PetscSortIntWithPermutation#
Computes the permutation of PetscInt 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.
Note#
On output, i is unchanged and idx[j] is the position of the jth smallest PetscInt in i.
See Also#
PetscSortInt(), PetscSortRealWithPermutation(), PetscSortIntWithArray()
Level#
intermediate
Location#
Examples#
src/sys/tests/ex7.c
src/sys/tests/ex8.c
src/mat/tests/ex183.c
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