xref: /petsc/src/sys/tests/ex7.c (revision 98d129c30f3ee9fdddc40fdbc5a989b7be64f888)
1 static char help[] = "Tests PetscSortIntWithPermutation().\n\n";
2 
3 #include <petscsys.h>
4 
5 int main(int argc, char **argv)
6 {
7   PetscInt i;
8   PetscInt x[]  = {39, 9, 39, 39, 29}, index[5];
9   PetscInt x2[] = {39, 9, 19, 39, 29, 39, 29, 39}, index2[8];
10 
11   PetscFunctionBeginUser;
12   PetscCall(PetscInitialize(&argc, &argv, (char *)0, help));
13   PetscCall(PetscPrintf(PETSC_COMM_SELF, "1st test\n"));
14   for (i = 0; i < 5; i++) index[i] = i;
15   PetscCall(PetscSortIntWithPermutation(5, x, index));
16   for (i = 0; i < 5; i++) PetscCall(PetscPrintf(PETSC_COMM_SELF, " %" PetscInt_FMT "     %" PetscInt_FMT "     %" PetscInt_FMT "\n", x[i], index[i], x[index[i]]));
17 
18   PetscCall(PetscPrintf(PETSC_COMM_SELF, "\n2nd test\n"));
19   for (i = 0; i < 8; i++) index2[i] = i;
20   PetscCall(PetscSortIntWithPermutation(8, x2, index2));
21   for (i = 0; i < 8; i++) PetscCall(PetscPrintf(PETSC_COMM_SELF, " %" PetscInt_FMT "     %" PetscInt_FMT "     %" PetscInt_FMT "\n", x2[i], index2[i], x2[index2[i]]));
22   PetscCall(PetscFinalize());
23   return 0;
24 }
25 
26 /*TEST
27 
28    test:
29 
30 TEST*/
31