Struct TimeCheckpoint 

pub struct TimeCheckpoint { /* private fields */ }

Accepted smooth prefix and the controller state needed to continue it exactly.

The current profile is explicit Tsitouras45 with an I-controller: the next step and endpoint derivative are continuation-critical. Past native midpoint stencils and requested samples are retained, not reconstructed from outputs. A canonical Run must additionally bind its Model/Plan and committed resets. This is neither a completed solution nor a provider-independent restart.

Implementations

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impl TimeCheckpoint

Signature links:TimeCheckpoint

pub fn initial( problem: &TimeProblem<'_>, plan: &TimePlan, backend: TimeBackendIdentity, registration: Option<RootRegistrationId>, next_step: f64, derivative: Vec<f64>, ) -> Result<TimeCheckpoint, Diagnostic>

Signature links:initialTimeProblemTimePlanTimeBackendIdentityOptionRootRegistrationIdf64Vecf64ResultTimeCheckpointDiagnostic

Retain the initialized native method before its first trial.

next_step is the provider’s initialized step, which may differ from the requested guess. derivative is its retained endpoint derivative.

Errors

Rejects unsupported methods/policies or invalid controller data.

pub fn with_history( self, history: AcceptedTimeHistory, samples: Vec<f64>, next_step: f64, derivative: Vec<f64>, ) -> Result<TimeCheckpoint, Diagnostic>

Signature links:with_historyAcceptedTimeHistoryVecf64f64Vecf64ResultTimeCheckpointDiagnostic

Retain the complete smooth prefix at a later accepted native boundary.

Samples are exactly the requested times at or before that boundary, in time-major order. A root/reset boundary belongs to the canonical event owner and starts a new smooth segment after its reset is committed.

Errors

Rejects missing samples, discontinuities, a foreign origin, or invalid controller data. A completed horizon must be accepted as a solution.

pub fn validate_for( &self, problem: &TimeProblem<'_>, plan: &TimePlan, backend: TimeBackendIdentity, registration: Option<RootRegistrationId>, ) -> Result<(), Diagnostic>

Signature links:validate_forTimeProblemTimePlanTimeBackendIdentityOptionRootRegistrationIdResult()Diagnostic

Reject a changed numerical request or provider before constructing a solver.

Errors

Rejects changed controls, outputs, initial state, method, provider, or roots.

pub const fn plan(&self) -> &TimePlan

Signature links:planTimePlan

Exact integration and output policy of the original smooth segment.

pub const fn report(&self) -> TimeExecutionReport

Signature links:reportTimeExecutionReport

Exact provider and admitted numerical profile.

pub const fn registration(&self) -> Option<RootRegistrationId>

Signature links:registrationOptionRootRegistrationId

Root registration, absent for a root-free segment.

pub fn initial_state(&self) -> &[f64]

Signature links:initial_statef64

Original smooth-segment state, before all retained accepted steps.

pub fn time(&self) -> f64

Signature links:timef64

Last accepted model time, or the initialized segment origin.

pub fn state(&self) -> &[f64]

Signature links:statef64

Last accepted coordinates; cancelled trial coordinates never belong here.

pub const fn next_step(&self) -> f64

Signature links:next_stepf64

Next native step, including the retained controller decision.

pub fn derivative(&self) -> &[f64]

Signature links:derivativef64

Retained derivative at the accepted endpoint, used by the method’s next trial.

pub const fn history(&self) -> Option<&AcceptedTimeHistory>

Signature links:historyOptionAcceptedTimeHistory

Complete smooth accepted history, absent before the first accepted step.

pub fn samples(&self) -> &[f64]

Signature links:samplesf64

Already evaluated requested outputs in time-major order.

Trait Implementations

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impl Clone for TimeCheckpoint

Signature links:CloneTimeCheckpoint

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fn clone(&self) -> TimeCheckpoint

Signature links:cloneTimeCheckpoint

Returns a duplicate of the value.

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

Signature links:unstableSourceclone_from

Performs copy-assignment from source.

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impl Debug for TimeCheckpoint

Signature links:DebugTimeCheckpoint

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

Signature links:fmtFormatterResult()Error

Formats the value using the given formatter.

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impl PartialEq for TimeCheckpoint

Signature links:PartialEqTimeCheckpoint

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

Signature links:eqTimeCheckpointbool

Tests for self and other values to be equal, and is used by ==.

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

Signature links:unstableSourcene&Rhsbool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TimeCheckpoint