40 static const char *match_opt(int optchar, const char *optstring);
155 int OS_GetOpt(const char *optstring)  in OS_GetOpt()  argument
167     if (optstring == NULL)  in OS_GetOpt()
182     if (optstring[0] == '-')           // Minus Mode  in OS_GetOpt()
199             return OS_GetOpt(optstring);  in OS_GetOpt()
223     opt = match_opt(optchar, optstring);  in OS_GetOpt()
254 static const char *match_opt(int optchar, const char *optstring)  in match_opt()  argument
256     if (optstring[0] == '-' || optstring[0] == '+')  in match_opt()
258         optstring++;  in match_opt()
263         while (*optstring)  in match_opt()
265             if (optchar == *optstring)  in match_opt()
267                 return optstring;  in match_opt()
269             optstring++;  in match_opt()