diff --git a/src/include/array/aindex.cc.h b/src/include/array/aindex.cc.h
index 13d40c1..cfd7d7d 100644
--- a/src/include/array/aindex.cc.h
+++ b/src/include/array/aindex.cc.h
@@ -3,7 +3,6 @@
 #define __cxz_aindex_cc_h__
 
 #include "aindex.h"
-#include "statics/static_for.h"
 
 namespace CNORXZ
 {
diff --git a/src/include/statics/static_for.h b/src/include/statics/static_for.h
deleted file mode 100644
index 63ff959..0000000
--- a/src/include/statics/static_for.h
+++ /dev/null
@@ -1,173 +0,0 @@
-
-#ifndef __cxz_static_for_h__
-#define __cxz_static_for_h__
-
-#include <cstdlib>
-
-namespace CNORXZ
-{
-    template <size_t BEG, size_t END, int OFF, typename Incr, typename F>
-    inline auto sfor(Incr incr, F f)
-    {
-	constexpr auto idx = std::integral_constant<size_t, BEG>{};
-	constexpr auto idxm = std::integral_constant<size_t, BEG+OFF>{};
-
-	const bool cond = f(idxm);
-	if constexpr(incr(idx) != END){
-	    if(cond){
-		sfor<incr(idx),END,OFF>(incr,f);
-	    }
-	}
-	return cond;
-    }
-
-    template <size_t BEG, size_t END, int OFF, typename Incr, typename F, typename Cond>
-    inline auto sforx(Incr incr, F f, Cond cond)
-    {
-	constexpr auto idx = std::integral_constant<size_t, BEG>{};
-	constexpr auto idxm = std::integral_constant<size_t, BEG+OFF>{};
-
-	if constexpr(incr(idx) != END){
-	    if(cond(idx)){
-		return sforx<incr(idx),END,OFF>(incr,f,cond);
-	    }
-	    else {
-		return f(idxm);
-	    }
-	}
-	else {
-	    return f(idxm);
-	}
-    }
-
-    template <size_t BEG, size_t END, int OFF, typename Incr, typename F, typename Conc>
-    inline auto sfor(Incr incr, F f, Conc conc)
-    {
-	constexpr auto idx = std::integral_constant<size_t, BEG>{};
-	constexpr auto idxm = std::integral_constant<size_t, BEG+OFF>{};
-	//static_assert(abs(idx.value - END) >= abs(incr(idx) - END),
-	//		  "this turns out to be a static endless loop");
-	auto tmp = f(idxm);
-	if constexpr(incr(idx) == END){
-	    return tmp;
-	}
-	else {
-	    return conc(tmp, sfor<incr(idx),END,OFF>(incr,f,conc));
-	}
-    }
-
-    template <size_t BEG, size_t END, int OFF, typename Incr, typename F, typename Conc, typename Arg>
-    inline auto sfor(Incr incr, F f, Conc conc, const Arg& arg)
-    {
-	constexpr auto idx = std::integral_constant<size_t, BEG>{};
-	constexpr auto idxm = std::integral_constant<size_t, BEG+OFF>{};
-	//static_assert(abs(idx.value - END) >= abs(incr(idx) - END),
-	//		  "this turns out to be a static endless loop");
-	auto tmp = f(idxm);
-	if constexpr(incr(idx) == END){
-	    return conc(tmp, arg);
-	}
-	else {
-	    return conc(tmp, sfor<incr(idx),END,OFF>(incr,f,conc,arg));
-	}
-    }
-
-    template <size_t BEG, size_t END, int OFF, typename Incr, typename F, typename Create, typename... Args>
-    inline auto unpack(Incr incr, F f, Create create, const Args&... args)
-    {
-	constexpr auto idx = std::integral_constant<size_t, BEG>{};
-	constexpr auto idxm = std::integral_constant<size_t, BEG+OFF>{};
-	//static_assert(abs(idx.value - END) >= abs(incr(idx) - END),
-	//		  "this turns out to be a static endless loop");
-	if constexpr(BEG == END){
-	    return create(args...);
-	}
-	else {
-	    auto tmp = f(idxm);
-	    return unpack<incr(idx),END,OFF>(incr, f, create, args..., tmp);
-	}
-    }
-    
-}
-
-#define MA_INC [&](auto i) constexpr { return i+1; }
-#define MA_DEC [&](auto i) constexpr { return i-1; }
-#define MA_ZCONC [&](auto a, auto b) { return 0; }
-
-namespace CNORXZ
-{
-    template <size_t BEG, size_t END, typename F>
-    inline auto sfor_p(F f)
-    {
-	return sfor<BEG,END,0>(MA_INC,f);
-    }
-
-    template <size_t BEG, size_t END, typename F>
