Struct bitrush_index::OZBCBitmap

pub struct OZBCBitmap { /* fields omitted */ }

Trait Implementations

impl<'_> BitAnd<&'_ OZBCBitmap> for &'_ OZBCBitmap

Impl BitAnd running "logical and" bit operation between 2 bitmaps.

type Output = OZBCBitmap

The resulting type after applying the & operator.

fn bitand(self, b2: Self) -> OZBCBitmap

Performs the & operation.

impl Bitmap for OZBCBitmap

Impl Bitmap to allow to use OZBCBitmap in [BitmapIndex].

fn new() -> OZBCBitmap

Return new empty bitmap.

fn set(&mut self, i: u32)

Set the ith bit (starting from zero). You must set the bitmap in increasing order otherwise nothing happend: set(0), set(16), set(1000) is the same of set(0), set(16), set(1000), set(50).

Example

use bitrush_index::OZBCBitmap;
use bitrush_index::Bitmap;

fn main() {        
    let mut b0 = OZBCBitmap::new();
    let mut b1 = b0.clone();
    let values = [0, 1, 100, 100000, 2,  100001];
    let values_ok = [0, 1, 100, 100000, 100001];
    for val in values.iter() {
        b0.set(*val);
    }
    for val in values_ok.iter() {
        b1.set(*val);
    }
    assert_eq!(b0, b1);
}

fn unroll_bitmap(&self) -> Vec<u32>

Return a vector with all positions of set bit.

fn size(&self) -> usize

Get bitmap content size.

fn write_to_buffer(&self, buffer_out: &mut [u8]) -> Result<usize, ()>

Write bitmap content into buffer_out and return the number of bytes written.

fn read_from_buffer(
    &mut self,
    buffer_in: &[u8],
    check_bitmap: bool
) -> Result<(), ()>

Read bitmap content from buffer_in, buffer_in must have the exact length of bitmap content.

impl Clone for OZBCBitmap

fn clone(&self) -> OZBCBitmap

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OZBCBitmap

Impl [Debug] trait printing each bit of every bitmap words.

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl PartialEq<OZBCBitmap> for OZBCBitmap

fn eq(&self, other: &OZBCBitmap) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &OZBCBitmap) -> bool

This method tests for !=.

impl StructuralPartialEq for OZBCBitmap