Struct VarId 

pub struct VarId(pub usize);

A unique identifier for a variable in a model.

This is used internally by the solver and the model to index variable values.

Tuple Fields

0: usize

Implementations

impl VarId

pub fn leq(self, rhs: f64) -> Constraint

Creates a <= constraint: self <= rhs.

pub fn geq(self, rhs: f64) -> Constraint

Creates a >= constraint: self >= rhs.

pub fn eq(self, rhs: f64) -> Constraint

Creates a == constraint: self == rhs.

Trait Implementations

impl Add<LinExpr> for VarId

VarId + LinExpr

type Output = LinExpr

The resulting type after applying the + operator.

fn add(self, rhs: LinExpr) -> LinExpr

Performs the + operation.

impl Add<VarId> for LinExpr

LinExpr + VarId

type Output = LinExpr

The resulting type after applying the + operator.

fn add(self, rhs: VarId) -> LinExpr

Performs the + operation.

impl Add for VarId

VarId + VarId

type Output = LinExpr

The resulting type after applying the + operator.

fn add(self, rhs: VarId) -> LinExpr

Performs the + operation.

impl AddAssign<VarId> for LinExpr

LinExpr += VarId

fn add_assign(&mut self, rhs: VarId)

Performs the += operation.

impl Clone for VarId

fn clone(&self) -> VarId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VarId

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

Formats the value using the given formatter.

impl From<VarId> for LinExpr

Allows converting a single variable into a linear expression with coefficient 1.0.

fn from(var: VarId) -> Self

Converts to this type from the input type.

impl Hash for VarId

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Mul<VarId> for f64

Allows multiplying a constant by a variable to create a linear expression.

Examples

let mut model = Model::new();
let x = model.add_var().finish();
let expr = 3.0 * x; // LinExpr representing 3*x

type Output = LinExpr

The resulting type after applying the * operator.

fn mul(self, rhs: VarId) -> LinExpr

Performs the * operation.

impl Mul<f64> for VarId

Allows multiplying a variable by a constant to create a linear expression.

Examples

let mut model = Model::new();
let x = model.add_var().finish();
let expr = x * 3.0; // LinExpr representing 3*x

type Output = LinExpr

The resulting type after applying the * operator.

fn mul(self, rhs: f64) -> LinExpr

Performs the * operation.

impl PartialEq for VarId

fn eq(&self, other: &VarId) -> 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 VarId

impl Eq for VarId

impl StructuralPartialEq for VarId