Struct Expression 

pub struct Expression {
    pub terms: Vec<Term>,
    pub constant: f64,
}

An expression that can be the left hand or right hand side of a constraint equation.

It is a linear combination of variables, i.e., a sum of variables weighted by coefficients, plus an optional constant.

expression = term_1 + term_2 + ... + term_n + constant

Fields

terms: Vec<Term>

The terms in the expression.

constant: f64

The constant in the expression.

Implementations

impl Expression

pub const fn new(terms: Vec<Term>, constant: f64) -> Expression

Create a new Expression.

expression = term_1 + term_2 + ... + term_n + constant

pub const fn from_constant(constant: f64) -> Expression

Constructs an expression that represents a constant without any terms

expression = constant

pub fn from_term(term: Term) -> Expression

Constructs an expression from a single term.

expression = term

pub const fn from_terms(terms: Vec<Term>) -> Expression

Constructs an expression from a terms

expression = term_1 + term_2 + ... + term_n

pub fn from_variable(variable: Variable) -> Expression

Constructs an expression from a variable

expression = variable

Trait Implementations

impl Add<Expression> for Term

type Output = Expression

The resulting type after applying the + operator.

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

Performs the + operation.

impl Add<Expression> for Variable

type Output = Expression

The resulting type after applying the + operator.

fn add(self, expression: Expression) -> Expression

Performs the + operation.

impl Add<Expression> for f32

type Output = Expression

The resulting type after applying the + operator.

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

Performs the + operation.

impl Add<Expression> for f64

type Output = Expression

The resulting type after applying the + operator.

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

Performs the + operation.

impl Add<Term> for Expression

type Output = Expression

The resulting type after applying the + operator.

fn add(self, rhs: Term) -> Expression

Performs the + operation.

impl Add<Variable> for Expression

type Output = Expression

The resulting type after applying the + operator.

fn add(self, variable: Variable) -> Expression

Performs the + operation.

impl Add<f32> for Expression

type Output = Expression

The resulting type after applying the + operator.

fn add(self, rhs: f32) -> Expression

Performs the + operation.

impl Add<f64> for Expression

type Output = Expression

The resulting type after applying the + operator.

fn add(self, rhs: f64) -> Expression

Performs the + operation.

impl Add for Expression

type Output = Expression

The resulting type after applying the + operator.

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

Performs the + operation.

impl AddAssign<Term> for Expression

fn add_assign(&mut self, rhs: Term)

Performs the += operation.

impl AddAssign<Variable> for Expression

fn add_assign(&mut self, variable: Variable)

Performs the += operation.

impl AddAssign<f32> for Expression

fn add_assign(&mut self, rhs: f32)

Performs the += operation.

impl AddAssign<f64> for Expression

fn add_assign(&mut self, rhs: f64)

Performs the += operation.

impl AddAssign for Expression

fn add_assign(&mut self, rhs: Expression)

Performs the += operation.

impl BitOr<Expression> for PartialConstraint

type Output = Constraint

The resulting type after applying the | operator.

fn bitor(self, rhs: Expression) -> Constraint

Performs the | operation.

impl BitOr<WeightedRelation> for Expression

type Output = PartialConstraint

The resulting type after applying the | operator.

fn bitor(self, rhs: WeightedRelation) -> PartialConstraint

Performs the | operation.

impl Clone for Expression

fn clone(&self) -> Expression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Expression

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

Formats the value using the given formatter.

impl Div<f32> for Expression

type Output = Expression

The resulting type after applying the / operator.

fn div(self, rhs: f32) -> Expression

Performs the / operation.

impl Div<f64> for Expression

type Output = Expression

The resulting type after applying the / operator.

fn div(self, rhs: f64) -> Expression

Performs the / operation.

impl DivAssign<f32> for Expression

fn div_assign(&mut self, v: f32)

Performs the /= operation.

impl DivAssign<f64> for Expression

fn div_assign(&mut self, rhs: f64)

Performs the /= operation.

impl From<Term> for Expression

fn from(term: Term) -> Expression

Converts to this type from the input type.

impl From<Variable> for Expression

fn from(variable: Variable) -> Expression

Converts to this type from the input type.

impl From<f64> for Expression

fn from(constant: f64) -> Expression

Converts to this type from the input type.

impl FromIterator<Term> for Expression

fn from_iter<I: IntoIterator<Item = Term>>(iter: I) -> Self

Creates a value from an iterator.

impl Mul<Expression> for f32

type Output = Expression

The resulting type after applying the * operator.

fn mul(self, rhs: Expression) -> Expression

Performs the * operation.

impl Mul<Expression> for f64

type Output = Expression

The resulting type after applying the * operator.

fn mul(self, rhs: Expression) -> Expression

Performs the * operation.

impl Mul<f32> for Expression

type Output = Expression

The resulting type after applying the * operator.

fn mul(self, rhs: f32) -> Expression

Performs the * operation.

impl Mul<f64> for Expression

type Output = Expression

The resulting type after applying the * operator.

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

Performs the * operation.

impl MulAssign<f32> for Expression

fn mul_assign(&mut self, rhs: f32)

Performs the *= operation.

impl MulAssign<f64> for Expression

fn mul_assign(&mut self, rhs: f64)

Performs the *= operation.

impl Neg for Expression

type Output = Expression

The resulting type after applying the - operator.

fn neg(self) -> Expression

Performs the unary - operation.

impl PartialEq for Expression

fn eq(&self, other: &Expression) -> 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 Sub<Expression> for Term

type Output = Expression

The resulting type after applying the - operator.

fn sub(self, rhs: Expression) -> Expression

Performs the - operation.

impl Sub<Expression> for Variable

type Output = Expression

The resulting type after applying the - operator.

fn sub(self, expression: Expression) -> Expression

Performs the - operation.

impl Sub<Expression> for f32

type Output = Expression

The resulting type after applying the - operator.

fn sub(self, rhs: Expression) -> Expression

Performs the - operation.

impl Sub<Expression> for f64

type Output = Expression

The resulting type after applying the - operator.

fn sub(self, rhs: Expression) -> Expression

Performs the - operation.

impl Sub<Term> for Expression

type Output = Expression

The resulting type after applying the - operator.

fn sub(self, rhs: Term) -> Expression

Performs the - operation.

impl Sub<Variable> for Expression

type Output = Expression

The resulting type after applying the - operator.

fn sub(self, variable: Variable) -> Expression

Performs the - operation.

impl Sub<f32> for Expression

type Output = Expression

The resulting type after applying the - operator.

fn sub(self, rhs: f32) -> Expression

Performs the - operation.

impl Sub<f64> for Expression

type Output = Expression

The resulting type after applying the - operator.

fn sub(self, rhs: f64) -> Expression

Performs the - operation.

impl Sub for Expression

type Output = Expression

The resulting type after applying the - operator.

fn sub(self, rhs: Expression) -> Expression

Performs the - operation.

impl SubAssign<Term> for Expression

fn sub_assign(&mut self, rhs: Term)

Performs the -= operation.

impl SubAssign<Variable> for Expression

fn sub_assign(&mut self, variable: Variable)

Performs the -= operation.

impl SubAssign<f32> for Expression

fn sub_assign(&mut self, rhs: f32)

Performs the -= operation.

impl SubAssign<f64> for Expression

fn sub_assign(&mut self, rhs: f64)

Performs the -= operation.

impl SubAssign for Expression

fn sub_assign(&mut self, rhs: Expression)

Performs the -= operation.

impl StructuralPartialEq for Expression