# PetscSectionGetField
Get the subsection 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 subsection for the given field





## 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
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/is/section/interface/section.c.html#PetscSectionGetField">src/vec/is/section/interface/section.c</A>


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[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](/docs/manualpages/index.md)  
[Index of all manual pages](/docs/manualpages/singleindex.md)  
