Struct LinearExpr

pub struct LinearExpr { /* private fields */ }

A sum of variables multiplied by constant coefficients used as a left-hand side when defining constraints.

Implementations

impl LinearExpr

pub fn empty() -> Self

Creates an empty linear expression.

pub fn add(&mut self, var: Variable, coeff: f64)

Add a single term to the linear expression.

Variables can be added to an expression in any order, but adding the same variable several times is forbidden (the Problem::add_constraint method will panic).

Trait Implementations

impl Clone for LinearExpr

fn clone(&self) -> LinearExpr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LinearExpr

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

Formats the value using the given formatter.

impl Extend<(Variable, f64)> for LinearExpr

fn extend<I: IntoIterator<Item = (Variable, f64)>>(&mut self, iter: I)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl<I: IntoIterator<Item = impl Into<LinearTerm>>> From<I> for LinearExpr

fn from(iter: I) -> Self

Converts to this type from the input type.

impl FromIterator<(Variable, f64)> for LinearExpr

fn from_iter<I: IntoIterator<Item = (Variable, f64)>>(iter: I) -> Self

Creates a value from an iterator.