:orphan:
# PCCompositeAddPC
Adds another `PC` to the composite `PC`.
## Synopsis
```
#include "petscksp.h"
PetscErrorCode PCCompositeAddPC(PC pc, PC subpc)
```
Collective
## Input Parameters
- ***pc -*** the preconditioner context
- ***subpc -*** the new preconditioner
## See Also
`PCCOMPOSITE`, `PCCompositeAddPCType()`, `PCCompositeGetNumberPC()`
## Level
intermediate
## Location
src/ksp/pc/impls/composite/composite.c
## Implementations
PCCompositeAddPC_Composite in src/ksp/pc/impls/composite/composite.c
---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ksp/pc/impls/composite/composite.c)
[Index of all PC routines](index.md)
[Table of Contents for all manual pages](/manualpages/index.md)
[Index of all manual pages](/manualpages/singleindex.md)