Struct multi_iter::MultiIterator
source · pub struct MultiIterator<'a, T> { /* private fields */ }
Expand description
An iterator that provides functions for acting on multiple elements at a time.
This struct
is created by the multi_iter
method on IntoMultiIterator
. See its
documentation for more.
Implementations§
source§impl<'a, T> MultiIterator<'a, T>
impl<'a, T> MultiIterator<'a, T>
sourcepub fn new(data: &'a [T]) -> Self
pub fn new(data: &'a [T]) -> Self
Constructs a new, empty MultiIterator<T>
.
Examples
Basic usage:
use multi_iter::MultiIterator;
let iter = MultiIterator::new(&[1, 2, 3]);
sourcepub fn peek_n(&self, n: usize) -> Option<&'a [T]>
pub fn peek_n(&self, n: usize) -> Option<&'a [T]>
Peeks the slice of the next n
elements after the cursor.
If there are less than n
elements, None
is returned instead.
Examples
Basic usage:
use multi_iter::IntoMultiIterator;
let a = [1, 2, 3];
let iter = a.multi_iter();
let items = iter.peek_n(2).unwrap();
assert_eq!(items.len(), 2);
assert_eq!(items[0], 1);
assert_eq!(items[1], 2);
assert_eq!(iter.len(), 3);
sourcepub fn peek_remaining(&self) -> Option<&'a [T]>
pub fn peek_remaining(&self) -> Option<&'a [T]>
Peeks the remaining slice of elements after the cursor.
If nothing is remaining, None
is returned instead.
Examples
Basic usage:
use multi_iter::IntoMultiIterator;
let a = [1, 2, 3];
let iter = a.multi_iter();
let items = iter.peek_remaining().unwrap();
assert_eq!(items.len(), 3);
assert_eq!(items[0], 1);
assert_eq!(items[1], 2);
assert_eq!(items[2], 3);
assert_eq!(iter.len(), 3);
sourcepub fn next_n(&mut self, n: usize) -> Option<&'a [T]>
pub fn next_n(&mut self, n: usize) -> Option<&'a [T]>
Returns a slice of the next n
elements after the cursor, which is then advanced by n
.
If there are less than n
elements, None
is returned.
Examples
Basic usage:
use multi_iter::IntoMultiIterator;
let a = [1, 2, 3];
let mut iter = a.multi_iter();
let items = iter.next_n(2).unwrap();
assert_eq!(items.len(), 2);
assert_eq!(items[0], 1);
assert_eq!(items[1], 2);
assert_eq!(iter.len(), 1);
sourcepub fn next_n_if_each(
&mut self,
n: usize,
func: impl Fn(&'a T) -> bool
) -> Option<&'a [T]>
pub fn next_n_if_each( &mut self, n: usize, func: impl Fn(&'a T) -> bool ) -> Option<&'a [T]>
Returns a slice of the next n
elements after the cursor if func
is true for each element
in the slice. The cursor is then advanced by n
.
If there are less than n
elements, or func
returns false, None
is returned instead.
Examples
Basic usage:
use multi_iter::IntoMultiIterator;
let a = [1, 2, 3];
let mut iter = a.multi_iter();
let items = iter.next_n_if_each(2, |x| *x >= 1).unwrap();
assert_eq!(items.len(), 2);
assert_eq!(items[0], 1);
assert_eq!(items[1], 2);
assert_eq!(iter.len(), 1);
sourcepub fn next_n_if_slice(
&mut self,
n: usize,
func: impl FnOnce(&'a [T]) -> bool
) -> Option<&'a [T]>
pub fn next_n_if_slice( &mut self, n: usize, func: impl FnOnce(&'a [T]) -> bool ) -> Option<&'a [T]>
Returns a slice of the next n
elements after the cursor if func
is true for the entire
slice. The cursor is then advanced by n
.
If there are less than n
elements, or func
returns false, None
is returned instead.
Examples
Basic usage:
use multi_iter::IntoMultiIterator;
let a = [1, 2, 3];
let mut iter = a.multi_iter();
let items = iter.next_n_if_slice(2, |x| x[0] == 1 && x[1] == 2).unwrap();
assert_eq!(items.len(), 2);
assert_eq!(iter.len(), 1);
sourcepub fn remaining(self) -> Option<&'a [T]>
pub fn remaining(self) -> Option<&'a [T]>
Returns a slice of the remaining elements. This is useful if you want something similar to
std::iter::Iterator::collect
without allocating.
