:orphan:
# TSSetPostStep
Sets the general-purpose function called once at the end of each time step.
## Synopsis
```
#include "petscts.h"
PetscErrorCode TSSetPostStep(TS ts, PetscErrorCode (*func)(TS))
```
Logically Collective
## Input Parameters
- ***ts -*** The `TS` context obtained from `TSCreate()`
- ***func -*** The function
## Calling sequence of `func`
```none
PetscErrorCode func(TS ts)
```
## Note
The function set by `TSSetPostStep()` is called after each successful step. The solution vector
obtained by `TSGetSolution()` may be different than that computed at the step end if the event handler
locates an event and `TSPostEvent()` modifies it. Use `TSSetPostEvaluate()` if an unmodified solution is needed instead.
## See Also
[](ch_ts), `TS`, `TSSetPreStep()`, `TSSetPreStage()`, `TSSetPostEvaluate()`, `TSGetTimeStep()`, `TSGetStepNumber()`, `TSGetTime()`, `TSRestartStep()`
## Level
intermediate
## Location
src/ts/interface/ts.c
## Examples
src/ts/tutorials/ex77.c
---
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