From 8aae69055a8af1d5468a06ea322f99d770dc1f6e Mon Sep 17 00:00:00 2001
From: Ceylo <lucas.soltic@orange.fr>
Date: Mon, 9 Apr 2018 00:19:55 +0200
Subject: [PATCH] On iOS, make sure to be notified if you forgot to include
 <SFML/Main.hpp>

---
 src/SFML/Window/iOS/SFAppDelegate.mm | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/SFML/Window/iOS/SFAppDelegate.mm b/src/SFML/Window/iOS/SFAppDelegate.mm
index 4177eb3d6..ea69f41ed 100644
--- a/src/SFML/Window/iOS/SFAppDelegate.mm
+++ b/src/SFML/Window/iOS/SFAppDelegate.mm
@@ -56,6 +56,10 @@ namespace
 ////////////////////////////////////////////////////////////
 + (SFAppDelegate*)getInstance
 {
+    NSAssert(delegateInstance,
+             @"SFAppDelegate instance is nil, this means SFML was not properly initialized. "
+             "Make sure that the file defining your main() function includes <SFML/Main.hpp>");
+    
     return delegateInstance;
 }