pub struct Range<Idx> {
pub start: Idx,
pub end: Idx,
}Expand description
A (half-open) range bounded inclusively below and exclusively above
(start..end).
The range start..end contains all values with start <= x < end.
It is empty if start >= end.
Examples
The start..end syntax is a Range:
assert_eq!((3..5), std::ops::Range { start: 3, end: 5 });
assert_eq!(3 + 4 + 5, (3..6).sum());let arr = [0, 1, 2, 3, 4];
assert_eq!(arr[ .. ], [0, 1, 2, 3, 4]);
assert_eq!(arr[ .. 3], [0, 1, 2 ]);
assert_eq!(arr[ ..=3], [0, 1, 2, 3 ]);
assert_eq!(arr[1.. ], [ 1, 2, 3, 4]);
assert_eq!(arr[1.. 3], [ 1, 2 ]); // This is a `Range`
assert_eq!(arr[1..=3], [ 1, 2, 3 ]);Fields§
§start: IdxThe lower bound of the range (inclusive).
end: IdxThe upper bound of the range (exclusive).
Implementations§
source§impl<Idx> Range<Idx>where
Idx: PartialOrd<Idx>,
impl<Idx> Range<Idx>where Idx: PartialOrd<Idx>,
1.35.0 · sourcepub fn contains<U>(&self, item: &U) -> boolwhere
Idx: PartialOrd<U>,
U: PartialOrd<Idx> + ?Sized,
pub fn contains<U>(&self, item: &U) -> boolwhere Idx: PartialOrd<U>, U: PartialOrd<Idx> + ?Sized,
Returns true if item is contained in the range.
Examples
assert!(!(3..5).contains(&2));
assert!( (3..5).contains(&3));
assert!( (3..5).contains(&4));
assert!(!(3..5).contains(&5));
assert!(!(3..3).contains(&3));
assert!(!(3..2).contains(&3));
assert!( (0.0..1.0).contains(&0.5));
assert!(!(0.0..1.0).contains(&f32::NAN));
assert!(!(0.0..f32::NAN).contains(&0.5));
assert!(!(f32::NAN..1.0).contains(&0.5));1.47.0 · sourcepub fn is_empty(&self) -> bool
pub fn is_empty(&self) -> bool
Returns true if the range contains no items.
Examples
assert!(!(3..5).is_empty());
assert!( (3..3).is_empty());
assert!( (3..2).is_empty());The range is empty if either side is incomparable:
assert!(!(3.0..5.0).is_empty());
assert!( (3.0..f32::NAN).is_empty());
assert!( (f32::NAN..5.0).is_empty());Trait Implementations§
source§impl<'a, T, O> BitSliceIndex<'a, T, O> for Range<usize>where
O: BitOrder,
T: BitStore,
impl<'a, T, O> BitSliceIndex<'a, T, O> for Range<usize>where O: BitOrder, T: BitStore,
source§fn get(
self,
bits: <Range<usize> as BitSliceIndex<'a, T, O>>::Immut
) -> Option<<Range<usize> as BitSliceIndex<'a, T, O>>::Immut>
fn get( self, bits: <Range<usize> as BitSliceIndex<'a, T, O>>::Immut ) -> Option<<Range<usize> as BitSliceIndex<'a, T, O>>::Immut>
source§fn get_mut(
self,
bits: <Range<usize> as BitSliceIndex<'a, T, O>>::Mut
) -> Option<<Range<usize> as BitSliceIndex<'a, T, O>>::Mut>
fn get_mut( self, bits: <Range<usize> as BitSliceIndex<'a, T, O>>::Mut ) -> Option<<Range<usize> as BitSliceIndex<'a, T, O>>::Mut>
source§unsafe fn get_unchecked(
self,
bits: <Range<usize> as BitSliceIndex<'a, T, O>>::Immut
) -> <Range<usize> as BitSliceIndex<'a, T, O>>::Immut ⓘ
unsafe fn get_unchecked( self, bits: <Range<usize> as BitSliceIndex<'a, T, O>>::Immut ) -> <Range<usize> as BitSliceIndex<'a, T, O>>::Immut ⓘ
source§unsafe fn get_unchecked_mut(
self,
bits: <Range<usize> as BitSliceIndex<'a, T, O>>::Mut
) -> <Range<usize> as BitSliceIndex<'a, T, O>>::Mut ⓘ
unsafe fn get_unchecked_mut( self, bits: <Range<usize> as BitSliceIndex<'a, T, O>>::Mut ) -> <Range<usize> as BitSliceIndex<'a, T, O>>::Mut ⓘ
source§impl<'de, T> BorrowDecode<'de> for Range<T>where
T: BorrowDecode<'de>,
impl<'de, T> BorrowDecode<'de> for Range<T>where T: BorrowDecode<'de>,
source§fn borrow_decode<D>(decoder: &mut D) -> Result<Range<T>, DecodeError>where
