From aa03bdb26c736e7d506d656a5529cf6a4e9fe6b4 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Wed, 13 May 2015 21:38:01 +0300
Subject: New stack class in graphics areas stack.

---
 src/resources/mstack.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src/resources/mstack.h')

diff --git a/src/resources/mstack.h b/src/resources/mstack.h
index ba1a58eb2..2a568bc5a 100644
--- a/src/resources/mstack.h
+++ b/src/resources/mstack.h
@@ -78,7 +78,7 @@ struct MStack final
             mPointer --;
     }
 
-    T &top()
+    T &top() const
     {
         return *mPointer;
     }
@@ -93,6 +93,11 @@ struct MStack final
         mPointer = mStack - 1;
     }
 
+    bool empty() const
+    {
+        return mPointer == mStartPointer;
+    }
+
     T *mStack;
 
     size_t mMaxSize;
-- 
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