pub struct Range<Idx> {
pub start: Idx,
pub end: Idx,
}
🔬This is a nightly-only experimental API. (
new_range_api
#125687)Expand description
A (half-open) range bounded inclusively below and exclusively above
(start..end
in a future edition).
The range start..end
contains all values with start <= x < end
.
It is empty if start >= end
.
§Examples
Fields§
§start: Idx
🔬This is a nightly-only experimental API. (
new_range_api
#125687)The lower bound of the range (inclusive).
end: Idx
🔬This is a nightly-only experimental API. (
new_range_api
#125687)The upper bound of the range (exclusive).
Implementations§
source§impl<Idx: Step> Range<Idx>
impl<Idx: Step> Range<Idx>
source§impl<Idx: PartialOrd<Idx>> Range<Idx>
impl<Idx: PartialOrd<Idx>> Range<Idx>
sourcepub fn contains<U>(&self, item: &U) -> bool
🔬This is a nightly-only experimental API. (new_range_api
#125687)
pub fn contains<U>(&self, item: &U) -> bool
new_range_api
#125687)Returns true
if item
is contained in the range.
§Examples
#![feature(new_range_api)]
use core::range::Range;
assert!(!Range::from(3..5).contains(&2));
assert!( Range::from(3..5).contains(&3));
assert!( Range::from(3..5).contains(&4));
assert!(!Range::from(3..5).contains(&5));
assert!(!Range::from(3..3).contains(&3));
assert!(!Range::from(3..2).contains(&3));
assert!( Range::from(0.0..1.0).contains(&0.5));
assert!(!Range::from(0.0..1.0).contains(&f32::NAN));
assert!(!Range::from(0.0..f32::NAN).contains(&0.5));
assert!(!Range::from(f32::NAN..1.0).contains(&0.5));
sourcepub fn is_empty(&self) -> bool
🔬This is a nightly-only experimental API. (new_range_api
#125687)
pub fn is_empty(&self) -> bool
new_range_api
#125687)Returns true
if the range contains no items.
§Examples
#![feature(new_range_api)]
use core::range::Range;
assert!(!Range::from(3..5).is_empty());
assert!( Range::from(3..3).is_empty());
assert!( Range::from(3..2).is_empty());
The range is empty if either side is incomparable:
Trait Implementations§
source§impl<A: Step> IntoIterator for Range<A>
impl<A: Step> IntoIterator for Range<A>
source§impl<T> RangeBounds<T> for Range<&T>
impl<T> RangeBounds<T> for Range<&T>
source§impl<T> RangeBounds<T> for Range<T>
impl<T> RangeBounds<T> for Range<T>
source§impl<T> SliceIndex<[T]> for Range<usize>
impl<T> SliceIndex<[T]> for Range<usize>
source§fn get(self, slice: &[T]) -> Option<&[T]>
fn get(self, slice: &[T]) -> Option<&[T]>
🔬This is a nightly-only experimental API. (
slice_index_methods
)Returns a shared reference to the output at this location, if in
bounds.
source§fn get_mut(self, slice: &mut [T]) -> Option<&mut [T]>
fn get_mut(self, slice: &mut [T]) -> Option<&mut [T]>
🔬This is a nightly-only experimental API. (
slice_index_methods
)Returns a mutable reference to the output at this location, if in
bounds.
source§unsafe fn get_unchecked(self, slice: *const [T]) -> *const [T]
unsafe fn get_unchecked(self, slice: *const [T]) -> *const [T]
🔬This is a nightly-only experimental API. (
slice_index_methods
)Returns a pointer to the output at this location, without
performing any bounds checking. Read more
source§unsafe fn get_unchecked_mut(self, slice: *mut [T]) -> *mut [T]
unsafe fn get_unchecked_mut(self, slice: *mut [T]) -> *mut [T]
🔬This is a nightly-only experimental API. (
slice_index_methods
)Returns a mutable pointer to the output at this location, without
performing any bounds checking. Read more
source§impl SliceIndex<str> for Range<usize>
impl SliceIndex<str> for Range<usize>
source§fn get(self, slice: &str) -> Option<&Self::Output>
fn get(self, slice: &str) -> Option<&Self::Output>
🔬This is a nightly-only experimental API. (
slice_index_methods
)Returns a shared reference to the output at this location, if in
bounds.
source§fn get_mut(self, slice: &mut str) -> Option<&mut Self::Output>
fn get_mut(self, slice: &mut str) -> Option<&mut Self::Output>
🔬This is a nightly-only experimental API. (
slice_index_methods
)Returns a mutable reference to the output at this location, if in
bounds.
source§unsafe fn get_unchecked(self, slice: *const str) -> *const Self::Output
unsafe fn get_unchecked(self, slice: *const str) -> *const Self::Output
🔬This is a nightly-only experimental API. (
slice_index_methods
)Returns a pointer to the output at this location, without
performing any bounds checking. Read more
source§unsafe fn get_unchecked_mut(self, slice: *mut str) -> *mut Self::Output
unsafe fn get_unchecked_mut(self, slice: *mut str) -> *mut Self::Output
🔬This is a nightly-only experimental API. (
slice_index_methods
)Returns a mutable pointer to the output at this location, without
performing any bounds checking. Read more
impl<Idx: Copy> Copy for Range<Idx>
impl<Idx: Eq> Eq for Range<Idx>
impl<Idx> StructuralPartialEq for Range<Idx>
Auto Trait Implementations§
impl<Idx> Freeze for Range<Idx>where
Idx: Freeze,
impl<Idx> RefUnwindSafe for Range<Idx>where
Idx: RefUnwindSafe,
impl<Idx> Send for Range<Idx>where
Idx: Send,
impl<Idx> Sync for Range<Idx>where
Idx: Sync,
impl<Idx> Unpin for Range<Idx>where
Idx: Unpin,
impl<Idx> UnwindSafe for Range<Idx>where
Idx: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more