update foreach_dart functions

include/Topology/generic/mapImpl/mapMono.h

@@ -126,9 +126,13 @@ public:
 
 	/**
 	 * Apply a functor on each dart of the map
-	 * @param f a ref to the functor obj
+	 * @param f a callable taking a Dart parameter
 	 */
-	bool foreach_dart(FunctorType& f) ;
+	template <typename FUNC>
+	void foreach_dart(FUNC f) ;
+
+	template <typename FUNC>
+	void foreach_dart(FUNC& f) ;
 
 	/****************************************
 	 *             SAVE & LOAD              *

include/Topology/generic/mapImpl/mapMono.hpp

@@ -228,7 +228,19 @@ inline void MapMono::next(Dart& d) const
 	m_attribs[DART].next(d.index) ;
 }
 
-inline bool MapMono::foreach_dart(FunctorType& f)
+template <typename FUNC>
+inline void MapMono::foreach_dart(FUNC f)
+{
+	for (Dart d = begin(); d != end(); next(d))
+	{
+		if (f(d))
+			return true;
+	}
+	return false;
+}
+
+template <typename FUNC>
+inline void MapMono::foreach_dart(FUNC& f)
 {
 	for (Dart d = begin(); d != end(); next(d))
 	{

include/Topology/generic/mapImpl/mapMulti.h

@@ -280,9 +280,13 @@ public:
 
 	/**
 	 * Apply a functor on each dart of the map
-	 * @param f a ref to the functor obj
+	 * @param f a callable taking a Dart parameter
 	 */
-	bool foreach_dart(FunctorType& f) ;
+	template <typename FUNC>
+	void foreach_dart(FUNC f) ;
+
+	template <typename FUNC>
+	void foreach_dart(FUNC& f) ;
 
 	/****************************************
 	 *             SAVE & LOAD              *

include/Topology/generic/mapImpl/mapMulti.hpp

@@ -439,7 +439,19 @@ inline void MapMulti::next(Dart& d) const
 		d.index = m_mrattribs.end();
 }
 
-inline bool MapMulti::foreach_dart(FunctorType& f)
+template <typename FUNC>
+inline void MapMulti::foreach_dart(FUNC f)
+{
+	for (Dart d = begin(); d != end(); next(d))
+	{
+		if (f(d))
+			return true;
+	}
+	return false;
+}
+
+template <typename FUNC>
+inline void MapMulti::foreach_dart(FUNC& f)
 {
 	for (Dart d = begin(); d != end(); next(d))
 	{