-
- if (next == '\0') {
- *arg_desc->opt_bool = TRUE;
- return TRUE;
- }
- if (strcmp (arg_str, "false") == 0) {
- *arg_desc->opt_bool = FALSE;
- return TRUE;
- }
- if (strcmp (arg_str, "true") == 0) {
- *arg_desc->opt_bool = TRUE;
- return TRUE;
+ bool value;
+
+ if (next == '\0' || strcmp (arg_str, "true") == 0) {
+ value = true;
+ } else if (strcmp (arg_str, "false") == 0) {
+ value = false;
+ } else {
+ fprintf (stderr, "Unknown argument \"%s\" for (boolean) option \"%s\".\n", arg_str, arg_desc->name);
+ return false;