Self::Item) -> bool,
fn any<F>(&mut self, f: F) -> boolwhere
F: FnMut(Self::Item) -> bool,
1.0.0 · sourcefn find<P>(&mut self, predicate: P) -> Option<Self::Item>where
P: FnMut(&Self::Item) -> bool,
fn find<P>(&mut self, predicate: P) -> Option<Self::Item>where
P: FnMut(&Self::Item) -> bool,
1.30.0 · sourcefn find_map<B, F>(&mut self, f: F) -> Option<B>where
F: FnMut(Self::Item) -> Option<B>,
fn find_map<B, F>(&mut self, f: F) -> Option<B>where
F: FnMut(Self::Item) -> Option<B>,
sourcefn try_find<F, R>(
&mut self,
f: F
) -> <<R as Try>::Residual as Residual<Option<Self::Item>>>::TryTypewhere
F: FnMut(&Self::Item) -> R,
R: Try<Output = bool>,
<R as Try>::Residual: Residual<Option<Self::Item>>,
fn try_find<F, R>(
&mut self,
f: F
) -> <<R as Try>::Residual as Residual<Option<Self::Item>>>::TryTypewhere
F: FnMut(&Self::Item) -> R,
R: Try<Output = bool>,
<R as Try>::Residual: Residual<Option<Self::Item>>,
try_find
#63178)1.0.0 · sourcefn position<P>(&mut self, predicate: P) -> Option<usize>where
P: FnMut(Self::Item) -> bool,
fn position<P>(&mut self, predicate: P) -> Option<usize>where
P: FnMut(Self::Item) -> bool,
1.0.0 · sourcefn rposition<P>(&mut self, predicate: P) -> Option<usize>where
P: FnMut(Self::Item) -> bool,
Self: ExactSizeIterator + DoubleEndedIterator,
fn rposition<P>(&mut self, predicate: P) -> Option<usize>where
P: FnMut(Self::Item) -> bool,
Self: ExactSizeIterator + DoubleEndedIterator,
1.6.0 · sourcefn max_by_key<B, F>(self, f: F) -> Option<Self::Item>where
B: Ord,
F: FnMut(&Self::Item) -> B,
fn max_by_key<B, F>(self, f: F) -> Option<Self::Item>where
B: Ord,
F: FnMut(&Self::Item) -> B,
1.15.0 · sourcefn max_by<F>(self, compare: F) -> Option<Self::Item>where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn max_by<F>(self, compare: F) -> Option<Self::Item>where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
1.6.0 · sourcefn min_by_key<B, F>(self, f: F) -> Option<Self::Item>where
B: Ord,
F: FnMut(&Self::Item) -> B,
fn min_by_key<B, F>(self, f: F) -> Option<Self::Item>where
B: Ord,
F: FnMut(&Self::Item) -> B,
1.15.0 · sourcefn min_by<F>(self, compare: F) -> Option<Self::Item>where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn min_by<F>(self, compare: F) -> Option<Self::Item>where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
1.0.0 · sourcefn rev(self) -> Rev<Self>ⓘNotable traits for Rev<I>impl<I> Iterator for Rev<I>where
I: DoubleEndedIterator, type Item = <I as Iterator>::Item;
where
Self: DoubleEndedIterator,
fn rev(self) -> Rev<Self>ⓘNotable traits for Rev<I>impl<I> Iterator for Rev<I>where
I: DoubleEndedIterator, type Item = <I as Iterator>::Item;
where
Self: DoubleEndedIterator,
I: DoubleEndedIterator, type Item = <I as Iterator>::Item;
1.0.0 · sourcefn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB)where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Iterator<Item = (A, B)>,
fn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB)where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Iterator<Item = (A, B)>,
1.36.0 · sourcefn copied<'a, T>(self) -> Copied<Self>ⓘNotable traits for Copied<I>impl<'a, I, T> Iterator for Copied<I>where
T: 'a + Copy,
I: Iterator<Item = &'a T>, type Item = T;
where
T: 'a + Copy,
Self: Iterator<Item = &'a T>,
fn copied<'a, T>(self) -> Copied<Self>ⓘNotable traits for Copied<I>impl<'a, I, T> Iterator for Copied<I>where
T: 'a + Copy,
I: Iterator<Item = &'a T>, type Item = T;
where
T: 'a + Copy,
Self: Iterator<Item = &'a T>,
T: 'a + Copy,
I: Iterator<Item = &'a T>, type Item = T;
1.0.0 · sourcefn cloned<'a, T>(self) -> Cloned<Self>ⓘNotable traits for Cloned<I>impl<'a, I, T> Iterator for Cloned<I>where
T: 'a + Clone,
I: Iterator<Item = &'a T>, type Item = T;
where
T: 'a + Clone,
Self: Iterator<Item = &'a T>,
fn cloned<'a, T>(self) -> Cloned<Self>ⓘNotable traits for Cloned<I>impl<'a, I, T> Iterator for Cloned<I>where
