From b7649bab8a9d95ae485c8c773a0e7bbca0adaee9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89milie=20Feral?= <emilie.feral@numworks.com>
Date: Wed, 26 Sep 2018 14:56:09 +0200
Subject: [PATCH] [poincare] deepReduce is authorized on non-matrix expressions
 only

---
 poincare/src/expression.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/poincare/src/expression.cpp b/poincare/src/expression.cpp
index 8189400f5..1cbb03a87 100644
--- a/poincare/src/expression.cpp
+++ b/poincare/src/expression.cpp
@@ -272,6 +272,7 @@ Expression Expression::simplify(Context & context, Preferences::AngleUnit angleU
 }
 
 Expression Expression::deepReduce(Context & context, Preferences::AngleUnit angleUnit) {
+  assert(!recursivelyMatches(IsMatrix, context));
   for (int i = 0; i < numberOfChildren(); i++) {
     childAtIndex(i).deepReduce(context, angleUnit);
   }