From 5e9d05a9f41aefc382b8f4da7eec00c5e31a0a4e Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@php.net>
Date: Wed, 19 Jun 2019 22:29:31 -0500
Subject: [PATCH] BigInteger: fix issues with divide method

---
 phpseclib/Math/BigInteger.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/phpseclib/Math/BigInteger.php b/phpseclib/Math/BigInteger.php
index 9d41a5c2..000f2bcc 100644
--- a/phpseclib/Math/BigInteger.php
+++ b/phpseclib/Math/BigInteger.php
@@ -1586,7 +1586,9 @@ class Math_BigInteger
             $temp_value = array($quotient_value[$q_index]);
             $temp = $temp->multiply($y);
             $temp_value = &$temp->value;
-            $temp_value = array_merge($adjust, $temp_value);
+            if ($temp_value !== []) {
+                $temp_value = array_merge($adjust, $temp_value);
+            }
 
             $x = $x->subtract($temp);
 
@@ -3628,6 +3630,7 @@ class Math_BigInteger
         $value = &$result->value;
 
         if (!count($value)) {
+            $result->is_negative = false;
             return $result;
         }