Struct Atc 

pub struct Atc {
    pub k: f64,
}

Apparent Tardiness Cost.

Combines WSPT with deadline urgency using an exponential function. The parameter k controls the balance:

• k > 2: more SPT-like (processing time dominates)
• k < 2: more EDD-like (deadline dominates)

Reference

Vepsalainen & Morton (1987), “Priority Rules for Job Shops with Weighted Tardiness Costs”

Fields

k: f64

Lookahead parameter (default: 2.0).

Implementations

impl Atc

pub fn with_k(k: f64) -> Self

Creates an ATC rule with custom k parameter.

Trait Implementations

impl Clone for Atc

fn clone(&self) -> Atc

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Atc

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

Formats the value using the given formatter.

impl Default for Atc

fn default() -> Self

Returns the “default value” for a type.

impl DispatchingRule for Atc

fn name(&self) -> &'static str

Rule name (e.g., “SPT”, “EDD”).

fn evaluate(&self, task: &Task, context: &SchedulingContext) -> RuleScore

Evaluates the priority of a task given the current scheduling context.

fn description(&self) -> &'static str

Rule description.

impl Copy for Atc