Enum SparsityRequest 

pub enum SparsityRequest<'a> {
    Structure {
        irow: &'a mut [i32],
        jcol: &'a mut [i32],
    },
    Values {
        values: &'a mut [f64],
    },
}

Mode discriminator for the structure / values calls of TNLP::eval_jac_g and TNLP::eval_h. Replaces upstream’s iRow != NULL heuristic.

Variants

Structure

First call: fill irow and jcol with the structure (the numbering style is whatever was returned in NlpInfo::index_style). The values array is absent.

Fields

irow: &'a mut [i32]

jcol: &'a mut [i32]

Values

Subsequent calls: fill values with the entries of the matrix at the current x (and, for the Hessian, lambda, obj_factor).

Fields

values: &'a mut [f64]

Trait Implementations

impl<'a> Debug for SparsityRequest<'a>

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

Formats the value using the given formatter.