From a3e7fa92d2ba7470651bc75eebaec53f988a906b Mon Sep 17 00:00:00 2001
From: Sandro Santilli <strk@kbt.io>
Date: Thu, 19 Oct 2023 15:35:28 +0200
Subject: [PATCH] Use all nan values to represent a null QgsRectangle

This was suggested by Benoit in
https://github.com/qgis/QGIS/pull/54646#discussion_r1330107062
---
 src/core/geometry/qgsrectangle.h | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/src/core/geometry/qgsrectangle.h b/src/core/geometry/qgsrectangle.h
index 5ae5aacc6e28..3c74f40bdadb 100644
--- a/src/core/geometry/qgsrectangle.h
+++ b/src/core/geometry/qgsrectangle.h
@@ -175,8 +175,7 @@ class CORE_EXPORT QgsRectangle
      */
     void setNull() SIP_HOLDGIL
     {
-      mXmin = mYmin = std::numeric_limits<double>::max();
-      mXmax = mYmax = -std::numeric_limits<double>::max();
+      mXmin = mYmin = mXmax = mYmax = std::numeric_limits< double >::quiet_NaN();
     }
 
     /**
@@ -641,10 +640,10 @@ class CORE_EXPORT QgsRectangle
 
   private:
 
-    double mXmin = std::numeric_limits<double>::max();
-    double mYmin = std::numeric_limits<double>::max();
-    double mXmax = -std::numeric_limits<double>::max();
-    double mYmax = -std::numeric_limits<double>::max();
+    double mXmin = std::numeric_limits< double >::quiet_NaN();
+    double mYmin = std::numeric_limits< double >::quiet_NaN();
+    double mXmax = std::numeric_limits< double >::quiet_NaN();
+    double mYmax = std::numeric_limits< double >::quiet_NaN();
 
 };