If there is nothing remaining, None
is returned instead.
Examples
Basic usage:
use multi_iter::IntoMultiIterator;
let a = [1, 2, 3];
let iter = a.multi_iter();
let items = iter.remaining().unwrap();
assert_eq!(items.len(), 3);
assert_eq!(items[0], 1);
assert_eq!(items[1], 2);
assert_eq!(items[2], 3);
sourcepub fn remaining_if_each(self, func: impl Fn(&'a T) -> bool) -> Option<&'a [T]>
pub fn remaining_if_each(self, func: impl Fn(&'a T) -> bool) -> Option<&'a [T]>
Returns a slice of the remaining elements if func
is true for each element in the slice.
Otherwise, if nothing is remaining or func
returns false, None
is returned instead.
Examples
Basic usage:
use multi_iter::IntoMultiIterator;
let a = [1, 2, 3];
let iter = a.multi_iter();
let items = iter.remaining_if_each(|x| *x >= 1).unwrap();
assert_eq!(items.len(), 3);
assert_eq!(items[0], 1);
assert_eq!(items[1], 2);
assert_eq!(items[2], 3);
sourcepub fn remaining_if_slice(
self,
func: impl FnOnce(&'a [T]) -> bool
) -> Option<&'a [T]>
pub fn remaining_if_slice( self, func: impl FnOnce(&'a [T]) -> bool ) -> Option<&'a [T]>
Returns a slice of the remaining elements if func
is true for the entire slice.
Otherwise, if nothing is remaining or func
returns false, None
is returned intsead.
Examples
Basic usage:
use multi_iter::IntoMultiIterator;
let a = [1, 2, 3];
let iter = a.multi_iter();
let items = iter.remaining_if_slice(|x| {
x[0] == 1 && x[1] == 2 && x[2] == 3
}).unwrap();
assert_eq!(items.len(), 3);
assert_eq!(items[0], 1);
assert_eq!(items[1], 2);
assert_eq!(items[2], 3);
Trait Implementations§
source§impl<'a, T: Debug> Debug for MultiIterator<'a, T>
impl<'a, T: Debug> Debug for MultiIterator<'a, T>
source§impl<'a, T> ExactSizeIterator for MultiIterator<'a, T>
impl<'a, T> ExactSizeIterator for MultiIterator<'a, T>
source§impl<'a, T> Iterator for MultiIterator<'a, T>
impl<'a, T> Iterator for MultiIterator<'a, T>
source§fn next(&mut self) -> Option<&'a T>
fn next(&mut self) -> Option<&'a T>
source§fn count(self) -> usize
fn count(self) -> usize
source§fn size_hint(&self) -> (usize, Option<usize>)
fn size_hint(&self) -> (usize, Option<usize>)
source§fn next_chunk<const N: usize>(
&mut self
) -> Result<[Self::Item; N], IntoIter<Self::Item, N>>where
Self: Sized,
fn next_chunk<const N: usize>( &mut self ) -> Result<[Self::Item; N], IntoIter<Self::Item, N>>where Self: Sized,
iter_next_chunk
)N
values. Read moresource§fn advance_by(&mut self, n: usize) -> Result<(), usize>
fn advance_by(&mut self, n: usize) -> Result<(), usize>
iter_advance_by
)n
elements. Read more1.0.0 · source§fn 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 · source§fn step_by(self, step: usize) -> StepBy<Self>where
Self: Sized,
fn step_by(self, step: usize) -> StepBy<Self>where Self: Sized,
1.0.0 · source§fn chain<U>(self, other: U) -> Chain<Self, <U as IntoIterator>::IntoIter>where
Self: Sized,
U: IntoIterator<Item = Self::Item>,
fn chain<U>(self, other: U) -> Chain<Self, <U as IntoIterator>::IntoIter>where Self: Sized, U: IntoIterator<Item = Self::Item>,
1.0.0 · source§fn zip<U>(self, other: U) -> Zip<Self, <U as IntoIterator>::IntoIter>where
Self: Sized,
U: IntoIterator,
fn zip<U>(self, other: U) -> Zip<Self, <U as IntoIterator>::IntoIter>where Self: Sized, U: IntoIterator,
source§fn intersperse_with<G>(self, separator: G) -> IntersperseWith<Self, G>where
Self: Sized,
G: FnMut() -> Self::Item,
fn intersperse_with<G>(self, separator: G) -> IntersperseWith<Self, G>where Self: Sized, G: FnMut() -> Self::Item,
iter_intersperse
)separator
between adjacent items of the original iterator. Read more1.0.0 · source§fn map<B, F>(self, f: F) -> Map<Self, F>where
Self: Sized,
F: FnMut(Self::Item) -> B,
fn map<B, F>(self, f: F) -> Map<Self, F>where Self: Sized, F: FnMut(Self::Item) -> B,
1.21.0 · source§fn for_each<F>(self, f: F)where
Self: Sized,
F: FnMut(Self::Item),
