Trait BitArray

pub trait BitArray {
    // Required methods
    fn bit(&self, idx: usize) -> bool;
    fn bit_slice(&self, start: usize, end: usize) -> Self;
    fn mask(&self, n: usize) -> Self;
    fn trailing_zeros(&self) -> usize;
    fn zero() -> Self;
    fn one() -> Self;
}

A trait which allows numbers to act as fixed-size bit arrays

Required Methods

fn bit(&self, idx: usize) -> bool

Is bit set?

fn bit_slice(&self, start: usize, end: usize) -> Self

Returns an array which is just the bits from start to end

fn mask(&self, n: usize) -> Self

Bitwise and with n ones

fn trailing_zeros(&self) -> usize

Trailing zeros

fn zero() -> Self

Create all-zeros value

fn one() -> Self

Create value representing one

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl BitArray for Uint128

impl BitArray for Uint256