char meta function in ranges

src/include/map_range.cc.h

@@ -496,12 +496,24 @@ namespace MultiArrayTools
 	return mSpace;
     }
 
+    template <class MapF, SpaceType XSTYPE, class... Ranges>
+    size_t GenMapRange<MapF,XSTYPE,Ranges...>::typeNum() const
+    {
+        return 0;
+    }
+
+    template <class MapF, SpaceType XSTYPE, class... Ranges>
+    size_t GenMapRange<MapF,XSTYPE,Ranges...>::cmeta(char* target, size_t pos) const
+    {
+        return RPackNum<sizeof...(Ranges)-1>::getCMeta(target,pos,mSpace);
+    }
+
     template <class MapF, SpaceType XSTYPE, class... Ranges>
     std::string GenMapRange<MapF,XSTYPE,Ranges...>::stringMeta(size_t pos) const
     {
 	auto i = begin();
 	i = pos;
-	return "[ " + RPackNum<sizeof...(Ranges)-1>::metaTupleToString(i.meta()) + " ]";
+        return "[ " + RPackNum<sizeof...(Ranges)-1>::getStringMeta(i) + " ]";
     }
 
     template <class MapF, SpaceType XSTYPE, class... Ranges>

src/include/map_range.h

@@ -257,6 +257,8 @@ namespace MultiArrayTools
 	virtual SpaceType spaceType() const final;
         virtual DataHeader dataHeader() const final;
         
+        virtual size_t typeNum() const final;
+        virtual size_t cmeta(char* target, size_t pos) const final;
 	virtual std::string stringMeta(size_t pos) const final;
 	virtual vector<char> data() const final;
 	

src/include/ranges/anonymous_range.h

@@ -80,6 +80,8 @@ namespace MultiArrayTools
 	virtual SpaceType spaceType() const final;
         virtual DataHeader dataHeader() const final;
         
+        virtual size_t typeNum() const final;
+        virtual size_t cmeta(char* target, size_t pos) const final;
 	virtual std::string stringMeta(size_t pos) const final;
 	virtual vector<char> data() const final;
 	

src/include/ranges/dynamic_range.cc.h

@@ -439,14 +439,9 @@ namespace MultiArrayTools
     template <class EC>
     typename DynamicRange<EC>::MetaType DynamicRange<EC>::get(size_t pos) const
     {
-	for(size_t i = mOrig.size(); i != 0; --i) {
+        std::vector<char> out(cmeta(nullptr,0));
-	    auto& x = mOrig[i-1];
+        cmeta(out.data(),pos);
-	    const size_t redpos = pos % x->size();
+        return out;
-	    out = out + x->stringMeta(redpos);
-	    pos -= redpos;
-	    pos /= x->size();
-	}
-	return MetaType(); // !!!
     }
 
     template <class EC>
@@ -479,6 +474,27 @@ namespace MultiArrayTools
 	return mEmpty;
     }
 
+    template <class EC>
+    size_t DynamicRange<EC>::typeNum() const
+    {
+        return 0;
+    }
+
+    template <class EC>
+    size_t DynamicRange<EC>::cmeta(char* target, size_t pos) const
+    {
+        size_t out = 0;
+	for(size_t i = mOrig.size(); i != 0; --i) {
+	    auto& x = mOrig[i-1];
+	    const size_t redpos = pos % x->size();
+            const size_t offset = x->cmeta(target+out,redpos);
+            out += offset;
+	    pos -= redpos;
+	    pos /= x->size();
+	}
+        return out;
+    }
+
     template <class EC>
     std::string DynamicRange<EC>::stringMeta(size_t pos) const
     {

src/include/ranges/dynamic_range.h

@@ -169,7 +169,7 @@ namespace MultiArrayTools
     //typedef SingleRange<size_t,SpaceType::DYN> DynamicRange;
 
