const struct option *options);
extern int optbug(const struct option *opt, const char *reason);
-extern int opterror(const struct option *opt, const char *reason, int flags);
-#if defined(__GNUC__)
-#define opterror(o,r,f) (opterror((o),(r),(f)), const_error())
-#endif
+const char *optname(const struct option *opt, int flags);
+
+/*
+ * Use these assertions for callbacks that expect to be called with NONEG and
+ * NOARG respectively, and do not otherwise handle the "unset" and "arg"
+ * parameters.
+ */
+#define BUG_ON_OPT_NEG(unset) do { \
+ if ((unset)) \
+ BUG("option callback does not expect negation"); \
+} while (0)
+#define BUG_ON_OPT_ARG(arg) do { \
+ if ((arg)) \
+ BUG("option callback does not expect an argument"); \
+} while (0)
/*----- incremental advanced APIs -----*/
enum {
+ PARSE_OPT_COMPLETE = -2,
PARSE_OPT_HELP = -1,
PARSE_OPT_DONE,
PARSE_OPT_NON_OPTION,