From 789d17189ec694526dd88c36e175fa80440164cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9a=20Saviot?= <lea.saviot@numworks.com>
Date: Wed, 14 Nov 2018 17:42:01 +0100
Subject: [PATCH] [apps/calculation] Comment why shouldOnlyDisplayExactOutput
 is needed

---
 apps/calculation/calculation.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/apps/calculation/calculation.cpp b/apps/calculation/calculation.cpp
index 6a1833c92..ad3b097ab 100644
--- a/apps/calculation/calculation.cpp
+++ b/apps/calculation/calculation.cpp
@@ -151,6 +151,8 @@ bool Calculation::shouldOnlyDisplayApproximateOutput(Context * context) {
 }
 
 bool Calculation::shouldOnlyDisplayExactOutput() {
+  /* If the input has a "sto", we do not want to display the approximate output.
+   * This prevents x->f(x) from displaying x RoundEqual undef. */
   return strchr(m_inputText, Ion::Charset::Sto) != nullptr;
 }