fn for_each<F>(self, f: F)where Self: Sized, F: FnMut(Self::Item),
1.0.0 · source§fn filter<P>(self, predicate: P) -> Filter<Self, P>where
Self: Sized,
P: FnMut(&Self::Item) -> bool,
fn filter<P>(self, predicate: P) -> Filter<Self, P>where Self: Sized, P: FnMut(&Self::Item) -> bool,
1.0.0 · source§fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>where
Self: Sized,
F: FnMut(Self::Item) -> Option<B>,
fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>where Self: Sized, F: FnMut(Self::Item) -> Option<B>,
1.0.0 · source§fn enumerate(self) -> Enumerate<Self>where
Self: Sized,
fn enumerate(self) -> Enumerate<Self>where Self: Sized,
1.0.0 · source§fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>where
Self: Sized,
P: FnMut(&Self::Item) -> bool,
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>where Self: Sized, P: FnMut(&Self::Item) -> bool,
1.0.0 · source§fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>where
Self: Sized,
P: FnMut(&Self::Item) -> bool,
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>where Self: Sized, P: FnMut(&Self::Item) -> bool,
1.57.0 · source§fn map_while<B, P>(self, predicate: P) -> MapWhile<Self, P>where
Self: Sized,
P: FnMut(Self::Item) -> Option<B>,
fn map_while<B, P>(self, predicate: P) -> MapWhile<Self, P>where Self: Sized, P: FnMut(Self::Item) -> Option<B>,
1.0.0 · source§fn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
fn skip(self, n: usize) -> Skip<Self>where Self: Sized,
n
elements. Read more1.0.0 · source§fn take(self, n: usize) -> Take<Self>where
Self: Sized,
fn take(self, n: usize) -> Take<Self>where Self: Sized,
n
elements, or fewer
if the underlying iterator ends sooner. Read more1.0.0 · source§fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>where
Self: Sized,
F: FnMut(&mut St, Self::Item) -> Option<B>,
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>where Self: Sized, F: FnMut(&mut St, Self::Item) -> Option<B>,
1.0.0 · source§fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where
Self: Sized,
U: IntoIterator,
F: FnMut(Self::Item) -> U,
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where Self: Sized, U: IntoIterator, F: FnMut(Self::Item) -> U,
1.0.0 · source§fn inspect<F>(self, f: F) -> Inspect<Self, F>where
Self: Sized,
F: FnMut(&Self::Item),
fn inspect<F>(self, f: F) -> Inspect<Self, F>where Self: Sized, F: FnMut(&Self::Item),
1.0.0 · source§fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
fn by_ref(&mut self) -> &mut Selfwhere Self: Sized,
1.0.0 · source§fn collect<B>(self) -> Bwhere
B: FromIterator<Self::Item>,
Self: Sized,
fn collect<B>(self) -> Bwhere B: FromIterator<Self::Item>, Self: Sized,
source§fn collect_into<E>(self, collection: &mut E) -> &mut Ewhere
E: Extend<Self::Item>,
Self: Sized,
fn collect_into<E>(self, collection: &mut E) -> &mut Ewhere E: Extend<Self::Item>, Self: Sized,
iter_collect_into
)1.0.0 · source§fn partition<B, F>(self, f: F) -> (B, B)where
Self: Sized,
B: Default + Extend<Self::Item>,
F: FnMut(&Self::Item) -> bool,
fn partition<B, F>(self, f: F) -> (B, B)where Self: Sized, B: Default + Extend<Self::Item>, F: FnMut(&Self::Item) -> bool,
source§fn is_partitioned<P>(self, predicate: P) -> boolwhere
Self: Sized,
P: FnMut(Self::Item) -> bool,
fn is_partitioned<P>(self, predicate: P) -> boolwhere Self: Sized, P: FnMut(Self::Item) -> bool,
iter_is_partitioned
)true
precede all those that return false
. Read more1.27.0 · source§fn try_fold<B, F, R>(&mut self, init: B, f: F) -> Rwhere
Self: Sized,
F: FnMut(B, Self::Item) -> R,
R: Try<Output = B>,
fn try_fold<B, F, R>(&mut self, init: B, f: F) -> Rwhere Self: Sized, F: FnMut(B, Self::Item) -> R, R: Try<Output = B>,
1.27.0 · source§fn try_for_each<F, R>(&mut self, f: F) -> Rwhere
Self: Sized,
F: FnMut(Self::Item) -> R,
R: Try<Output = ()>,
fn try_for_each<F, R>(&mut self, f: F) -> Rwhere Self: Sized, F: FnMut(Self::Item) -> R, R: Try<Output = ()>,
