[−][src]Struct subset::Subset
A very simple subset of vector's items that is able to iterate forward and backward over selected items.
Examples
Basic usage:
use subset::*; let set = vec![9, 8, 7, 6, 5, 4, 3, 2, 1, 0]; let idxs = vec![2, 2]; assert_eq!(Subset::new(&set, &idxs).err(), Some(IndexError::NotUnique)); let idxs = vec![10]; assert_eq!(Subset::new(&set, &idxs).err(), Some(IndexError::OutOfBounds)); let idxs = vec![2, 4, 7]; // Indexes of selected items let subset = Subset::new(&set, &idxs).unwrap(); let mut iter = subset.iter(); assert_eq!(Some(&7), iter.next()); assert_eq!(Some(&2), iter.next_back()); assert_eq!(Some(&5), iter.next_back()); assert_eq!(None, iter.next()); assert_eq!(None, iter.next_back());
Methods
impl<'a, T> Subset<'a, T>
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pub fn new(set: &'a Vec<T>, idxs: &'a Vec<usize>) -> Result<Self, IndexError>
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Creates a subset from the whole set and indexes of the selected items. Both the uniqueness of the selected items and the array bounds is checked.
pub unsafe fn new_unchecked(set: &'a Vec<T>, idxs: &'a Vec<usize>) -> Self
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Creates a subset from the whole set and indexes of the selected items. Neither the uniqueness of the selected items, nor the array bounds is checked.
ⓘImportant traits for SubsetIterator<'a, T>pub fn iter(&'a self) -> SubsetIterator<'a, T>
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ⓘImportant traits for SubsetIterator<'a, T>
Returns an iterator over subset.
Auto Trait Implementations
Blanket Implementations
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,