Struct SoftScore 

pub struct SoftScore { /* private fields */ }

A simple score with a single integer value.

This is the simplest score type, useful when there’s only one type of constraint to optimize.

Examples

use solverforge_core::{SoftScore, Score};

let score1 = SoftScore::of(-5);
let score2 = SoftScore::of(-3);

assert!(score2 > score1);  // -3 is better than -5
assert!(!score1.is_feasible());  // Negative scores are not feasible

Implementations

impl SoftScore

pub const ZERO: SoftScore

The zero score.

pub const ONE: SoftScore

A score of 1 (useful for incrementing).

pub const fn of(score: i64) -> Self

Creates a new SoftScore with the given value.

pub const fn score(&self) -> i64

Returns the score value.

Trait Implementations

impl Add for SoftScore

type Output = SoftScore

The resulting type after applying the + operator.

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

Performs the + operation.

impl Clone for SoftScore

fn clone(&self) -> SoftScore

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SoftScore

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

Formats the value using the given formatter.

impl Default for SoftScore

fn default() -> SoftScore

Returns the “default value” for a type.

impl Display for SoftScore

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

Formats the value using the given formatter.

impl From<i64> for SoftScore

fn from(score: i64) -> Self

Converts to this type from the input type.

impl Hash for SoftScore

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 Neg for SoftScore

type Output = SoftScore

The resulting type after applying the - operator.

fn neg(self) -> Self

Performs the unary - operation.

impl Ord for SoftScore

fn cmp(&self, other: &Self) -> 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 ParseableScore for SoftScore

fn parse(s: &str) -> Result<Self, ScoreParseError>

Parses a score from a string representation.

fn to_string_repr(&self) -> String

Returns the string representation of this score.

impl PartialEq for SoftScore

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

fn partial_cmp(&self, other: &Self) -> 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 Score for SoftScore

fn is_feasible(&self) -> bool

Returns true if this score represents a feasible solution.

fn zero() -> Self

Returns the zero score (identity element for addition).

fn levels_count() -> usize

Returns the number of score levels.

fn to_level_numbers(&self) -> Vec<i64>

Returns the score values as a vector of i64.

fn from_level_numbers(levels: &[i64]) -> Self

Creates a score from level numbers.

fn multiply(&self, multiplicand: f64) -> Self

Multiplies this score by a scalar.

fn divide(&self, divisor: f64) -> Self

Divides this score by a scalar.

fn abs(&self) -> Self

Returns the absolute value of this score.

fn level_label(index: usize) -> ScoreLevel

Returns the semantic label for the score level at the given index.

fn to_scalar(&self) -> f64

Converts this score to a single f64 scalar value.

fn compare(&self, other: &Self) -> Ordering

Compares two scores, returning the ordering.

fn is_better_than(&self, other: &Self) -> bool

Returns true if this score is better than the other score.

fn is_worse_than(&self, other: &Self) -> bool

Returns true if this score is worse than the other score.

fn is_equal_to(&self, other: &Self) -> bool

Returns true if this score is equal to the other score.

impl Sub for SoftScore

type Output = SoftScore

The resulting type after applying the - operator.

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

Performs the - operation.

impl Copy for SoftScore

impl Eq for SoftScore

impl StructuralPartialEq for SoftScore