- if (flag) {
- while ((s = _nc_expand_try(SP->_key_ok, c, &count, 0)) != 0
- && _nc_remove_key(&(SP->_key_ok), c)) {
- _nc_add_to_try(&(SP->_keytry), s, c);
+ if (c >= 0) {
+ int count = 0;
+ char *s;
+ unsigned ch = (unsigned) c;
+
+ if (flag) {
+ while ((s = _nc_expand_try(SP_PARM->_key_ok,
+ ch, &count, (size_t) 0)) != 0) {
+ if (_nc_remove_key(&(SP_PARM->_key_ok), ch)) {
+ code = _nc_add_to_try(&(SP_PARM->_keytry), s, ch);