:orphan:
# DMLabelSetDefaultValue
Set the default value returned by `DMLabelGetValue()` if a point has not been explicitly given a value. When a label is created, it is initialized to -1.
## Synopsis
```
#include "petscdmlabel.h"
#include "petscsection.h"
PetscErrorCode DMLabelSetDefaultValue(DMLabel label, PetscInt defaultValue)
```
Not Collective
## Input parameter
- ***label -*** a `DMLabel` object
## Output parameter
- ***defaultValue -*** the default value
## See Also
`DMLabel`, `DM`, `DMLabelGetDefaultValue()`, `DMLabelGetValue()`, `DMLabelSetValue()`
## Level
beginner
## Location
src/dm/label/dmlabel.c
## Examples
src/dm/label/tutorials/ex1.c
---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/label/dmlabel.c)
[Index of all DMLabel routines](index.md)
[Table of Contents for all manual pages](/manualpages/index.md)
[Index of all manual pages](/manualpages/singleindex.md)