Struct arrow_buffer::buffer::BooleanBuffer

pub struct BooleanBuffer { /* private fields */ }

A slice-able Buffer containing bit-packed booleans

Implementations

impl BooleanBuffer

pub fn new(buffer: Buffer, offset: usize, len: usize) -> Self

Create a new BooleanBuffer from a Buffer, an offset and length in bits

Panics

This method will panic if buffer is not large enough

pub fn count_set_bits(&self) -> usize

Returns the number of set bits in this buffer

pub fn bit_chunks(&self) -> BitChunks<'_>

Returns a BitChunks instance which can be used to iterate over this buffer’s bits in u64 chunks

pub fn is_set(&self, i: usize) -> bool

Returns true if the bit at index i is set

Panics

Panics if i >= self.len()

pub fn offset(&self) -> usize

Returns the offset of this BooleanBuffer in bits

pub fn len(&self) -> usize

Returns the length of this BooleanBuffer in bits

pub fn is_empty(&self) -> bool

Returns true if this BooleanBuffer is empty

pub fn values(&self) -> &[u8]

Returns the packed values of this BooleanBuffer not including any offset

pub fn slice(&self, offset: usize, len: usize) -> Self

Slices this BooleanBuffer by the provided offset and length

pub fn sliced(&self) -> Buffer

Returns a Buffer containing the sliced contents of this BooleanBuffer

Equivalent to self.buffer.bit_slice(self.offset, self.len)

pub fn ptr_eq(&self, other: &Self) -> bool

Returns true if this BooleanBuffer is equal to other, using pointer comparisons to determine buffer equality. This is cheaper than PartialEq::eq but may return false when the arrays are logically equal

pub fn inner(&self) -> &Buffer

Returns the inner Buffer

pub fn into_inner(self) -> Buffer

Returns the inner Buffer, consuming self

Trait Implementations

impl Clone for BooleanBuffer

fn clone(&self) -> BooleanBuffer

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BooleanBuffer

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

Formats the value using the given formatter.

impl PartialEq<BooleanBuffer> for BooleanBuffer

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for BooleanBuffer

impl StructuralEq for BooleanBuffer