-    inline auto sfor_m(F f)
-    {
-	return sfor<BEG,END,-1>(MA_DEC,f);
-    }
-
-    template <size_t BEG, size_t END, typename F, typename Cond>
-    inline auto sforx_p(F f, Cond cond)
-    {
-	return sforx<BEG,END,0>(MA_INC,f,cond);
-    }
-
-    template <size_t BEG, size_t END, typename F, typename Cond>
-    inline auto sforx_m(F f, Cond cond)
-    {
-	return sforx<BEG,END,-1>(MA_DEC,f,cond);
-    }
-
-    template <size_t BEG, size_t END, typename F, typename Conc>
-    inline auto sfor_p(F f, Conc conc)
-    {
-	return sfor<BEG,END,0>(MA_INC,f,conc);
-    }
-
-    template <size_t BEG, size_t END, typename F>
-    inline auto sfor_pn(F f)
-    {
-	return sfor_p<BEG,END>(f,MA_ZCONC);
-    }
-    
-    template <size_t BEG, size_t END, typename F, typename Conc>
-    inline auto sfor_m(F f, Conc conc)
-    {
-	return sfor<BEG,END,-1>(MA_DEC,f,conc);
-    }
-
-    template <size_t BEG, size_t END, typename F>
-    inline auto sfor_mn(F f)
-    {
-	return sfor_m<BEG,END>(f,MA_ZCONC);
-    }
-
-    template <size_t BEG, size_t END, typename F, typename Conc, typename Arg>
-    inline auto sfor_p(F f, Conc conc, const Arg& arg)
-    {
-	return sfor<BEG,END,0>(MA_INC,f,conc,arg);
-    }
-
-    template <size_t BEG, size_t END, typename F, typename Arg>
-    inline auto sfor_pn(F f, const Arg& arg)
-    {
-	return sfor_p<BEG,END>(f,MA_ZCONC,arg);
-    }
-    
-    template <size_t BEG, size_t END, typename F, typename Conc, typename Arg>
-    inline auto sfor_m(F f, Conc conc, const Arg& arg)
-    {
-	return sfor<BEG,END,-1>(MA_DEC,f,conc,arg);
-    }
-
-    template <size_t BEG, size_t END, typename F, typename Arg>
-    inline auto sfor_mn(F f, const Arg& arg)
-    {
-	return sfor_m<BEG,END>(f,MA_ZCONC,arg);
-    }
-
-}
-
-#endif
diff --git a/src/include/statics/traits.h b/src/include/statics/traits.h
deleted file mode 100644
index aac875e..0000000
--- a/src/include/statics/traits.h
+++ /dev/null
@@ -1,26 +0,0 @@
-
-#include "base_def.h"
-
-namespace CNORXZ
-{
-
-    template <typename T>
-    struct IsArray
-    {
-        static constexpr bool VALUE = false;
-    };
-
-#define add_array_trait(name) template <typename... X> struct IsArray<##name<X...>> { \
-        static constexpr bool VALUE = true; \
-    }
-
-    add_array_trait(DArrayBase);
-    add_array_trait(MDArrayBase);
-    add_array_trait(DArray);
-    //add_array_trait(FunctionalArray);
-    //add_array_trait(Slice);
-    //add_array_trait(ConstSlice);
-
-#undef add_array_trait
-
-}
diff --git a/src/include/utils/helper_tools.cc.h b/src/include/utils/helper_tools.cc.h
deleted file mode 100644
index c2dfb19..0000000
--- a/src/include/utils/helper_tools.cc.h
+++ /dev/null
@@ -1,398 +0,0 @@
-
-#include "helper_tools.h"
-
-namespace CNORXZ
-{
-    template <typename... T>
-    std::ostream& operator<<(std::ostream& out, const std::tuple<T...>& tp)
-    {
-	sfor_pn<0,sizeof...(T)-1>( [&](auto i){ out << std::get<i>(tp) << ", "; return 0; } );
-	out << std::get<sizeof...(T)-1>(tp);
-	return out;
-    }
-    
-    template <class RangeType>
-    auto getIndex(std::shared_ptr<RangeType> range)
-	-> std::shared_ptr<typename RangeType::IndexType>
-    {
-	return std::make_shared<typename RangeType::IndexType>(range);
-    }
-
-    template <class RangeType>
-    auto getIndex()
-	-> std::shared_ptr<typename RangeType::IndexType>
-    {
-	static_assert( RangeType::defaultable, "Range not defaultable" );
-	static auto f = RangeType::factory();
-	static auto r = std::dynamic_pointer_cast<RangeType>( f.create() );
-	return std::make_shared<typename RangeType::IndexType>(r);
-    }
-    
-    template <class... RangeTypes>