T: 'a + Clone,
I: Iterator<Item = &'a T>, type Item = T;
where
T: 'a + Clone,
Self: Iterator<Item = &'a T>,
T: 'a + Clone,
I: Iterator<Item = &'a T>, type Item = T;
sourcefn array_chunks<const N: usize>(self) -> ArrayChunks<Self, N>ⓘNotable traits for ArrayChunks<I, N>impl<I, const N: usize> Iterator for ArrayChunks<I, N>where
I: Iterator, type Item = [<I as Iterator>::Item; N];
fn array_chunks<const N: usize>(self) -> ArrayChunks<Self, N>ⓘNotable traits for ArrayChunks<I, N>impl<I, const N: usize> Iterator for ArrayChunks<I, N>where
I: Iterator, type Item = [<I as Iterator>::Item; N];
I: Iterator, type Item = [<I as Iterator>::Item; N];
iter_array_chunks
#100450)N
elements of the iterator at a time. Read more1.11.0 · sourcefn sum<S>(self) -> Swhere
S: Sum<Self::Item>,
fn sum<S>(self) -> Swhere
S: Sum<Self::Item>,
1.11.0 · sourcefn product<P>(self) -> Pwhere
P: Product<Self::Item>,
fn product<P>(self) -> Pwhere
P: Product<Self::Item>,
sourcefn cmp_by<I, F>(self, other: I, cmp: F) -> Orderingwhere
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Ordering,
fn cmp_by<I, F>(self, other: I, cmp: F) -> Orderingwhere
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Ordering,
iter_order_by
#64295)Iterator
with those
of another with respect to the specified comparison function. Read more1.5.0 · sourcefn partial_cmp<I>(self, other: I) -> Option<Ordering>where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
fn partial_cmp<I>(self, other: I) -> Option<Ordering>where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
sourcefn partial_cmp_by<I, F>(self, other: I, partial_cmp: F) -> Option<Ordering>where
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Option<Ordering>,
fn partial_cmp_by<I, F>(self, other: I, partial_cmp: F) -> Option<Ordering>where
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Option<Ordering>,
iter_order_by
#64295)Iterator
with those
of another with respect to the specified comparison function. Read more1.5.0 · sourcefn eq<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
fn eq<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
sourcefn eq_by<I, F>(self, other: I, eq: F) -> boolwhere
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> bool,
fn eq_by<I, F>(self, other: I, eq: F) -> boolwhere
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> bool,
iter_order_by
#64295)1.5.0 · sourcefn ne<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
fn ne<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
1.5.0 · sourcefn lt<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
fn lt<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Iterator
are lexicographically
less than those of another. Read more1.5.0 · sourcefn le<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
fn le<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Iterator
are lexicographically
less or equal to those of another. Read more1.5.0 · sourcefn gt<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
fn gt<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Iterator
are lexicographically
greater than those of another. Read more1.5.0 · sourcefn ge<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
fn ge<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Iterator
are lexicographically
greater than or equal to those of another. Read moresourcefn is_sorted_by<F>(self, compare: F) -> boolwhere
F: FnMut(&Self::Item, &Self::Item) -> Option<Ordering>,
fn is_sorted_by<F>(self, compare: F) -> boolwhere
F: FnMut(&Self::Item, &Self::Item) -> Option<Ordering>,
is_sorted
#53485)sourcefn is_sorted_by_key<F, K>(self, f: F) -> boolwhere
F: FnMut(Self::Item) -> K,
K: PartialOrd<K>,
fn is_sorted_by_key<F, K>(self, f: F) -> boolwhere
F: FnMut(Self::Item) -> K,
K: PartialOrd<K>,
is_sorted
#53485)