:orphan:
# PetscSectionGetNumFields
Returns the number of fields in a `PetscSection`, or 0 if no fields were defined. 
## Synopsis
```
#include "petscsection.h"   
PetscErrorCode PetscSectionGetNumFields(PetscSection s, PetscInt *numFields)
```
Not Collective


## Input Parameter

- ***s -*** the `PetscSection`



## Output Parameter

- ***numFields -*** the number of fields defined, or 0 if none were defined





## See Also
 [PetscSection](sec_petscsection), `PetscSection`, `PetscSectionSetNumFields()`

## Level
intermediate

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

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/tutorials/ex18.c.html">src/ts/tutorials/ex18.c</A><BR>


---
[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)