1 files changed, 7 insertions, 0 deletions
diff --git a/awk.h b/awk.h
index 55746927..4f04fc83 100644
--- a/awk.h
+++ b/awk.h
@@ -778,6 +778,10 @@ typedef struct exp_instruction {
 		void (*aptr)(void);
 		struct exp_instruction *xi;
 		struct break_point *bpt;
+		struct {
+			uint16_t mr;	// minimum required
+			uint16_t me;	// maximum expected
+		} fa;	// function args
 	} x;
 
 	short source_line;
@@ -793,6 +797,9 @@ typedef struct exp_instruction {
 
 #define expr_count      x.xl
 
+#define min_required	x.fa.mr
+#define max_expected	x.fa.me
+
 #define target_continue d.di
 #define target_jmp      d.di
 #define target_break    x.xi