[−][src]Trait hibitset::BitSetLike

pub trait BitSetLike {
    fn layer3(&self) -> usize;

    fn layer2(&self, i: usize) -> usize;

    fn layer1(&self, i: usize) -> usize;

    fn layer0(&self, i: usize) -> usize;

    fn contains(&self, i: u32) -> bool;

    fn get_from_layer(&self, layer: usize, idx: usize) -> usize { ... }

    fn is_empty(&self) -> bool { ... }

    fn iter(self) -> BitIter<Self>ⓘ
Notable traits for BitIter<T>
impl<T> Iterator for BitIter<T> where
    T: BitSetLike,     type Item = u32;

    where
        Self: Sized,
    { ... }
}
[−]

A generic interface for BitSetLike-like types.

Every BitSetLike is hierarchical, meaning that there are multiple levels that branch out in a tree like structure.

Layer0 each bit represents one Index of the set Layer1 each bit represents one usize of Layer0, and will be set only if the word below it is not zero. Layer2 has the same arrangement but with Layer1, and Layer3 with Layer2.

This arrangement allows for rapid jumps across the key-space.

Required methods

fn layer3(&self) -> usize[−]

Return a usize where each bit represents if any word in layer2 has been set.

fn layer2(&self, i: usize) -> usize[−]

Return the usize from the array of usizes that indicates if any bit has been set in layer1

fn layer1(&self, i: usize) -> usize[−]

Return the usize from the array of usizes that indicates if any bit has been set in layer0

fn layer0(&self, i: usize) -> usize[−]

Return a usize that maps to the direct 1:1 association with each index of the set

fn contains(&self, i: u32) -> bool[−]

Allows checking if set bit is contained in the bit set.

Provided methods

fn get_from_layer(&self, layer: usize, idx: usize) -> usize[−]

Gets the usize corresponding to layer and index.

The layer should be in the range [0, 3]

fn is_empty(&self) -> bool[−]

Returns true if this BitSetLike contains nothing, and false otherwise.

fn iter(self) -> BitIter<Self>ⓘ

Notable traits for BitIter<T>

impl<T> Iterator for BitIter<T> where
    T: BitSetLike,  type Item = u32;
 where
    Self: Sized, [−]

Create an iterator that will scan over the keyspace

Implementations on Foreign Types

impl<'a, T: ?Sized> BitSetLike for &'a T where
    T: BitSetLike, [src][−]

impl<'a, T: ?Sized> BitSetLike for &'a mut T where
    T: BitSetLike, [src][−]

Implementors

impl BitSetLike for AtomicBitSet[src][+]

impl BitSetLike for BitSet[src][+]

impl BitSetLike for BitSetAll[src][+]

impl<A: BitSetLike> BitSetLike for BitSetNot<A>[src][+]

impl<A: BitSetLike, B: BitSetLike> BitSetLike for BitSetAnd<A, B>[src][+]

impl<A: BitSetLike, B: BitSetLike> BitSetLike for BitSetOr<A, B>[src][+]

impl<A: BitSetLike, B: BitSetLike> BitSetLike for BitSetXor<A, B>[src][+]