xref: /petsc/src/sys/tests/ex35.c (revision 6a5217c03994f2d95bb2e6dbd8bed42381aeb015)
1 static char help[] = "Tests PetscSortReal(), PetscSortRealWithArrayInt(), PetscFindReal\n\n";
2 
3 #include <petscsys.h>
4 
5 int main(int argc,char **argv)
6 {
7   PetscInt       i,loc;
8   PetscReal      val;
9   PetscReal      x[] = {39, 9, 19, -39, 29, 309, 209, 390, 12, 11};
10   PetscReal      x2[] = {39, 9, 19, -39, 29, 309, 209, 390, 12, 11};
11   PetscReal      x3[] = {39, 9, 19, -39, 29, 309, 209, 390, 12, 11};
12   PetscInt       index2[] = {1, -1, 4, 12, 13, 14, 0, 7, 9, 11};
13   PetscInt       index3[] = {1, -1, 4, 12, 13, 14, 0, 7, 9, 11};
14 
15   PetscCall(PetscInitialize(&argc,&argv,(char*)0,help));
16   PetscCall(PetscPrintf(PETSC_COMM_SELF,"1st test\n"));
17   for (i=0; i<5; i++) PetscCall(PetscPrintf(PETSC_COMM_SELF," %g\n",(double)x[i]));
18   PetscCall(PetscPrintf(PETSC_COMM_SELF,"---------------\n"));
19   PetscCall(PetscSortReal(5,x));
20   for (i=0; i<5; i++) PetscCall(PetscPrintf(PETSC_COMM_SELF," %g\n",(double)x[i]));
21 
22   PetscCall(PetscPrintf(PETSC_COMM_SELF,"\n2nd test\n"));
23   for (i=0; i<10; i++) PetscCall(PetscPrintf(PETSC_COMM_SELF," %g\n",(double)x[i]));
24   PetscCall(PetscPrintf(PETSC_COMM_SELF,"---------------\n"));
25   PetscCall(PetscSortReal(10,x));
26   for (i=0; i<10; i++) PetscCall(PetscPrintf(PETSC_COMM_SELF," %g\n",(double)x[i]));
27 
28   PetscCall(PetscPrintf(PETSC_COMM_SELF,"\n3rd test\n"));
29   for (i=0; i<5; i++) PetscCall(PetscPrintf(PETSC_COMM_SELF," %2" PetscInt_FMT "     %g\n",index2[i], (double)x2[i]));
30   PetscCall(PetscPrintf(PETSC_COMM_SELF,"---------------\n"));
31   PetscCall(PetscSortRealWithArrayInt(5, x2, index2));
32   for (i=0; i<5; i++) PetscCall(PetscPrintf(PETSC_COMM_SELF," %2" PetscInt_FMT "     %g\n",index2[i], (double)x2[i]));
33 
34   PetscCall(PetscPrintf(PETSC_COMM_SELF,"\n4th test\n"));
35   for (i=0; i<10; i++) PetscCall(PetscPrintf(PETSC_COMM_SELF," %2" PetscInt_FMT "     %g\n",index3[i], (double)x3[i]));
36   PetscCall(PetscPrintf(PETSC_COMM_SELF,"---------------\n"));
37   PetscCall(PetscSortRealWithArrayInt(10, x3, index3));
38   for (i=0; i<10; i++) PetscCall(PetscPrintf(PETSC_COMM_SELF," %2" PetscInt_FMT "     %g\n",index3[i], (double)x3[i]));
39 
40   PetscCall(PetscPrintf(PETSC_COMM_SELF,"\n5th test\n"));
41   val  = 44;
42   PetscCall(PetscFindReal(val,10,x3,PETSC_SMALL,&loc));
43   PetscCall(PetscPrintf(PETSC_COMM_SELF," %g in array: loc %" PetscInt_FMT "\n",(double)val,loc));
44   val  = 309.2;
45   PetscCall(PetscFindReal(val,10,x3,PETSC_SMALL,&loc));
46   PetscCall(PetscPrintf(PETSC_COMM_SELF," %g in array: loc %" PetscInt_FMT "\n",(double)val,loc));
47   val  = 309.2;
48   PetscCall(PetscFindReal(val,10,x3,0.21,&loc));
49   PetscCall(PetscPrintf(PETSC_COMM_SELF," %g in array: loc %" PetscInt_FMT "\n",(double)val,loc));
50 
51   PetscCall(PetscFinalize());
52   return 0;
53 }
54 
55 /*TEST
56 
57    test:
58 
59 TEST*/
60