Enum ConstraintOperationError 

pub enum ConstraintOperationError {
    InfeasibleNogood,
    InfeasibleClause,
    InfeasibleState,
    InfeasiblePropagator,
}

Errors related to adding constraints to the [Solver].

Variants

InfeasibleNogood

InfeasibleClause

Error which indicate that adding a clause led to infeasibility at the root.

InfeasibleState

Error which indicates that a constraint was attempted to be added while the [Solver] was in an infeasible state.

InfeasiblePropagator

Error which indicate that adding a propagator led to infeasibility at the root.

Trait Implementations

impl Clone for ConstraintOperationError

fn clone(&self) -> ConstraintOperationError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintOperationError

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

Formats the value using the given formatter.

impl Display for ConstraintOperationError

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

Formats the value using the given formatter.

impl Error for ConstraintOperationError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl PartialEq for ConstraintOperationError

fn eq(&self, other: &ConstraintOperationError) -> 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 ConstraintOperationError

impl Eq for ConstraintOperationError

impl StructuralPartialEq for ConstraintOperationError