map.begin() -> bug in MR mode when called on empty map

bdd079e7 · Pierre Kraemer · df74bad6 · bdd079e7
Commit bdd079e7 authored Nov 21, 2012 by Pierre Kraemer
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include/Topology/generic/genericmap.hpp include/Topology/generic/genericmap.hpp +5 -2

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--- a/include/Topology/generic/genericmap.hpp
+++ b/include/Topology/generic/genericmap.hpp
@@ -560,8 +560,11 @@ inline Dart GenericMap::begin() const
 	if (m_isMultiRes)
 	{
 		unsigned int d = m_mrattribs.begin() ;
-		while (getDartLevel(d) > m_mrCurrentLevel)
-			m_mrattribs.next(d) ;
+		if(d != m_mrattribs.end())
+		{
+			while (getDartLevel(d) > m_mrCurrentLevel)
+				m_mrattribs.next(d) ;
+		}
 		return Dart::create(d) ;
 	}