Struct coco_rs::Problem

pub struct Problem { /* fields omitted */ }

A specific problem instance.

Instances can be optained using Suite::next_problem.

Implementations

impl Problem

pub fn id(&self) -> &str

pub fn evaluate_function(&mut self, x: &[f64], y: &mut [f64])

Evaluates the problem at x and returns the result in y.

The length of x must match Problem::dimension and the length of y must match Problem::number_of_objectives.

pub fn evaluate_constraint(&mut self, x: &[f64], y: &mut [f64])

Evaluates the problem constraints in point x and save the result in y.

The length of x must match Problem::dimension and the length of y must match Problem::number_of_constraints.

pub fn final_target_hit(&self) -> bool

Returns true if a previous evaluation hit the target value.

pub fn dimension(&self) -> usize

Returns the dimension of the problem.

pub fn number_of_objectives(&self) -> usize

Returns the number of objectives of the problem.

pub fn number_of_constraints(&self) -> usize

Returns the number of constraints of the problem.

pub fn number_of_integer_variables(&self) -> usize

Returns the numver of integer variables of the problem.

The first n variables will be integers then. Returns 0 if all variables are continuous.

pub fn get_ranges_of_interest(&self) -> Vec<RangeInclusive<f64>>

Returns the upper and lover bounds of the problem.

pub fn evaluations(&self) -> u64

Returns how often this instance has been evaluated.

pub fn evaluations_constraints(&self) -> u64

Returns how often this instances constrants have been evaluated.

pub fn initial_solution(&self, x: &mut [f64])

Writes a feasible initial solution into x.

If the problem does not provide a specific solution, it will be the center of the problem’s region of interest.

Trait Implementations

impl Drop for Problem

fn drop(&mut self)

Executes the destructor for this type.

impl Send for Problem