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