From 0072b044274402358ed8902e36c5fa15db7e2363 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89milie=20Feral?= <emilie.feral@numworks.com>
Date: Mon, 17 Apr 2017 17:37:49 +0200
Subject: [PATCH] [apps/regression] Prediction knowing y: if the value has
 multiple antecedent (horizontal slope) reselect last cursor position

Change-Id: I730819c1c0ef5cbe0b3234368185dc7e56a74955
---
 apps/regression/go_to_parameter_controller.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/apps/regression/go_to_parameter_controller.cpp b/apps/regression/go_to_parameter_controller.cpp
index 8b7f66c3c..c9dc08c11 100644
--- a/apps/regression/go_to_parameter_controller.cpp
+++ b/apps/regression/go_to_parameter_controller.cpp
@@ -1,6 +1,7 @@
 #include "go_to_parameter_controller.h"
 #include "../apps_container.h"
 #include <assert.h>
+#include <float.h>
 
 using namespace Shared;
 using namespace Poincare;
@@ -48,6 +49,10 @@ bool GoToParameterController::setParameterAtIndex(int parameterIndex, float f) {
     return false;
   }
   if (isnan(x)) {
+    if (m_store->slope() < FLT_EPSILON && f == 0.0f) {
+      m_cursor->moveTo(m_cursor->x(), f);
+      return true;
+    }
     app()->displayWarning(I18n::Message::ValueNotReachedByRegression);
     return false;
   }