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Self: Sized,
F: FnMut(B, Self::Item) -> B,
fn fold<B, F>(self, init: B, f: F) -> Bwhere Self: Sized, F: FnMut(B, Self::Item) -> B,
1.51.0 · source§fn reduce<F>(self, f: F) -> Option<Self::Item>where
Self: Sized,
F: FnMut(Self::Item, Self::Item) -> Self::Item,
fn reduce<F>(self, f: F) -> Option<Self::Item>where Self: Sized, F: FnMut(Self::Item, Self::Item) -> Self::Item,
source§fn try_reduce<F, R>(
&mut self,
f: F
) -> <<R as Try>::Residual as Residual<Option<<R as Try>::Output>>>::TryTypewhere
Self: Sized,
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 Self: Sized, F: FnMut(Self::Item, Self::Item) -> R, R: Try<Output = Self::Item>, <R as Try>::Residual: Residual<Option<Self::Item>>,
iterator_try_reduce
)1.0.0 · source§fn all<F>(&mut self, f: F) -> boolwhere
Self: Sized,
F: FnMut(Self::Item) -> bool,
fn all<F>(&mut self, f: F) -> boolwhere Self: Sized, F: FnMut(Self::Item) -> bool,
1.0.0 · source§fn any<F>(&mut self, f: F) -> boolwhere
Self: Sized,
F: FnMut(Self::Item) -> bool,
fn any<F>(&mut self, f: F) -> boolwhere Self: Sized, F: FnMut(Self::Item) -> bool,
1.0.0 · source§fn find<P>(&mut self, predicate: P) -> Option<Self::Item>where
Self: Sized,
P: FnMut(&Self::Item) -> bool,
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Self: Sized,
F: FnMut(Self::Item) -> Option<B>,
fn find_map<B, F>(&mut self, f: F) -> Option<B>where Self: Sized, F: FnMut(Self::Item) -> Option<B>,
source§fn try_find<F, R>(
&mut self,
f: F
) -> <<R as Try>::Residual as Residual<Option<Self::Item>>>::TryTypewhere
Self: Sized,
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 Self: Sized, F: FnMut(&Self::Item) -> R, R: Try<Output = bool>, <R as Try>::Residual: Residual<Option<Self::Item>>,
try_find
)1.0.0 · source§fn position<P>(&mut self, predicate: P) -> Option<usize>where
Self: Sized,
P: FnMut(Self::Item) -> bool,
fn position<P>(&mut self, predicate: P) -> Option<usize>where Self: Sized, P: FnMut(Self::Item) -> bool,
1.6.0 · source§fn max_by_key<B, F>(self, f: F) -> Option<Self::Item>where
B: Ord,
Self: Sized,
F: FnMut(&Self::Item) -> B,
fn max_by_key<B, F>(self, f: F) -> Option<Self::Item>where B: Ord, Self: Sized, F: FnMut(&Self::Item) -> B,
1.15.0 · source§fn max_by<F>(self, compare: F) -> Option<Self::Item>where
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn max_by<F>(self, compare: F) -> Option<Self::Item>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,
1.6.0 · source§fn min_by_key<B, F>(self, f: F) -> Option<Self::Item>where
B: Ord,
Self: Sized,
F: FnMut(&Self::Item) -> B,
fn min_by_key<B, F>(self, f: F) -> Option<Self::Item>where B: Ord, Self: Sized, F: FnMut(&Self::Item) -> B,
1.15.0 · source§fn min_by<F>(self, compare: F) -> Option<Self::Item>where
Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn min_by<F>(self, compare: F) -> Option<Self::Item>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Ordering,
1.0.0 · source§fn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB)where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Sized + Iterator<Item = (A, B)>,
fn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB)where FromA: Default + Extend<A>, FromB: Default + Extend<B>, Self: Sized + Iterator<Item = (A, B)>,
1.36.0 · source§fn copied<'a, T>(self) -> Copied<Self>where
T: 'a + Copy,
Self: Sized + Iterator<Item = &'a T>,
fn copied<'a, T>(self) -> Copied<Self>where T: 'a + Copy, Self: Sized + Iterator<Item = &'a T>,
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T: 'a + Clone,
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fn cloned<'a, T>(self) -> Cloned<Self>where T: 'a + Clone, Self: Sized + Iterator<Item = &'a T>,
source§fn array_chunks<const N: usize>(self) -> ArrayChunks<Self, N>where
Self: Sized,
fn array_chunks<const N: usize>(self) -> ArrayChunks<Self, N>where Self: Sized,
