1 2 static char help[] = "Tests retrieving unused PETSc options.\n\n"; 3 4 #include <petscsys.h> 5 6 int main(int argc, char **argv) 7 { 8 PetscInt i, N, M; 9 char **names, **values; 10 PetscBool set; 11 12 PetscFunctionBeginUser; 13 PetscCall(PetscInitialize(&argc, &argv, (char *)0, help)); 14 15 PetscCall(PetscOptionsGetInt(NULL, NULL, "-get_an_integer", &M, &set)); 16 if (set) PetscCall(PetscPrintf(PETSC_COMM_WORLD, "Option used: name:-get_an_integer value: %" PetscInt_FMT "\n", M)); 17 PetscCall(PetscOptionsLeftGet(NULL, &N, &names, &values)); 18 for (i = 0; i < N; i++) { 19 if (values[i]) { 20 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "Option left: name:-%s value: %s\n", names[i], values[i])); 21 } else { 22 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "Option left: name:-%s (no value)\n", names[i])); 23 } 24 } 25 PetscCall(PetscOptionsLeftRestore(NULL, &N, &names, &values)); 26 27 PetscCall(PetscFinalize()); 28 return 0; 29 } 30 31 /*TEST 32 33 test: 34 suffix: debug 35 requires: defined(PETSC_USE_DEBUG) 36 args: -unused_petsc_option_1 -unused_petsc_option_2 -get_an_integer 10 -options_left no 37 38 test: 39 suffix: opt 40 requires: !defined(PETSC_USE_DEBUG) 41 args: -unused_petsc_option_1 -unused_petsc_option_2 -get_an_integer 10 -options_left no 42 43 TEST*/ 44