#define UINT8_MAX (0xff)
#define UINT16_MAX (0xffff)
-#define UINT32_MAX (0xffffffff)
-#define UINT64_MAX (0xffffffffffffffff)
+#define UINT32_MAX (0xffffffffu)
+#define UINT64_MAX (0xffffffffffffffffu)
#define INT_FAST8_MIN INT8_MIN
#define INT_FAST64_MIN INT64_MIN