Struct MaxGradientEvals 

pub struct MaxGradientEvals(pub u64);

Stop after state.gradient_evals() >= n gradient evaluations. Bound on S: GradientState so it can’t be paired with derivative-free solvers — a compile error rather than a silently no-op criterion.

Tuple Fields

0: u64

Trait Implementations

impl<S: GradientState> TerminationCriterion<S> for MaxGradientEvals

fn check(&mut self, state: &S) -> Option<TerminationReason>

Inspect the current state and return Some(reason) to halt the run, or None to continue. Called once per iteration before the solver’s next_iter.