:orphan:
# ISContiguousLocal
Locates an index set with contiguous range within a global range, if possible 
## Synopsis
```
#include "petscis.h" 
PetscErrorCode ISContiguousLocal(IS is, PetscInt gstart, PetscInt gend, PetscInt *start, PetscBool *contig)
```
Not Collective


## Input Parameters

- ***is -*** the index set
- ***gstart -*** global start
- ***gend -*** global end



## Output Parameters

- ***start -*** start of contiguous block, as an offset from `gstart`
- ***contig -*** `PETSC_TRUE` if the index set refers to contiguous entries on this process, else `PETSC_FALSE`





## See Also
 `IS`, `ISGetLocalSize()`, `VecGetOwnershipRange()`

## Level
developer

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

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/is/is/impls/general/general.c.html#ISContiguousLocal_General">ISContiguousLocal_General in src/vec/is/is/impls/general/general.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/is/is/impls/stride/stride.c.html#ISContiguousLocal_Stride">ISContiguousLocal_Stride in src/vec/is/is/impls/stride/stride.c</A><BR>


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[Index of all IS routines](index.md)  
[Table of Contents for all manual pages](/manualpages/index.md)  
[Index of all manual pages](/manualpages/singleindex.md)