Struct ConstraintRowId 

pub struct ConstraintRowId(pub usize);

A row index in a ConstraintSet’s OWN constraint-row space — the space addressed by ConstraintSet::values, ConstraintSet::bound and ConstraintSet::row_norm, i.e. 0..nrows().

This is NOT a coefficient (β) index. The two spaces have different sizes (nrows() vs ncols()) and different meanings, and they coincide only in the special case of a square carrier whose row r is exactly the box β_r ≥ 0. A block-diagonal composition breaks that coincidence: its row ids are the CONCATENATION of the member row counts while its columns are the concatenation of the member column ranges, so as soon as one member has nrows() < ncols() (a monotone sub-basis alongside unconstrained intercept / covariate columns) row id r of a later block names a β coordinate owned by an EARLIER block. The newtype exists so that mistake cannot be made silently; to go from a row to the coefficients it acts on, call ConstraintSet::row_column_support.

Tuple Fields

0: usize

Implementations

impl ConstraintRowId

pub fn index(self) -> usize

The raw index, for addressing a values() / bound() / row_norm() result. Deliberately explicit: reach for this only when indexing something that really is in constraint-row space.

Trait Implementations

impl Clone for ConstraintRowId

fn clone(&self) -> ConstraintRowId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ConstraintRowId

impl Debug for ConstraintRowId

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

Formats the value using the given formatter.

impl Eq for ConstraintRowId

impl Hash for ConstraintRowId

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 ConstraintRowId

fn cmp(&self, other: &ConstraintRowId) -> 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 ConstraintRowId

fn eq(&self, other: &ConstraintRowId) -> bool

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for ConstraintRowId

fn partial_cmp(&self, other: &ConstraintRowId) -> 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 StructuralPartialEq for ConstraintRowId