Struct FractionalPerm 

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

A fractional permission value in (0.0, 1.0].

Implementations

impl FractionalPerm

pub fn new(q: f64) -> Self

Create a fractional permission. Panics if out of range.

pub fn write() -> Self

The full write permission (1).

pub fn read_half() -> Self

A read-only half-permission.

pub fn split_half(&self) -> (Self, Self)

Split this permission into two halves.

pub fn combine(&self, other: &Self) -> Option<Self>

Combine with another permission (sum, capped at 1).

pub fn is_write(&self) -> bool

Check whether this is a write permission.

pub fn value(&self) -> f64

The value.

Trait Implementations

impl Clone for FractionalPerm

fn clone(&self) -> FractionalPerm

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FractionalPerm

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

Formats the value using the given formatter.

impl PartialEq for FractionalPerm

fn eq(&self, other: &FractionalPerm) -> 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 Copy for FractionalPerm

impl StructuralPartialEq for FractionalPerm