Struct Bitmap 

pub struct Bitmap {
    pub num_chunks: u16,
    pub map: [u8; 256],
}

Fields

num_chunks: u16

map: [u8; 256]

Implementations

impl Bitmap

pub fn new(number_of_chunks: u16) -> Self

pub fn test_and_set(&mut self, idx: u16) -> Result<(), ErrorCode>

Mark the bit corresponding to the given index and return whether it was already set, panicking if it is out of bounds

Panicking is the “correct” behavior since it will cause the Solana tx to revert

pub fn is_complete(&self) -> bool

Check if all bits are set to 1.

Trait Implementations

impl BorshDeserialize for Bitmap

where u16: BorshDeserialize, [u8; 256]: BorshDeserialize,

fn deserialize_reader<R: Read>(reader: &mut R) -> Result<Self, Error>

fn deserialize(buf: &mut &[u8]) -> Result<Self, Error>

Deserializes this instance from a given slice of bytes. Updates the buffer to point at the remaining bytes.

fn try_from_slice(v: &[u8]) -> Result<Self, Error>

Deserialize this instance from a slice of bytes.

fn try_from_reader<R>(reader: &mut R) -> Result<Self, Error>

where R: Read,

impl BorshSerialize for Bitmap

where u16: BorshSerialize, [u8; 256]: BorshSerialize,

fn serialize<W: Write>(&self, writer: &mut W) -> Result<(), Error>

fn try_to_vec(&self) -> Result<Vec<u8>, Error>

Serialize this instance into a vector of bytes.

impl Clone for Bitmap

fn clone(&self) -> Bitmap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Bitmap

impl Eq for Bitmap

impl Ord for Bitmap

fn cmp(&self, other: &Bitmap) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Bitmap

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for Bitmap

fn partial_cmp(&self, other: &Bitmap) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Space for Bitmap

const INIT_SPACE: usize

impl StructuralPartialEq for Bitmap