Struct PathSegment 

pub struct PathSegment {
    pub at: f64,
    pub var_row: usize,
    pub lower: bool,
    pub pinned: bool,
}

One breakpoint the path stopped at.

Fields

at: f64

Fraction of the perturbation applied when this segment ended, measured from the base point.

var_row: usize

Var-x row of the variable whose bound status changed, whatever the kind of change. A release is detected on the bound’s multiplier row, but it is recorded here by the variable it frees, so a caller never needs the multiplier layout to read the record.

lower: bool

true when the bound involved is the variable’s lower bound.

pinned: bool

true when the variable reached the bound and is held there from this fraction on, false when it left it: either a bound active at the base whose multiplier reached zero, or a hold this path added earlier whose multiplier crossed zero.

A weakly active bound can be recorded true at a fraction of essentially zero, and that does not contradict the variable having been on it at the base point: what the working set gained there is the HOLD. Undecided, the bound sat in the factorization as an order-one penalty that does not enforce it (gh#852).

Trait Implementations

impl Clone for PathSegment

fn clone(&self) -> PathSegment

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PathSegment

impl Debug for PathSegment

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

Formats the value using the given formatter.

impl PartialEq for PathSegment

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PathSegment