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# PetscHMapIVGetWithDefault
Get the value for a key in the hash table but override the default value returned if the key was not found 
## Synopsis
```
#include <petsc/private/hashmapiv.h>
PetscErrorCode PetscHMapIVGetWithDefault(PetscHMapIV ht, PetscInt key, PetscScalar default_val, PetscScalar *val)
```

## Input Parameters

- ***ht          -*** The hash table
- ***key         -*** The key
- ***default_val -*** The default value to set `val` to if `key` was not found



## Output Parameter

- ***val -*** The value





## See Also
 `PetscHMapIVGet()`, `PetscHMapIVSet()`, `PetscHMapIVSetWithMode()`, `PetscHMapIVIterGet()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/include/petsc/private/generated_khash.h.html#PetscHMapIVGetWithDefault">include/petsc/private/generated_khash.h</A>


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