From 2c63d4869f15848d222e7fb86849d117b5b6d297 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Tue, 6 Aug 2019 21:03:51 +0200
Subject: [PATCH] fixed incorrect computation in bignum

---
 expansion.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/expansion.cpp b/expansion.cpp
index 7aef2c7c..316c093f 100644
--- a/expansion.cpp
+++ b/expansion.cpp
@@ -37,7 +37,7 @@ void bignum::addmul(const bignum& b, int factor) {
   int K = isize(b.digits);
   if(K > isize(digits)) digits.resize(K);
   int carry = 0;
-  for(int i=0; i<K || (carry > 0 && carry < -1) || (carry == -1 && i < isize(digits)); i++) {
+  for(int i=0; i<K || (carry > 0 || carry < -1) || (carry == -1 && i < isize(digits)); i++) {
     if(i >= isize(digits)) digits.push_back(0);
     long long l = digits[i];
     l += carry;