173   int argn;  in parse_switches()  local
183   for (argn = 1; argn < argc; argn++) {  in parse_switches()
184     arg = argv[argn];  in parse_switches()
187       if (argn <= last_file_arg_seen) {  in parse_switches()
204       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
206       if (sscanf(argv[argn], "%d", &val) != 1)  in parse_switches()
213       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
215       if (keymatch(argv[argn], "int", 1)) {  in parse_switches()
217       } else if (keymatch(argv[argn], "fast", 2)) {  in parse_switches()
219       } else if (keymatch(argv[argn], "float", 2)) {  in parse_switches()
226       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
228       if (keymatch(argv[argn], "fs", 2)) {  in parse_switches()
230       } else if (keymatch(argv[argn], "none", 2)) {  in parse_switches()
232       } else if (keymatch(argv[argn], "ordered", 2)) {  in parse_switches()
268       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
274 	if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) {  in parse_switches()
275 	  fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]);  in parse_switches()
291       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
293       if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)  in parse_switches()
313       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
315       outfilename = argv[argn];	/* save it away for later use */  in parse_switches()
327       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
329       if (sscanf(argv[argn], "%d/%d",  in parse_switches()
342   return argn;			/* return index of next arg (file name) */  in parse_switches()