D: BorrowDecoder<'de>,
fn borrow_decode<D>(decoder: &mut D) -> Result<Range<T>, DecodeError>where D: BorrowDecoder<'de>,
source§impl<'de, Idx> Deserialize<'de> for Range<Idx>where
Idx: Deserialize<'de>,
impl<'de, Idx> Deserialize<'de> for Range<Idx>where Idx: Deserialize<'de>,
source§fn deserialize<D>(
deserializer: D
) -> Result<Range<Idx>, <D as Deserializer<'de>>::Error>where
D: Deserializer<'de>,
fn deserialize<D>( deserializer: D ) -> Result<Range<Idx>, <D as Deserializer<'de>>::Error>where D: Deserializer<'de>,
source§impl<A> DoubleEndedIterator for Range<A>where
A: Step,
impl<A> DoubleEndedIterator for Range<A>where A: Step,
source§fn next_back(&mut self) -> Option<A>
fn next_back(&mut self) -> Option<A>
source§fn nth_back(&mut self, n: usize) -> Option<A>
fn nth_back(&mut self, n: usize) -> Option<A>
nth element from the end of the iterator. Read moresource§fn advance_back_by(&mut self, n: usize) -> Result<(), NonZeroUsize>
fn advance_back_by(&mut self, n: usize) -> Result<(), NonZeroUsize>
iter_advance_by)n elements. Read more1.27.0 · source§fn try_rfold<B, F, R>(&mut self, init: B, f: F) -> Rwhere
Self: Sized,
F: FnMut(B, Self::Item) -> R,
R: Try<Output = B>,
fn try_rfold<B, F, R>(&mut self, init: B, f: F) -> Rwhere Self: Sized, F: FnMut(B, Self::Item) -> R, R: Try<Output = B>,
Iterator::try_fold(): it takes
elements starting from the back of the iterator. Read moresource§impl ExactSizeIterator for Range<i16>
impl ExactSizeIterator for Range<i16>
source§impl ExactSizeIterator for Range<i32>
impl ExactSizeIterator for Range<i32>
source§impl ExactSizeIterator for Range<i8>
impl ExactSizeIterator for Range<i8>
source§impl ExactSizeIterator for Range<isize>
impl ExactSizeIterator for Range<isize>
source§impl ExactSizeIterator for Range<u16>
impl ExactSizeIterator for Range<u16>
source§impl ExactSizeIterator for Range<u32>
impl ExactSizeIterator for Range<u32>
source§impl ExactSizeIterator for Range<u8>
impl ExactSizeIterator for Range<u8>
source§impl ExactSizeIterator for Range<usize>
impl ExactSizeIterator for Range<usize>
source§impl<M, T, O> From<BitPtrRange<M, T, O>> for Range<BitPtr<M, T, O>>where
M: Mutability,
T: BitStore,
O: BitOrder,
impl<M, T, O> From<BitPtrRange<M, T, O>> for Range<BitPtr<M, T, O>>where M: Mutability, T: BitStore, O: BitOrder,
source§impl<M, T, O> From<Range<BitPtr<M, T, O>>> for BitPtrRange<M, T, O>where
M: Mutability,
T: BitStore,
O: BitOrder,
impl<M, T, O> From<Range<BitPtr<M, T, O>>> for BitPtrRange<M, T, O>where M: Mutability, T: BitStore, O: BitOrder,
source§impl<A> Iterator for Range<A>where
A: Step,
impl<A> Iterator for Range<A>where A: Step,
source§fn size_hint(&self) -> (usize, Option<usize>)
fn size_hint(&self) -> (usize, Option<usize>)
source§fn is_sorted(self) -> bool
fn is_sorted(self) -> bool
is_sorted)source§fn advance_by(&mut self, n: usize) -> Result<(), NonZeroUsize>
fn advance_by(&mut self, n: usize) -> Result<(), NonZeroUsize>
iter_advance_by)n elements. Read moresource§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 count(self) -> usizewhere
Self: Sized,
fn count(self) -> usizewhere Self: Sized,
1.28.0 · source§fn step_by(self, step: usize) -> StepBy<Self> ⓘwhere
Self: Sized,
fn step_by(self, step: usize) -> StepBy<Self> ⓘwhere Self: Sized,
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>,
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 moresource§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),
