:orphan:
# PetscObjectStateSet
Sets the state of any `PetscObject`, regardless of the type. 
## Synopsis
```
#include "petscsys.h"    
PetscErrorCode PetscObjectStateSet(PetscObject obj, PetscObjectState state)
```
Logically Collective


## Input Parameters

- ***obj -*** any PETSc object, for example a `Vec`, `Mat` or `KSP`. This must be
cast with a (`PetscObject`), for example,
`PetscObjectStateSet`((`PetscObject`)mat,state);
- ***state -*** the object state





## Note
This function should be used with extreme caution. There is
essentially only one use for it: if the user calls `Mat`(`Vec`)GetRow(Array),
which increases the state, but does not alter the data, then this
routine can be used to reset the state.  Such a reset must be collective.


## See Also
 `PetscObjectStateGet()`, `PetscObjectStateIncrease()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/sys/objects/state.c.html#PetscObjectStateSet">src/sys/objects/state.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/sys/objects/state.c)


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