Struct BitSet 

pub struct BitSet(pub Vec<u64>);

A length-prefixed bit set.

The wire representation is a VarInt length prefix followed by that many 64-bit words, encoded in big-endian order. The ith bit is set when:

(data[i / 64] & (1 << (i % 64))) != 0

Examples

use mcproto_types::{TypeCodec, basic::BitSet};

let bits = BitSet(vec![0b0000_0101]);

let mut encoded = Vec::new();
bits.encode(&mut encoded)?;
assert_eq!(
    encoded,
    [0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05]
);

let mut input = encoded.as_slice();
assert_eq!(BitSet::decode(&mut input)?, bits);
assert!(input.is_empty());

assert!(bits.contains(0));
assert!(!bits.contains(1));
assert!(bits.contains(2));

Tuple Fields

0: Vec<u64>

The packed 64-bit words, in little-endian bit order.

Implementations

impl BitSet

pub fn contains(&self, index: usize) -> bool

Returns whether the bit at index is set.

Trait Implementations

impl Clone for BitSet

fn clone(&self) -> BitSet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BitSet

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

Formats the value using the given formatter.

impl Default for BitSet

fn default() -> BitSet

Returns the “default value” for a type.

impl Eq for BitSet

impl Hash for BitSet

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for BitSet

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for BitSet

impl TypeCodec for BitSet

fn encode(&self, writer: &mut impl Write) -> Result<(), CodecError>

Encodes this value to the writer.

fn decode(reader: &mut impl Read) -> Result<Self, CodecError>

Decodes this value from the reader.