[][src]Struct bv::BitSlice

pub struct BitSlice<'a, Block> { /* fields omitted */ }

A slice of a bit-vector; akin to &'a [bool] but packed.

Examples

use bv::*;

let array = [0b00110101u16];
let mut slice = array.bit_slice(..8);
assert_eq!( slice[0], true );
assert_eq!( slice[1], false );

slice = slice.bit_slice(1..8);
assert_eq!( slice[0], false );
assert_eq!( slice[1], true );

Methods

impl<'a, Block: BlockType> BitSlice<'a, Block>[src]

pub fn from_slice(blocks: &'a [Block]) -> Self[src]

Creates a BitSlice from an array slice of blocks.

The size is always a multiple of Block::nbits(). If you want a different size, slice.

Examples

use bv::{BitSlice, BitSliceable};

let v = vec![0b01010011u16, 0u16];
let slice = BitSlice::from_slice(&v).bit_slice(..7);
assert_eq!( slice.len(), 7 );
assert_eq!( slice[0], true );
assert_eq!( slice[1], true );
assert_eq!( slice[2], false );

pub unsafe fn from_raw_parts(bits: *const Block, offset: u64, len: u64) -> Self[src]

Creates a BitSlice from a pointer to its data, an offset where the bits start, and the number of available bits.

This is unsafe because the size of the passed-in buffer is not checked. It must hold at least offset + len bits or the resulting behavior is undefined.

Precondition

  • the first Block::ceil_div_nbits(len + offset) words of bits safe to read.

pub fn len(&self) -> u64[src]

The number of bits in the slice.

Examples

use bv::*;

let bv: BitVec = bit_vec![ true, true, false, true ];
let slice = bv.bit_slice(..3);

assert_eq!( bv.len(), 4 );
assert_eq!( slice.len(), 3 );

pub fn is_empty(&self) -> bool[src]

Returns whether there are no bits in the slice.

Examples

use bv::*;

let bv: BitVec = bit_vec![ true, true, false, true ];
let slice0 = bv.bit_slice(3..3);
let slice1 = bv.bit_slice(3..4);

assert!(  slice0.is_empty() );
assert!( !slice1.is_empty() );

Trait Implementations

impl<'a, Block: BlockType> Bits for BitSlice<'a, Block>[src]

type Block = Block

The underlying block type used to store the bits of the vector.

impl<'a, Block: BlockType> BitSliceable<Range<u64>> for BitSlice<'a, Block>[src]

type Slice = Self

The type of the slice produced.

impl<'a, Block: BlockType> BitSliceable<RangeInclusive<u64>> for BitSlice<'a, Block>[src]

type Slice = Self

The type of the slice produced.

impl<'a, Block: BlockType> BitSliceable<RangeFrom<u64>> for BitSlice<'a, Block>[src]

type Slice = Self

The type of the slice produced.

impl<'a, Block: BlockType> BitSliceable<RangeTo<u64>> for BitSlice<'a, Block>[src]

type Slice = Self

The type of the slice produced.

impl<'a, Block: BlockType> BitSliceable<RangeToInclusive<u64>> for BitSlice<'a, Block>[src]

type Slice = Self

The type of the slice produced.

impl<'a, Block: BlockType> BitSliceable<RangeFull> for BitSlice<'a, Block>[src]

type Slice = Self

The type of the slice produced.

impl<'a, 'b, Block: BlockType> From<&'b BitSliceMut<'a, Block>> for BitSlice<'a, Block>[src]

impl<'a, Block: BlockType> From<&'a [Block]> for BitSlice<'a, Block>[src]

impl<'a, Block: Clone> Clone for BitSlice<'a, Block>[src]

impl<'a, Block: Copy> Copy for BitSlice<'a, Block>[src]

impl<'a, Block: BlockType> Eq for BitSlice<'a, Block>[src]

impl<'a, Block: BlockType> Ord for BitSlice<'a, Block>[src]

impl<'a, Other: Bits> PartialEq<Other> for BitSlice<'a, Other::Block>[src]

impl<'a, Block: BlockType> PartialOrd<BitSlice<'a, Block>> for BitSlice<'a, Block>[src]

impl<'a, Block: BlockType> Debug for BitSlice<'a, Block>[src]

impl<'a, Block: BlockType> Index<u64> for BitSlice<'a, Block>[src]

type Output = bool

The returned type after indexing.

impl<'a, Block: BlockType + Hash> Hash for BitSlice<'a, Block>[src]

Auto Trait Implementations

impl<'a, Block> !Send for BitSlice<'a, Block>

impl<'a, Block> !Sync for BitSlice<'a, Block>

impl<'a, Block> Unpin for BitSlice<'a, Block>

impl<'a, Block> UnwindSafe for BitSlice<'a, Block> where
    Block: RefUnwindSafe

impl<'a, Block> RefUnwindSafe for BitSlice<'a, Block> where
    Block: RefUnwindSafe

Blanket Implementations

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> From<T> for T[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> Any for T where
    T: 'static + ?Sized
[src]