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,
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>,
source§fn enumerate(self) -> Enumerate<Self> ⓘwhere
Self: Sized,
fn enumerate(self) -> Enumerate<Self> ⓘwhere Self: Sized,
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,
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>,
source§fn skip(self, n: usize) -> Skip<Self> ⓘwhere
Self: Sized,
fn skip(self, n: usize) -> Skip<Self> ⓘwhere Self: Sized,
n elements. Read moresource§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 moresource§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>,
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,
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),
source§fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
fn by_ref(&mut self) -> &mut Selfwhere Self: Sized,
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)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 partition_in_place<'a, T, P>(self, predicate: P) -> usizewhere
T: 'a,
Self: Sized + DoubleEndedIterator<Item = &'a mut T>,
P: FnMut(&T) -> bool,
fn partition_in_place<'a, T, P>(self, predicate: P) -> usizewhere T: 'a, Self: Sized + DoubleEndedIterator<Item = &'a mut T>, P: FnMut(&T) -> bool,
iter_partition_in_place)true precede all those that return false.
Returns the number of true elements found. Read moresource§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 = ()>,
source§fn fold<B, F>(self, init: B, f: F) -> Bwhere
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)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,
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,
source§fn find<P>(&mut self, predicate: P) -> Option<Self::Item>where
Self: Sized,
P: FnMut(&Self::Item) -> bool,
fn find<P>(&mut self, predicate: P) -> Option<Self::Item>where Self: Sized, P: FnMut(&Self::Item) -> bool,
1.30.0 · source§fn find_map<B, F>(&mut self, f: F) -> Option<B>where
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)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,
source§fn rev(self) -> Rev<Self> ⓘwhere
Self: Sized + DoubleEndedIterator,
fn rev(self) -> Rev<Self> ⓘwhere Self: Sized + DoubleEndedIterator,
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>,
source§fn cloned<'a, T>(self) -> Cloned<Self> ⓘwhere
T: 'a + Clone,
Self: Sized + Iterator<Item = &'a T>,
fn cloned<'a, T>(self) -> Cloned<Self> ⓘwhere T: 'a + Clone, Self: Sized + Iterator<Item = &'a T>,
source§fn cycle(self) -> Cycle<Self> ⓘwhere
Self: Sized + Clone,
fn cycle(self) -> Cycle<Self> ⓘwhere Self: Sized + Clone,
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>,
fn product<P>(self) -> Pwhere Self: Sized, P: Product<Self::Item>,
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
Self: Sized,
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,
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impl SliceIndex<str> for Range<usize>
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Panics
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a character (as defined by is_char_boundary), if begin > end, or if
end > len.
Examples
let s = "Löwe 老虎 Léopard";
assert_eq!(&s[0 .. 1], "L");
assert_eq!(&s[1 .. 9], "öwe 老");
// these will panic:
// byte 2 lies within `ö`:
// &s[2 ..3];
// byte 8 lies within `老`
// &s[1 .. 8];
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