+ if (argc < 2) {
+ fprintf(stderr, "%s func%s\n", argv[0], checkmode ? " ulpthres" : "");
+ return 1;
+ }
+ if (argc > 2 && checkmode) {
+ ulpthres = strtod(argv[2], &p);
+ if (*p) {
+ fprintf(stderr, "invalid ulperr %s\n", argv[2]);
+ return 1;
+ }
+ }