From 20a3fbbd110a6a3b998dc84b3ab4ad283025bc0b Mon Sep 17 00:00:00 2001
From: tiagofneto <tiagofneto29@gmail.com>
Date: Fri, 27 Oct 2023 15:55:52 +0600
Subject: [PATCH] fix: Words64 into u256 empty words

---
 src/utils/types/words64.cairo | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/utils/types/words64.cairo b/src/utils/types/words64.cairo
index 758f2b1..2537bff 100644
--- a/src/utils/types/words64.cairo
+++ b/src/utils/types/words64.cairo
@@ -12,6 +12,10 @@ impl Words64TryIntoU256LE of TryInto<Words64, u256> {
             return Option::None(());
         }
 
+        if self.len() == 0 {
+            return Option::Some(0);
+        }
+
         let pows = array![
             0x10000000000000000, // 2 ** 64
             0x100000000000000000000000000000000, // 2 ** 128