From e1ff0097718acb3d2830ca752467063a8685f973 Mon Sep 17 00:00:00 2001
From: dismine <dismine@gmail.com>
Date: Sun, 9 Nov 2014 16:28:44 +0200
Subject: [PATCH] Check if stack is empty like in origin muparser.

--HG--
branch : develop
---
 src/libs/qmuparser/qmuparserbase.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/libs/qmuparser/qmuparserbase.cpp b/src/libs/qmuparser/qmuparserbase.cpp
index b5e83a81e..c627e1f80 100644
--- a/src/libs/qmuparser/qmuparserbase.cpp
+++ b/src/libs/qmuparser/qmuparserbase.cpp
@@ -773,6 +773,10 @@ void QmuParserBase::ApplyFunc( QStack<token_type> &a_stOpt, QStack<token_type> &
     QVector<token_type> stArg;
     for (int i=0; i<iArgNumerical; ++i)
     {
+        if (a_stVal.isEmpty())// Check if stack is empty like in origin muparser.
+        {
+            Error(ecUNASSIGNABLE_TOKEN, m_pTokenReader->GetPos(), funTok.GetAsString());
+        }
         stArg.push_back( a_stVal.pop() );
         if ( stArg.back().GetType()==tpSTR && funTok.GetType()!=tpSTR )
         {