Enum ExprNode 

pub enum ExprNode {
    Const(f64),
    Var(VarId),
    Param(ParamId),
    Add(SmallVec<[ExprId; 4]>),
    Mul(SmallVec<[ExprId; 4]>),
    Neg(ExprId),
    Pow(ExprId, ExprId),
    Div(ExprId, ExprId),
    Sin(ExprId),
    Cos(ExprId),
    Exp(ExprId),
    Log(ExprId),
    Abs(ExprId),
    Linear {
        coeffs: Vec<(VarId, f64)>,
        constant: f64,
    },
}

Here we use a linear fast-path: sum(coeff * var) + constant. Built by the operator overloads when all children are linear, so LP/MILP construction never walks an Add(Mul(Const, Var), ...) tree.

Variants

Const(f64)

Var(VarId)

Param(ParamId)

Add(SmallVec<[ExprId; 4]>)

Mul(SmallVec<[ExprId; 4]>)

Neg(ExprId)

Pow(ExprId, ExprId)

Div(ExprId, ExprId)

Sin(ExprId)

Cos(ExprId)

Exp(ExprId)

Log(ExprId)

Abs(ExprId)

Linear

Fields

coeffs: Vec<(VarId, f64)>

constant: f64

Trait Implementations

impl Clone for ExprNode

fn clone(&self) -> ExprNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExprNode

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

Formats the value using the given formatter.