From f562886a7ed0c5a6ff17f87efd5abbaa1f3fe6f1 Mon Sep 17 00:00:00 2001
From: Hugo Saint-Vignes <hugo.saint-vignes@numworks.com>
Date: Tue, 11 Aug 2020 11:26:48 +0200
Subject: [PATCH] [poincare] Fixed crash due to infinite loop with horizontal
 layout

Change-Id: I00106525b29ce441e10a6d88766efdecd80d8291
---
 poincare/src/integral_layout.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/poincare/src/integral_layout.cpp b/poincare/src/integral_layout.cpp
index 6d6119560..9729fb9e6 100644
--- a/poincare/src/integral_layout.cpp
+++ b/poincare/src/integral_layout.cpp
@@ -266,7 +266,10 @@ IntegralLayoutNode * IntegralLayoutNode::previousNestedIntegral() {
     }
     if (p->numberOfChildren() == 1 && prev->type() == Type::IntegralLayout) {
       // We can consider the integrals in a row only if the horizontal layout just contains an integral
-      return static_cast<IntegralLayoutNode *>(prev);
+      // The horizontal layout must be the previous integral's integrand
+      if (prev->childAtIndex(0) == p) {
+        return static_cast<IntegralLayoutNode *>(prev);
+      }
     }
   }
   return nullptr;