1 files changed, 3 insertions, 0 deletions
diff --git a/bignum.h b/bignum.h
index cb33c62..1519c87 100644
--- a/bignum.h
+++ b/bignum.h
@@ -38,6 +38,9 @@
 #define BIG_100M { 0x44, 0x01, 0x00, 0x00, 0x00, 0x00 }
 #define BIG_1B   { 0x44, 0x10, 0x00, 0x00, 0x00, 0x00 }
 
+/* max value for a ulong */
+#define BIG_MAX_ULONG { 0x44, 0x42, 0x94, 0x96, 0x72, 0x95 }
+
 // void int_to_big(int i, bignum *b);
 // void uint_to_big(unsigned int i, bignum *b);