-    auto mkMulti(std::shared_ptr<RangeTypes>... ranges)
-	-> std::shared_ptr<MultiRange<RangeTypes...> >
-    {
-	MultiRangeFactory<RangeTypes...> mrf( ranges... );
-	return std::dynamic_pointer_cast<MultiRange<RangeTypes...> >( mrf.create() );
-    }
-
-    namespace
-    {
-	template <size_t N>
-	struct IndexToRangeTuple
-	{
-	    template <class... IndexTypes>
-	    static inline void set(std::tuple<std::shared_ptr<typename IndexTypes::RangeType>...>& out,
-		     const std::tuple<std::shared_ptr<IndexTypes>...>& indices)
-	    {
-		std::get<N>(out) = std::get<N>(indices)->range();
-		IndexToRangeTuple<N-1>::set(out,indices);
-	    }
-	};
-
-	template <>
-	struct IndexToRangeTuple<0>
-	{
-	    template <class... IndexTypes>
-	    static inline void set(std::tuple<std::shared_ptr<typename IndexTypes::RangeType>...>& out,
-		     const std::tuple<std::shared_ptr<IndexTypes>...>& indices)
-	    {
-		std::get<0>(out) = std::get<0>(indices)->range();
-	    }
-	};
-    }
-    
-    template <class... IndexTypes>
-    auto indexToRangeTuple(const std::tuple<std::shared_ptr<IndexTypes>...>& indices)
-	-> std::tuple<std::shared_ptr<typename IndexTypes::RangeType>...>
-    {
-	std::tuple<std::shared_ptr<typename IndexTypes::RangeType>...> out;
-	IndexToRangeTuple<sizeof...(IndexTypes)-1>::set(out, indices);
-	return out;
-    }
-
-    template <class... IndexTypes>
-    auto mkMIndex(std::shared_ptr<IndexTypes>... indices)
-	-> decltype( getIndex( mkMulti( indices->range()... ) ) )
-    {
-	auto mi = getIndex( mkMulti( indices->range()... ) );	    
-	(*mi)( indices... );
-	return mi;
-    }
-
-    template <class... IndexTypes>
-    auto mkMIndex(const std::tuple<std::shared_ptr<IndexTypes>...>& indices)
-	-> decltype( getIndex( mkMulti( indexToRangeTuple(indices) ) ) )
-    {
-	auto mi = getIndex( mkMulti( indexToRangeTuple(indices) ) );	    
-	(*mi)( indices );
-	return mi;
-    }
-
-
-    template <class Index>
-    auto mkIndexW(const std::shared_ptr<Index>& ind)
-	-> std::shared_ptr<IndexW>
-    {
-	return std::make_shared<IndexWrapper<Index>>(ind);
-    }
-
-    template <SpaceType STYPE, class Op, class MA, class... RangeTypes>
-    auto mkGenMapR(const std::tuple<Op,MA>& f, std::shared_ptr<RangeTypes>... ranges)
-	-> std::shared_ptr<GenMapRange<MapORType<Op,STYPE>,Op,STYPE,RangeTypes...> >
-    {
-        GenMapRangeFactory<MapORType<Op,STYPE>,Op,STYPE,RangeTypes...> mrf(f, ranges... );
-	return createExplicit( mrf );
-    }
-
-    template <SpaceType STYPE, class ORType, class Op, class MA, class... RangeTypes>
-    auto mkGenMapRwith(const std::shared_ptr<ORType>& outr, const std::tuple<Op,MA>& f,
-                       std::shared_ptr<RangeTypes>... ranges)
-	-> std::shared_ptr<GenMapRange<ORType,Op,STYPE,RangeTypes...> >
-    {
-        GenMapRangeFactory<ORType,Op,STYPE,RangeTypes...> mrf(outr, f, ranges... );
-	return createExplicit( mrf );
-    }
-
-    template <SpaceType STYPE, class Op, class MA, class... IndexTypes>
-    auto mkGenMapI(const std::tuple<Op,MA>& f, std::shared_ptr<IndexTypes>... indices)
-	-> decltype( getIndex( mkGenMapR<STYPE>( f, indices->range()... ) ) )
-    {
-	auto mi = getIndex( mkGenMapR<STYPE>( f, indices->range()... ) );
-	(*mi)(indices...);
-	return mi;
-    }
-    
-    template <class Op, class MA, class... RangeTypes>
-    auto mkMapR(const std::tuple<Op,MA>& f, std::shared_ptr<RangeTypes>... ranges)
-	-> decltype( mkGenMapR<SpaceType::ANY>(f, ranges... ) )
-    {
-        return mkGenMapR<SpaceType::ANY>(f, ranges... );
-    }
-
-    template <class ORType, class Op, class MA, class... RangeTypes>
