Actual source code: ex35.c
1: static char help[] = "Tests PetscSortReal(), PetscSortRealWithArrayInt(), PetscFindReal\n\n";
3: #include <petscsys.h>
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};
16: PetscInitialize(&argc, &argv, (char *)0, help);
17: PetscPrintf(PETSC_COMM_SELF, "1st test\n");
18: for (i = 0; i < 5; i++) PetscPrintf(PETSC_COMM_SELF, " %g\n", (double)x[i]);
19: PetscPrintf(PETSC_COMM_SELF, "---------------\n");
20: PetscSortReal(5, x);
21: for (i = 0; i < 5; i++) PetscPrintf(PETSC_COMM_SELF, " %g\n", (double)x[i]);
23: PetscPrintf(PETSC_COMM_SELF, "\n2nd test\n");
24: for (i = 0; i < 10; i++) PetscPrintf(PETSC_COMM_SELF, " %g\n", (double)x[i]);
25: PetscPrintf(PETSC_COMM_SELF, "---------------\n");
26: PetscSortReal(10, x);
27: for (i = 0; i < 10; i++) PetscPrintf(PETSC_COMM_SELF, " %g\n", (double)x[i]);
29: PetscPrintf(PETSC_COMM_SELF, "\n3rd test\n");
30: for (i = 0; i < 5; i++) PetscPrintf(PETSC_COMM_SELF, " %2" PetscInt_FMT " %g\n", index2[i], (double)x2[i]);
31: PetscPrintf(PETSC_COMM_SELF, "---------------\n");
32: PetscSortRealWithArrayInt(5, x2, index2);
33: for (i = 0; i < 5; i++) PetscPrintf(PETSC_COMM_SELF, " %2" PetscInt_FMT " %g\n", index2[i], (double)x2[i]);
35: PetscPrintf(PETSC_COMM_SELF, "\n4th test\n");
36: for (i = 0; i < 10; i++) PetscPrintf(PETSC_COMM_SELF, " %2" PetscInt_FMT " %g\n", index3[i], (double)x3[i]);
37: PetscPrintf(PETSC_COMM_SELF, "---------------\n");
38: PetscSortRealWithArrayInt(10, x3, index3);
39: for (i = 0; i < 10; i++) PetscPrintf(PETSC_COMM_SELF, " %2" PetscInt_FMT " %g\n", index3[i], (double)x3[i]);
41: PetscPrintf(PETSC_COMM_SELF, "\n5th test\n");
42: val = 44;
43: PetscFindReal(val, 10, x3, PETSC_SMALL, &loc);
44: PetscPrintf(PETSC_COMM_SELF, " %g in array: loc %" PetscInt_FMT "\n", (double)val, loc);
45: val = 309.2;
46: PetscFindReal(val, 10, x3, PETSC_SMALL, &loc);
47: PetscPrintf(PETSC_COMM_SELF, " %g in array: loc %" PetscInt_FMT "\n", (double)val, loc);
48: val = 309.2;
49: PetscFindReal(val, 10, x3, 0.21, &loc);
50: PetscPrintf(PETSC_COMM_SELF, " %g in array: loc %" PetscInt_FMT "\n", (double)val, loc);
52: PetscFinalize();
53: return 0;
54: }
56: /*TEST
58: test:
60: TEST*/