PETSc version 3.15.5
PetscSortIntWithPermutation
Computes the permutation of values that gives a sorted sequence. 
Synopsis
#include "petscsys.h"  
PetscErrorCode  PetscSortIntWithPermutation(PetscInt n,const PetscInt i[],PetscInt idx[])
Not Collective
Input Parameters
|  | n | - number of values to sort | 
|  | i | - values to sort | 
|  | idx | - permutation array.  Must be initialized to 0:n-1 on input. | 
Notes
On output i is unchanged and idx[i] is the position of the i-th smallest index in i.
See Also
 PetscSortInt(), PetscSortRealWithPermutation(), PetscSortIntWithArray()
Level
intermediate
Location
src/sys/utils/sortip.c
Index of all Sys routines
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Index of all manual pages