Enum Pruning 

pub enum Pruning {
    None,
    ForwardChecking,
    Ac3,
    AcFc,
}

Pruning strategy for backtracking search.

Variants

None

No pruning — pure backtracking.

ForwardChecking

Forward checking: prune neighbors of the assigned variable.

Ac3

MAC: Maintaining Arc Consistency (AC-3 after each assignment).

AcFc

Hybrid: forward checking + singleton propagation.

Trait Implementations

impl Clone for Pruning

fn clone(&self) -> Pruning

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Pruning

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

Formats the value using the given formatter.

impl PartialEq for Pruning

fn eq(&self, other: &Pruning) -> 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 Copy for Pruning

impl Eq for Pruning

impl StructuralPartialEq for Pruning