-    auto mkMapRwith(const std::shared_ptr<ORType>& outr, const std::tuple<Op,MA>& f,
-                    std::shared_ptr<RangeTypes>... ranges)
-	-> decltype( mkGenMapRwith<SpaceType::ANY>(outr, f, ranges... ) )
-    {
-        return mkGenMapRwith<SpaceType::ANY>(outr, f, ranges... );
-    }
-
-    template <class Func, class... Indices>
-    auto mkMapR(const std::shared_ptr<Func>& func, const std::shared_ptr<Indices>&... is)
-	-> decltype( mkMapR( mkMapOp( func, is... ), is->range()... ) )
-    {
-	return mkMapR( mkMapOp( func, is... ), is->range()... );
-    }
-
-    template <class ORType, class Func, class... Indices>
-    auto mkMapRwith(const std::shared_ptr<ORType>& outr, const std::shared_ptr<Func>& func, const std::shared_ptr<Indices>&... is)
-	-> decltype( mkMapRwith(outr, mkMapOp( func, is... ), is->range()... ) )
-    {
-	return mkMapRwith(outr, mkMapOp( func, is... ), is->range()... );
-    }
-
-    template <class Op, class MA, class... IndexTypes>
-    auto mkMapI(const std::tuple<Op,MA>& f, std::shared_ptr<IndexTypes>... indices)
-	-> decltype( mkGenMapI<SpaceType::ANY>(f, indices... ) )
-    {
-        return mkGenMapI<SpaceType::ANY>(f, indices... );
-    }
-
-    template <class... RangeTypes>
-    auto mkMulti(std::tuple<std::shared_ptr<RangeTypes>...> rangesTuple)
-	-> std::shared_ptr<MultiRange<RangeTypes...>>
-    {
-	MultiRangeFactory<RangeTypes...> mrf( rangesTuple );
-	return std::dynamic_pointer_cast<MultiRange<RangeTypes...> >( mrf.create() );
-    }
-
-    template <class RangeFactory>
-    auto createExplicit(RangeFactory& rf)
-	-> std::shared_ptr<typename RangeFactory::oType>
-    {
-	return std::dynamic_pointer_cast<typename RangeFactory::oType>( rf.create() );
-    }
-
-    template <class RangeFactory>
-    auto createExplicit(std::shared_ptr<RangeFactory> rfp)
-	-> std::shared_ptr<typename RangeFactory::oType>
-    {
-	return std::dynamic_pointer_cast<typename RangeFactory::oType>( rfp->create() );
-    }
-
-    template <class Range>
-    auto createRange(const vector<char>& cvec)
-	-> std::shared_ptr<Range>
-    {
-	const char* dp = cvec.data();
-	auto ff = createRangeFactory(&dp);
-	auto rbptr = ff->create();
-	assert(rbptr->spaceType() == Range::STYPE);
-	// CATCH CAST ERROR HERE !!!
-	return std::dynamic_pointer_cast<Range>( rbptr );
-    }
-
-    inline auto createRange(const vector<char>* cvec, int metaType, size_t size)
-        -> std::shared_ptr<RangeBase>
-    {
-        auto f = createSingleRangeFactory(cvec, metaType, size);
-        return f->create();
-    }
-
-    inline auto createRangeA(const vector<char>* cvec, int metaType, size_t size)
-	-> std::shared_ptr<AnonymousRange>
-    {
-        AnonymousRangeFactory arf(createRange(cvec, metaType, size));
-        return createExplicit(arf);
-    }
-
-    inline auto cvecMetaCast(const std::shared_ptr<SingleRange<vector<char>,SpaceType::ANY>>& r, int metaType)
-        -> std::shared_ptr<RangeBase>
-    {
-        return createRange(&r->get(0), metaType, r->size());
-    }
-
-    inline auto cvecMetaCastA(const std::shared_ptr<SingleRange<vector<char>,SpaceType::ANY>>& r, int metaType)
-        -> std::shared_ptr<AnonymousRange>
-    {
-        return createRangeA(&r->get(0), metaType, r->size());
-    }
-
-    template <class Range, typename... Args>
-    auto createRangeE(Args&&... args)
-        -> std::shared_ptr<Range>
-    {
-        typename Range::FType f(args...);
-        return createExplicit(f);
-    }
-
-    template <size_t N, class MArray>
-    auto rptr(const MArray& ma)
-	-> decltype(ma.template getRangePtr<N>())
-    {
-	return ma.template getRangePtr<N>();
-    }
-
-
-    template <class MArray>
