Struct ComparisonConstraint 

pub struct ComparisonConstraint<T: Atomic>(ThresholdConstraintOver<WeightedSum<T>>);

Constraint over the difference between atoms / comparing atoms

This struct represents a comparison guard, i.e., it represents a guard of the form cv_1 * v_1 + ... + cv_n * v_n <COMPOP> cp_1 * p_1 + ... + cp_n * p_m + c where cv_1, ..., cv_n, cp_1, ..., cp_m are rational factors, <COMPOP> is a comparison operator (i.e.,<, >, <=, >=, ==, !=), v_1, ..., v_n are atoms, p_1, ..., p_m are parameters, and c is a rational constant.

Additionally, at least one of the atom coefficients, i.e., cv_1, ..., cv_n, must be smaller than zero and at least one greater than zero. Otherwise the guard would be a SumAtomConstraint.

Tuple Fields

0: ThresholdConstraintOver<WeightedSum<T>>

Implementations

impl<T: Atomic> ComparisonConstraint<T>

pub fn try_new<I: IntoIterator<Item = (T, Fraction)> + Clone>( atoms: I, thr: ThresholdConstraint, ) -> Result<Self, ComparisonConstraintCreationError>

Create a ComparisonConstraint

A comparison constraint constrains a weighted sum over multiple variables where at least one has a negative and at least one has a positive coefficient. In any other case the guard would be a SingleAtomConstraint or a SumAtomConstraint. In this case a ComparisonConstraintCreationError is returned.

pub fn is_upper_guard(&self) -> bool

Check if the guard is an upper guard

pub fn is_lower_guard(&self) -> bool

Check if the guard is a lower guard

pub fn to_boolean_expr<S>(&self) -> BooleanExpression<S>

where T: IntoNoDivBooleanExpr<S>, IntegerExpression<S>: From<T>, S: Atomic,

Get the boolean expression representing the threshold

pub fn get_threshold(&self) -> &Threshold

Get the threshold of the constraint

pub fn get_threshold_constraint(&self) -> &ThresholdConstraint

Get the threshold constraint of the constraint

Trait Implementations

impl<T: Clone + Atomic> Clone for ComparisonConstraint<T>

fn clone(&self) -> ComparisonConstraint<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + Atomic> Debug for ComparisonConstraint<T>

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

Formats the value using the given formatter.

impl<T: Atomic> Display for ComparisonConstraint<T>

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

Formats the value using the given formatter.

impl<T: Hash + Atomic> Hash for ComparisonConstraint<T>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: Ord + Atomic> Ord for ComparisonConstraint<T>

fn cmp(&self, other: &ComparisonConstraint<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<T: PartialEq + Atomic> PartialEq for ComparisonConstraint<T>

fn eq(&self, other: &ComparisonConstraint<T>) -> 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<T: PartialOrd + Atomic> PartialOrd for ComparisonConstraint<T>

fn partial_cmp(&self, other: &ComparisonConstraint<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: Eq + Atomic> Eq for ComparisonConstraint<T>

impl<T: Atomic> StructuralPartialEq for ComparisonConstraint<T>