:orphan: # PetscSectionGetField Get the `PetscSection` associated with a single field ## Synopsis ``` #include "petscsection.h" PetscErrorCode PetscSectionGetField(PetscSection s, PetscInt field, PetscSection *subs) ``` ## Input Parameters - ***s -*** The `PetscSection` - ***field -*** The field number ## Output Parameter - ***subs -*** The `PetscSection` for the given field, note the chart of `subs` is not set ## Note Does not increase the reference count of the selected sub-section. There is no matching `PetscSectionRestoreField()` ## See Also [PetscSection](sec_petscsection), `PetscSection`, `IS`, `PetscSectionSetNumFields()` ## Level intermediate ## Location src/vec/is/section/interface/section.c --- [Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/vec/is/section/interface/section.c) [Index of all PetscSection routines](index.md) [Table of Contents for all manual pages](/manualpages/index.md) [Index of all manual pages](/manualpages/singleindex.md)