-    auto dynamic(const MArray& ma, bool slice)
-	-> std::shared_ptr<ArrayBase<typename MArray::value_type,DynamicRange>>
-    {
-	DynamicRangeFactory drf(ma.range()->space());
-	if(slice){
-	    return std::make_shared<ConstSlice<typename MArray::value_type,DynamicRange>>
-		( std::dynamic_pointer_cast<DynamicRange>( drf.create() ),
-		  ma.data() );
-	}
-	else {
-	    return std::make_shared<Array<typename MArray::value_type,DynamicRange>>
-		( std::dynamic_pointer_cast<DynamicRange>( drf.create() ),
-		  ma.vdata() );
-	}
-    }
-
-    template <class MArray>
-    auto mdynamic(MArray& ma, bool slice)
-	-> std::shared_ptr<MutableArrayBase<typename MArray::value_type,DynamicRange>>
-    {
-	DynamicRangeFactory drf(ma.range()->space());
-	if(slice){
-	    return std::make_shared<Slice<typename MArray::value_type,DynamicRange>>
-		( std::dynamic_pointer_cast<DynamicRange>( drf.create() ),
-		  ma.data() );
-	}
-	else {
-	    return std::make_shared<Array<typename MArray::value_type,DynamicRange>>
-		( std::dynamic_pointer_cast<DynamicRange>( drf.create() ),
-		  ma.vdata() );
-	}
-    }
-
-    namespace
-    {
-	template <size_t N>
-	struct CopyRanges
-	{
-	    template <class Space1, class Space2>
-	    static inline void exec(const Space1& space1, Space2& space2)
-	    {
-		std::get<N>(space2) = std::get<N>(space1);
-		CopyRanges<N-1>::exec(space1,space2);
-	    }
-	};
-
-	template <>
-	struct CopyRanges<0>
-	{
-	    template <class Space1, class Space2>
-	    static inline void exec(const Space1& space1, Space2& space2)
-	    {
-		std::get<0>(space2) = std::get<0>(space1);
-	    }
-	};
-    }
-    
-    template <typename T, class Range1, class... RangeTypes>
-    auto anonToDynView(const ArrayBase<T,Range1,RangeTypes...,AnonymousRange>& ma)
-	-> ConstSlice<T,Range1,RangeTypes...,DynamicRange>
-    {
-	constexpr size_t LAST = sizeof...(RangeTypes)+1;
-	DynamicRangeFactory drf(rptr<LAST>(ma)->orig());
-	std::tuple<std::shared_ptr<Range1>,std::shared_ptr<RangeTypes>...,
-		   std::shared_ptr<DynamicRange>> mNSpace;
-	CopyRanges<LAST-1>::exec(ma.range()->space(),mNSpace);
-	std::get<LAST>(mNSpace) = createExplicit( drf );
-	return ConstSlice<T,Range1,RangeTypes...,DynamicRange>(mNSpace, ma.data());
-    }
-
-    template <typename T, class Range1, class... RangeTypes>
-    auto anonToDynView(MutableArrayBase<T,Range1,RangeTypes...,AnonymousRange>& ma)
-	-> Slice<T,Range1,RangeTypes...,DynamicRange>
-    {
-	constexpr size_t LAST = sizeof...(RangeTypes)+1;
-	DynamicRangeFactory drf(rptr<LAST>(ma)->orig());
-	std::tuple<std::shared_ptr<Range1>,std::shared_ptr<RangeTypes>...,
-		   std::shared_ptr<DynamicRange>> mNSpace;
-	CopyRanges<LAST-1>::exec(ma.range()->space(),mNSpace);
-	std::get<LAST>(mNSpace) = createExplicit( drf );
-	return Slice<T,Range1,RangeTypes...,DynamicRange>(mNSpace, ma.data());
-    }
-
-    template <typename T, class Range1, class... RangeTypes>
-    auto dynToAnonMove(Array<T,Range1,RangeTypes...,DynamicRange>&& ma)
-	-> Array<T,Range1,RangeTypes...,AnonymousRange>
-    {
-	constexpr size_t LAST = sizeof...(RangeTypes)+1;
-	AnonymousRangeFactory arf(rptr<LAST>(ma)->orig());
-	std::tuple<std::shared_ptr<Range1>,std::shared_ptr<RangeTypes>...,
-		   std::shared_ptr<AnonymousRange>> mNSpace;
-	CopyRanges<LAST-1>::exec(ma.range()->space(),mNSpace);
-	std::get<LAST>(mNSpace) = createExplicit( arf );
-	return ma.format(mNSpace);
-    }
-
-    template <typename T>
-    auto anonToDynView(const ArrayBase<T,AnonymousRange>& ma)
-	-> ConstSlice<T,DynamicRange>
-    {
-	DynamicRangeFactory drf(rptr<0>(ma)->orig());
-	auto mNSpace = std::make_tuple( createExplicit( drf ) );
