Struct Variable 

pub struct Variable { /* private fields */ }

Effectively an f64, but with an optional domain that the value must be on.

Implementations

impl Variable

pub fn new(value: f64, domain: Option<[f64; 2]>) -> Variable

Instantiates a new Variable struct with a specified value and domain.

pub fn change(&mut self, qty: f64)

Allows the ability to mutate self.value if the new value is on self.domain.

pub fn change_domain(&mut self, dmn: Option<[f64; 2]>)

Mutates the domain of a variable.

pub fn step(&mut self, qty: f64)

Allows the ability to mutate self.value by adding qty to it if the sum of self.value and qty is on self.domain.

pub fn as_f64(&self) -> f64

Returns self.value as f64.

Trait Implementations

impl Clone for Variable

fn clone(&self) -> Variable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Variable

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

Formats the value using the given formatter.

impl PartialEq for Variable

fn eq(&self, other: &Variable) -> 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 StructuralPartialEq for Variable