Struct ThresholdConstraint 

pub struct ThresholdConstraint(ThresholdCompOp, Threshold);

Threshold in combination with a comparison operator

A ThresholdConstraint represents a Threshold in combination with a comparison operator. Thus it can be used to represent equations of the form <COMPOP> c_1 * p_1 + ... + c_n * p_n + c where <COMPOP> is one of the comparison operators ==, !=, <, >, <=, >= (represented by ComparisonOp).

Most importantly, this struct implements operations like scaling by a negative number faithfully. Thus it can be useful when transforming threshold guards.

Tuple Fields

0: ThresholdCompOp

1: Threshold

Implementations

impl ThresholdConstraint

pub fn new<S, T>( op: ThresholdCompOp, weighted_parameters: S, constant: T, ) -> Self

where S: Into<WeightedSum<Parameter>>, T: Into<Fraction>,

Create a new threshold constraint

pub fn new_from_thr(op: ThresholdCompOp, thr: Threshold) -> Self

Create a new threshold constraint

pub fn scale<T: Into<Fraction>>(&mut self, factor: T)

Scale the threshold constraint by a fraction

pub fn get_op(&self) -> ThresholdCompOp

Get the ComparisonOp used in the threshold

pub fn get_threshold(&self) -> &Threshold

Get the Threshold of the threshold constraint

Trait Implementations

impl Clone for ThresholdConstraint

fn clone(&self) -> ThresholdConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ThresholdConstraint

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

Formats the value using the given formatter.

impl Display for ThresholdConstraint

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

Formats the value using the given formatter.

impl Hash for ThresholdConstraint

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 Ord for ThresholdConstraint

fn cmp(&self, other: &ThresholdConstraint) -> 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 PartialEq for ThresholdConstraint

fn eq(&self, other: &ThresholdConstraint) -> 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 PartialOrd for ThresholdConstraint

fn partial_cmp(&self, other: &ThresholdConstraint) -> 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 Eq for ThresholdConstraint

impl StructuralPartialEq for ThresholdConstraint