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-rw-r--r--parse-options.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/parse-options.h b/parse-options.h
index 14fe32428e..3a442eee26 100644
--- a/parse-options.h
+++ b/parse-options.h
@@ -202,6 +202,17 @@ const char *optname(const struct option *opt, int flags);
BUG("option callback does not expect an argument"); \
} while (0)
+/*
+ * Similar to the assertions above, but checks that "arg" is always non-NULL.
+ * This assertion also implies BUG_ON_OPT_NEG(), letting you declare both
+ * assertions in a single line.
+ */
+#define BUG_ON_OPT_NEG_NOARG(unset, arg) do { \
+ BUG_ON_OPT_NEG(unset); \
+ if(!(arg)) \
+ BUG("option callback expects an argument"); \
+} while(0)
+
/*----- incremental advanced APIs -----*/
enum {