iter_array_chunks
)N
elements of the iterator at a time. Read more1.11.0 · source§fn sum<S>(self) -> Swhere
Self: Sized,
S: Sum<Self::Item>,
fn sum<S>(self) -> Swhere Self: Sized, S: Sum<Self::Item>,
1.11.0 · source§fn product<P>(self) -> Pwhere
Self: Sized,
P: Product<Self::Item>,
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source§fn cmp_by<I, F>(self, other: I, cmp: F) -> Orderingwhere
Self: Sized,
I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Ordering,
fn cmp_by<I, F>(self, other: I, cmp: F) -> Orderingwhere Self: Sized, I: IntoIterator, F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Ordering,
iter_order_by
)Iterator
with those
of another with respect to the specified comparison function. Read more1.5.0 · source§fn partial_cmp<I>(self, other: I) -> Option<Ordering>where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Self: Sized,
fn partial_cmp<I>(self, other: I) -> Option<Ordering>where I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,
PartialOrd
elements of
this Iterator
with those of another. The comparison works like short-circuit
evaluation, returning a result without comparing the remaining elements.
As soon as an order can be determined, the evaluation stops and a result is returned. Read moresource§fn partial_cmp_by<I, F>(self, other: I, partial_cmp: F) -> Option<Ordering>where
Self: Sized,
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 Self: Sized, I: IntoIterator, F: FnMut(Self::Item, <I as IntoIterator>::Item) -> Option<Ordering>,
iter_order_by
)Iterator
with those
of another with respect to the specified comparison function. Read more1.5.0 · source§fn eq<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
Self: Sized,
fn eq<I>(self, other: I) -> boolwhere I: IntoIterator, Self::Item: PartialEq<<I as IntoIterator>::Item>, Self: Sized,
source§fn eq_by<I, F>(self, other: I, eq: F) -> boolwhere
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I: IntoIterator,
F: FnMut(Self::Item, <I as IntoIterator>::Item) -> bool,
fn eq_by<I, F>(self, other: I, eq: F) -> boolwhere Self: Sized, I: IntoIterator, F: FnMut(Self::Item, <I as IntoIterator>::Item) -> bool,
iter_order_by
)1.5.0 · source§fn ne<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
Self: Sized,
fn ne<I>(self, other: I) -> boolwhere I: IntoIterator, Self::Item: PartialEq<<I as IntoIterator>::Item>, Self: Sized,
1.5.0 · source§fn lt<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Self: Sized,
fn lt<I>(self, other: I) -> boolwhere I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,
Iterator
are lexicographically
less than those of another. Read more1.5.0 · source§fn le<I>(self, other: I) -> boolwhere
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Self: Sized,
fn le<I>(self, other: I) -> boolwhere I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,
Iterator
are lexicographically
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I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Self: Sized,
fn gt<I>(self, other: I) -> boolwhere I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,
Iterator
are lexicographically
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I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Self: Sized,
fn ge<I>(self, other: I) -> boolwhere I: IntoIterator, Self::Item: PartialOrd<<I as IntoIterator>::Item>, Self: Sized,
Iterator
are lexicographically
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Self: Sized,
F: FnMut(&Self::Item, &Self::Item) -> Option<Ordering>,
fn is_sorted_by<F>(self, compare: F) -> boolwhere Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Option<Ordering>,
is_sorted
)source§fn is_sorted_by_key<F, K>(self, f: F) -> boolwhere
Self: Sized,
F: FnMut(Self::Item) -> K,
K: PartialOrd<K>,
fn is_sorted_by_key<F, K>(self, f: F) -> boolwhere Self: Sized, F: FnMut(Self::Item) -> K, K: PartialOrd<K>,
is_sorted
)