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bounds: Vec<(Real, Real)>,
sgext: Box<SubgradientExtender<P, E>>,
},
}
/// The subgradient extender is a callback used to update existing minorants
/// given their associated primal data.
pub type SubgradientExtender<P, E> = FnMut(&[usize], &P) -> Result<DVector, E> + Send;
/// This trait provides information available in the
/// [`FirstOrderProblem::update`] method.
pub trait UpdateState<P> {
/// Whether the last step was a descent step.
fn was_descent(&self) -> bool;
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bounds: Vec<(Real, Real)>,
sgext: Box<SubgradientExtender<P, E>>,
},
}
/// The subgradient extender is a callback used to update existing minorants
/// given their associated primal data.
pub type SubgradientExtender<P, E> = FnMut(usize, &P, &[usize]) -> Result<DVector, E> + Send;
/// This trait provides information available in the
/// [`FirstOrderProblem::update`] method.
pub trait UpdateState<P> {
/// Whether the last step was a descent step.
fn was_descent(&self) -> bool;
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