using namespace std;
Flags global_flags;
+int flow_initialized_interpolation_quality;
// Long options that have no corresponding short option.
enum LongOption {
break;
case 'q':
global_flags.interpolation_quality = atoi(optarg);
+ global_flags.interpolation_quality_set = true;
break;
case 'd':
global_flags.working_directory = optarg;