-	return ConstSlice<T,DynamicRange>(mNSpace, ma.data());
-    }
-
-    template <typename T>
-    auto anonToDynView(MutableArrayBase<T,AnonymousRange>& ma)
-	-> Slice<T,DynamicRange>
-    {
-	DynamicRangeFactory drf(rptr<0>(ma)->orig());
-	auto mNSpace = std::make_tuple( createExplicit( drf ) );
-	return Slice<T,DynamicRange>(mNSpace, ma.data());
-    }
-
-    template <typename T>
-    auto dynToAnonMove(Array<T,DynamicRange>&& ma)
-	-> Array<T,AnonymousRange>
-    {
-	AnonymousRangeFactory arf(rptr<0>(ma)->orig());
-	auto mNSpace = std::make_tuple( createExplicit( arf ) );
-	return ma.format(mNSpace);
-    }
-
-    template <class Range>
-    auto metaSlice(const std::shared_ptr<Range>& r)
-        -> ConstSlice<typename Range::MetaType,ClassicRange>
-    {
-        ClassicRF crf(r->size());
-        return ConstSlice<typename Range::MetaType,ClassicRange>( createExplicit(crf), &r->get(0) );
-    }
-
-    template <class Range, class ORange>
-    auto metaSlice(const std::shared_ptr<Range>& r, const std::shared_ptr<ORange>& ro)
-        -> ConstSlice<typename Range::MetaType,ORange>
-    {
-        return ConstSlice<typename Range::MetaType,ORange>( ro, &r->get(0) );
-    }
-
-    template <typename T, class... Ranges>
-    auto mkArray(const std::shared_ptr<Ranges>&... rs)
-        -> Array<T,Ranges...>
-    {
-        return Array<T,Ranges...>(rs...);
-    }
-
-    template <typename T, class... Ranges>
-    auto mkArray(const std::shared_ptr<Ranges>&... rs, const T& val)
-        -> Array<T,Ranges...>
-    {
-        return Array<T,Ranges...>(rs..., val);
-    }
-
-    template <typename T, class... Ranges>
-    auto mkArrayPtr(const std::shared_ptr<Ranges>&... rs)
-        -> std::shared_ptr<Array<T,Ranges...>>
-    {
-	return std::make_shared<Array<T,Ranges...>>(rs...);
-    }
-
-}
diff --git a/src/include/utils/helper_tools.h b/src/include/utils/helper_tools.h
deleted file mode 100644
index 403ef70..0000000
--- a/src/include/utils/helper_tools.h
+++ /dev/null
@@ -1,238 +0,0 @@
-
-#ifndef __cxz_helper_tools_h__
-#define __cxz_helper_tools_h__
-
-#include "base_def.h"
-#include "slice.h"
-#include <ostream>
-#include "map_range.h"
-#include <functional>
-#include "xpr/iloop.h"
-
-namespace CNORXZ
-{
-    
-    template <typename... T>
-    std::ostream& operator<<(std::ostream& out, const std::tuple<T...>& tp);
-
-    template <class RangeType>
-    auto getIndex(std::shared_ptr<RangeType> range)
-	-> std::shared_ptr<typename RangeType::IndexType>;
-
-    // only if 'RangeType' is defaultable and unique (Singleton)
-    template <class RangeType>
-    auto getIndex() -> std::shared_ptr<typename RangeType::IndexType>;
-
-    template <class... RangeTypes>
-    auto mkMulti(std::shared_ptr<RangeTypes>... ranges)
-	-> std::shared_ptr<MultiRange<RangeTypes...> >;
-
-    template <class Op, SpaceType XSTYPE>
-    using MapORType = SingleRange<typename Op::value_type,XSTYPE>;
-
-    template <SpaceType STYPE, class Op, class MA, class... RangeTypes>
-    auto mkGenMapR(const std::tuple<Op,MA>& f, std::shared_ptr<RangeTypes>... ranges)
-	-> std::shared_ptr<GenMapRange<MapORType<Op,STYPE>,Op,STYPE,RangeTypes...> >;
-    
-    template <SpaceType STYPE, class ORType, class Op, class MA, class... RangeTypes>
-    auto mkGenMapRwith(const std::shared_ptr<ORType>& outr, const std::tuple<Op,MA>& f,
-                       std::shared_ptr<RangeTypes>... ranges)
-	-> std::shared_ptr<GenMapRange<ORType,Op,STYPE,RangeTypes...> >;
-
-    template <SpaceType STYPE, class Op, class MA, class... IndexTypes>
-    auto mkGenMapI(const std::tuple<Op,MA>& f, std::shared_ptr<IndexTypes>... indices)
