# TSSetPreStep

Sets the general-purpose function called once at the beginning of time stepping.

### Synopsis

    #include "petscts.h"
    PetscErrorCode PETSCTS_DLLEXPORT TSSetPreStep(TS ts, PetscErrorCode (*func)(TS))

Collective on TS

### Input Parameters

| ts | - The TS context obtained from TSCreate()
| func | - The function

### Calling sequence of func

func (TS ts); -

### Keywords

TS, timestep

Level:intermediate
Location:src/ts/interface/ts.c
Index of all TS routines
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Index of all manual pages