From adcc211feb7827127b2548c791f2de0b6efda3d3 Mon Sep 17 00:00:00 2001
From: Hein-Pieter van Braam
Date: Tue, 14 Feb 2017 04:10:02 +0100
Subject: Make nan==nan true for GDScript

After discussing this with Reduz this seemed like the best way to
fix #7354. This will make composite values that contain NaN in the same
places as well as the same other values compare as the same.

Additionally non-composite values now also compare equal if they are
both NaN. This breaks IEEE specifications but this is probably what most
users expect. There is a GDScript function check for NaN if the user
needs this information.

This fixes #7354 and probably also fixes #6947
---
 core/math/plane.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'core/math/plane.cpp')

diff --git a/core/math/plane.cpp b/core/math/plane.cpp
index 2a9793204..0d446059c 100644
--- a/core/math/plane.cpp
+++ b/core/math/plane.cpp
@@ -164,3 +164,8 @@ Plane::operator String() const {
 
 	return normal.operator String() + ", " + rtos(d);
 }
+
+bool Plane::nan_equals(const Plane& p_plane) const {
+
+	return normal.nan_equals(p_plane.normal) && d == p_plane.d;
+}
-- 
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