Struct Choice 

pub struct Choice(/* private fields */);

Constant time boolean

This implementation uses a u64 under the hood, but it’s never exposed and only used through abstraction that push toward more constant time operations.

Choice can be combined with simple And operation.

Choice can be converted back to a boolean operations, although once this is done, the operation will likely be non-constant.

Implementations

impl Choice

pub fn is_true(self) -> bool

Return true if the Choice represent true

pub fn is_false(self) -> bool

return true if the Choice represent false

pub fn negate(self) -> Self

Toggle the value represented by the Choice in constant time

true become false, false become true

Trait Implementations

impl BitAnd for Choice

type Output = Choice

The resulting type after applying the & operator.

fn bitand(self, b: Choice) -> Choice

Performs the & operation.

impl BitOr for Choice

type Output = Choice

The resulting type after applying the | operator.

fn bitor(self, b: Choice) -> Choice

Performs the | operation.

impl BitXor for Choice

type Output = Choice

The resulting type after applying the ^ operator.

fn bitxor(self, b: Choice) -> Choice

Performs the ^ operation.

impl Clone for Choice

fn clone(&self) -> Choice

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl From<Choice> for bool

fn from(c: Choice) -> bool

Converts to this type from the input type.

impl Copy for Choice