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