From d86ee99856e3e096e51bc3a08995d29d9853bbdf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9a=20Saviot?= <lea.saviot@numworks.com>
Date: Mon, 1 Oct 2018 17:14:59 +0200
Subject: [PATCH] [poincare] UnknownX Symbol layout is the character 'x'

---
 poincare/src/symbol.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/poincare/src/symbol.cpp b/poincare/src/symbol.cpp
index 184a29a95..0cfb86793 100644
--- a/poincare/src/symbol.cpp
+++ b/poincare/src/symbol.cpp
@@ -99,6 +99,10 @@ int SymbolNode::simplificationOrderSameType(const ExpressionNode * e, bool canBe
 }
 
 Layout SymbolNode::createLayout(Preferences::PrintFloatMode floatDisplayMode, int numberOfSignificantDigits) const {
+  if (m_name[0] == Symbol::SpecialSymbols::UnknownX) {
+    assert(m_name[1] == 0);
+    return CharLayout('x');
+  }
   if (strcmp(m_name, "u(n)") == 0) {
     return HorizontalLayout(
         CharLayout('u'),