-	-> decltype( getIndex( mkGenMapR<STYPE>( f, indices->range()... ) ) );
-
-    template <class Op, class MA, class... RangeTypes>
-    auto mkMapR(const std::tuple<Op,MA>& f, std::shared_ptr<RangeTypes>... ranges)
-	-> decltype( mkGenMapR<SpaceType::ANY>(f, ranges... ) );
-    
-    template <class ORType, class Op, class MA, class... RangeTypes>
-    auto mkMapRwith(const std::shared_ptr<ORType>& outr, const std::tuple<Op,MA>& f, std::shared_ptr<RangeTypes>... ranges)
-	-> decltype( mkGenMapRwith<SpaceType::ANY>(outr, f, ranges... ) );
-
-    template <class Func, class... Indices>
-    auto mkMapR(const std::shared_ptr<Func>& func, const std::shared_ptr<Indices>&... is)
-	-> decltype( mkMapR( mkMapOp( func, is... ), is->range()... ) );
-
-    template <class ORType, class Func, class... Indices>
-    auto mkMapRwith(const std::shared_ptr<ORType>& outr, const std::shared_ptr<Func>& func, const std::shared_ptr<Indices>&... is)
-	-> decltype( mkMapRwith(outr, mkMapOp( func, is... ), is->range()... ) );
-
-    template <class Op, class MA, class... IndexTypes>
-    auto mkMapI(const std::tuple<Op,MA>& f, std::shared_ptr<IndexTypes>... indices)
-	-> decltype( mkGenMapI<SpaceType::ANY>(f, indices... ) );
-
-    template <class... IndexTypes>
-    auto indexToRangeTuple(const std::tuple<std::shared_ptr<IndexTypes>...>& indices)
-	-> std::tuple<std::shared_ptr<typename IndexTypes::RangeType>...>;
-
-    template <class... RangeTypes>
-    auto mkMulti(std::tuple<std::shared_ptr<RangeTypes>...> rangesTuple)
-	-> std::shared_ptr<MultiRange<RangeTypes...>>;
-    
-    template <class... IndexTypes>
-    auto mkMIndex(std::shared_ptr<IndexTypes>... indices)
-	-> decltype( getIndex( mkMulti( indices.range()... ) ) );
-
-    template <class... IndexTypes>
-    auto mkMIndex(const std::tuple<std::shared_ptr<IndexTypes>...>& indices)
-	-> decltype( getIndex( mkMulti( indexToRangeTuple(indices) ) ) );
-
-    template <class Index>
-    auto mkIndexW(const std::shared_ptr<Index>& ind)
-	-> std::shared_ptr<IndexW>;
-
-
-    template <class RangeFactory>
-    auto createExplicit(RangeFactory& rf)
-	-> std::shared_ptr<typename RangeFactory::oType>;
-
-    template <class RangeFactory>
-    auto createExplicit(std::shared_ptr<RangeFactory> rfp)
-	-> std::shared_ptr<typename RangeFactory::oType>;
-
-    template <class Range>
-    auto createRange(const vector<char>& cvec)
-	-> std::shared_ptr<Range>;
-
-    inline auto createRange(const vector<char>* cvec, int metaType, size_t size)
-	-> std::shared_ptr<RangeBase>;
-
-    inline auto createRangeA(const vector<char>* cvec, int metaType, size_t size)
-	-> std::shared_ptr<AnonymousRange>;
-
-    template <class Range, typename... Args>
-    auto createRangeE(Args&&... args)
-        -> std::shared_ptr<Range>;
-    
-    template <size_t N, class MArray>
-    auto rptr(const MArray& ma)
-	-> decltype(ma.template getRangePtr<N>());
-
-    template <size_t I, class MIndex>
-    auto get(const std::shared_ptr<MIndex>& i)
-        -> decltype(i->template getPtr<I>())
-    {
-        return i->template getPtr<I>();
-    }
-    
-    template <class MArray>
-    auto dynamic(const MArray& ma, bool slice = false)
-	-> std::shared_ptr<ArrayBase<typename MArray::value_type,DynamicRange>>;
-
-    template <class MArray>
-    auto mdynamic(MArray& ma, bool slice)
-	-> std::shared_ptr<MutableArrayBase<typename MArray::value_type,DynamicRange>>;
-    
-    template <typename T, class Range1, class... RangeTypes>
-    auto anonToDynView(const ArrayBase<T,Range1,RangeTypes...,AnonymousRange>& ma)
-	-> ConstSlice<T,Range1,RangeTypes...,DynamicRange>;
