1 2 static char help[] = "Tests retrieving unused PETSc options.\n\n"; 3 4 #include <petscsys.h> 5 6 7 int main(int argc,char **argv) 8 { 9 PetscErrorCode ierr; 10 PetscInt i,N,M; 11 char **names,**values; 12 PetscBool set; 13 14 ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 15 16 ierr = PetscOptionsGetInt(NULL,NULL,"-get_an_integer",&M,&set);CHKERRQ(ierr); 17 if (set) { ierr = PetscPrintf(PETSC_COMM_WORLD,"Option used: name:-get_an_integer value: %D\n",M);CHKERRQ(ierr); } 18 ierr = PetscOptionsLeftGet(NULL,&N,&names,&values);CHKERRQ(ierr); 19 for (i=0; i<N; i++) { 20 if (values[i]) { 21 ierr = PetscPrintf(PETSC_COMM_WORLD,"Option left: name:-%s value: %s\n",names[i],values[i]);CHKERRQ(ierr); 22 } else { 23 ierr = PetscPrintf(PETSC_COMM_WORLD,"Option left: name:-%s (no value)\n",names[i]);CHKERRQ(ierr); 24 } 25 } 26 ierr = PetscOptionsLeftRestore(NULL,&N,&names,&values);CHKERRQ(ierr); 27 28 ierr = PetscFinalize(); 29 return ierr; 30 } 31 32 /*TEST 33 34 test: 35 args: -unused_petsc_option_1 -unused_petsc_option_2 -get_an_integer 10 -options_left no 36 filter: egrep -v \(malloc_dump\|options_left\|nox\|vecscatter_mpi1\) 37 38 TEST*/ 39