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# PCFactorGetShiftType
Gets the type of shift, if any, done when a zero pivot is detected
## Synopsis
```
#include "petscpc.h"
PetscErrorCode PCFactorGetShiftType(PC pc, MatFactorShiftType *type)
```
Not Collective
## Input Parameter
- ***pc -*** the preconditioner context
## Output Parameter
- ***type -*** one of `MAT_SHIFT_NONE`, `MAT_SHIFT_NONZERO`, `MAT_SHIFT_POSITIVE_DEFINITE`, or `MAT_SHIFT_INBLOCKS`
## See Also
`PCLU`, `PCCHOLESKY`, `PCFactorSetShiftType()`, `MatFactorShiftType`, `PCFactorSetShiftAmount()`, `PCFactorGetShiftAmount()`
## Level
intermediate
## Location
src/ksp/pc/impls/factor/factor.c
## Implementations
PCFactorGetShiftType_Factor in src/ksp/pc/impls/factor/factimpl.c
---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ksp/pc/impls/factor/factor.c)
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