@@ -130,6 +130,9 @@

 #define MIN_int(a, b) (((a)<(b))?(a):(b))

 #define MAX_int(a, b) (((a)>(b))?(a):(b))

+#define MIN_unsigned(a, b) (unsigned)(((unsigned)(a)<(unsigned)(b))?(a):(b))

+#define MAX_unsigned(a, b) (unsigned)(((unsigned)(a)>(unsigned)(b))?(a):(b))

+

 #if 0

 #define MIN_int(a, b) ((b)+(((a)-(b))& -((a)<(b))))

 #define MAX_int(a, b) ((a)-(((a)-(b))& -((b)>(a))))