-
-    template <typename T, class Range1, class... RangeTypes>
-    auto anonToDynView(MutableArrayBase<T,Range1,RangeTypes...,AnonymousRange>& ma)
-	-> Slice<T,Range1,RangeTypes...,DynamicRange>;
-
-    template <typename T, class Range1, class... RangeTypes>
-    auto dynToAnonMove(Array<T,Range1,RangeTypes...,DynamicRange>&& ma)
-	-> Array<T,Range1,RangeTypes...,AnonymousRange>;
-
-    template <typename T>
-    auto anonToDynView(const ArrayBase<T,AnonymousRange>& ma)
-	-> ConstSlice<T,DynamicRange>;
-
-    template <typename T>
-    auto anonToDynView(MutableArrayBase<T,AnonymousRange>& ma)
-	-> Slice<T,DynamicRange>;
-
-    template <typename T>
-    auto dynToAnonMove(Array<T,DynamicRange>&& ma)
-	-> Array<T,AnonymousRange>;
-
-    template <class Range>
-    auto metaSlice(const std::shared_ptr<Range>& r)
-        -> ConstSlice<typename Range::MetaType,ClassicRange>;
-
-    template <class Range, class ORange>
-    auto metaSlice(const std::shared_ptr<Range>& r, const std::shared_ptr<ORange>& ro)
-        -> ConstSlice<typename Range::MetaType,ORange>;
-
-    template <typename T, class... Ranges>
-    auto mkArray(const std::shared_ptr<Ranges>&... rs)
-        -> Array<T,Ranges...>;
-
-    template <typename T, class... Ranges>
-    auto mkArrayPtr(const std::shared_ptr<Ranges>&... rs)
-        -> std::shared_ptr<Array<T,Ranges...>>;
-
-    template <typename T, class... Ranges>
-    auto mkArray(const std::shared_ptr<Ranges>&... rs, const T& val)
-        -> Array<T,Ranges...>;
-
-    template <class OpTp, class IndTp, class VarTp, class LTp>
-    auto mkILoop(const OpTp& opTp, const IndTp& indTp, const VarTp& varTp, const LTp& lTp,
-                 const std::array<size_t,std::tuple_size<LTp>::value>& umpos,
-                 const std::array<size_t,std::tuple_size<VarTp>::value>& setzero)
-        -> CNORXZInternal::ILoop<OpTp,IndTp,VarTp,LTp>
-    {
-        return CNORXZInternal::ILoop<OpTp,IndTp,VarTp,LTp>(opTp, indTp, varTp, lTp, umpos, setzero);
-    }
-
-    template <class CF>
-    auto mkPILoop(const CF& cf)
-        -> CNORXZInternal::PILoop<CF>
-    {
-        return CNORXZInternal::PILoop<CF>(cf);
-    }
-
-    template <class IndexType>
-    inline void For(const std::shared_ptr<IndexType>& ind, const std::function<void(void)>& ll)
-    {
-	for((*ind) = 0; ind->pos() != ind->max(); ++(*ind)){
-	    ll();
-	}
-    }
-
-    // parallel:
-    template <class IndexType>
-    inline void PFor(const std::shared_ptr<IndexType>& ind,
-                    const std::function<void(const std::shared_ptr<IndexType>&)>& ll)
-    {
-        const int max = static_cast<int>(ind->max());
-        int i = 0;
-#pragma omp parallel shared(ind,ll) private(i)
-        {
-#pragma omp for nowait
-            for(i = 0; i < max; i++) {
-                auto ii = getIndex( ind->range() );
-                ((*ii) = i)();
-                ll(ii);
-            }
-        }
-    }
-
-
-    template <class Index>
-    inline auto mkOp(const std::shared_ptr<Index>& i)
-	-> decltype(std::declval<FunctionalArray<typename Index::MetaType,
-		    identity<typename Index::MetaType>,typename Index::RangeType> >
-		    ().exec(i))
-    {
-	FunctionalArray<typename Index::MetaType,
-			     identity<typename Index::MetaType>,
-			     typename Index::RangeType> fma(i->range());
-	return fma.exec(i);
-    }
-
-    template <typename R, typename... Ts>
-    struct Func
-    {
-        static inline std::shared_ptr<function<R,Ts...>> mk(const std::function<R(Ts...)>& ll)
-        {
-            return std::make_shared<function<R,Ts...>>(ll);
-        }
-    };
-}
-
-
-#endif