     template <class EC>
-    class DynamicIndex : public IndexInterface<DynamicIndex<EC>,DynamicMetaT>
+    class DynamicIndex : public IndexInterface<DynamicIndex<EC>,std::vector<char>>
     {
     private:
         typedef vector<std::pair<std::shared_ptr<IndexW<EC>>,size_t>> IVecT;
@@ -177,7 +177,7 @@ namespace MultiArrayTools
         IVecT mIVec;
 
     public:
-        typedef IndexInterface<DynamicIndex<EC>,DynamicMetaT> IB;
+        typedef IndexInterface<DynamicIndex<EC>,std::vector<char>> IB;
 	typedef std::vector<char> MetaType;
 	typedef DynamicRange<EC> RangeType;
 	typedef DynamicIndex IType;
@@ -319,6 +319,8 @@ namespace MultiArrayTools
 	virtual SpaceType spaceType() const final;
         virtual DataHeader dataHeader() const final;
         
+        virtual size_t typeNum() const final;
+        virtual size_t cmeta(char* target, size_t pos) const final;
 	virtual std::string stringMeta(size_t pos) const final;
 	virtual vector<char> data() const final;
 	

src/include/ranges/multi_range.h

@@ -200,6 +200,8 @@ namespace MultiArrayTools
 	virtual SpaceType spaceType() const final;
         virtual DataHeader dataHeader() const final;
         
+        virtual size_t typeNum() const final;
+        virtual size_t cmeta(char* target, size_t pos) const final;
 	virtual std::string stringMeta(size_t pos) const final;
 	virtual vector<char> data() const final;
 	
@@ -581,12 +583,24 @@ namespace MultiArrayTools
 	return mSpace;
     }
 
+    template <class... Ranges>
+    size_t MultiRange<Ranges...>::typeNum() const
+    {
+        return 0;
+    }
+
+    template <class... Ranges>
+    size_t MultiRange<Ranges...>::cmeta(char* target, size_t pos) const
+    {
+        return RPackNum<sizeof...(Ranges)-1>::getCMeta(target,pos,mSpace);
+    }
+    
     template <class... Ranges>
     std::string MultiRange<Ranges...>::stringMeta(size_t pos) const
     {
 	auto i = begin();
 	i = pos;
-	return "[ " + RPackNum<sizeof...(Ranges)-1>::metaTupleToString(i.meta()) + " ]";
+	return "[ " + RPackNum<sizeof...(Ranges)-1>::getStringMeta(i) + " ]";
     }
 
     template <class... Ranges>

src/include/ranges/range_base.h

@@ -81,8 +81,8 @@ namespace MultiArrayTools
         std::intptr_t id() const;
 
         virtual size_t typeNum() const = 0;
-	virtual std::string stringMeta(size_t pos) const = 0;
+        virtual size_t cmeta(char* target, size_t pos) const = 0;
-        virtual const char* cmeta(size_t pos) const = 0;
+        virtual std::string stringMeta(size_t pos) const = 0;
 	virtual vector<char> data() const = 0; // usefull when writing to files, etc...
 
 	virtual SpaceType spaceType() const = 0;

src/include/ranges/range_types/classic_range.h

@@ -42,6 +42,8 @@ namespace MultiArrayTools
 	virtual SpaceType spaceType() const final;
         virtual DataHeader dataHeader() const final;
         
+        virtual size_t typeNum() const final;
+        virtual size_t cmeta(char* target, size_t pos) const final;
 	virtual std::string stringMeta(size_t pos) const final;
 	virtual vector<char> data() const final;
 	

src/include/ranges/range_types/null_range.h

@@ -46,6 +46,8 @@ namespace MultiArrayTools
 	virtual size_t size() const final;
 	virtual size_t dim() const final;
 
+        virtual size_t typeNum() const final;
+        virtual size_t cmeta(char* target, size_t pos) const final;
 	virtual std::string stringMeta(size_t pos) const final;
 	virtual vector<char> data() const final;
 

src/include/ranges/range_types/space_range.h

@@ -38,6 +38,8 @@ namespace MultiArrayTools
 	virtual size_t size() const final;
 	virtual size_t dim() const final;
 
+        virtual size_t typeNum() const final;
+        virtual size_t cmeta(char* target, size_t pos) const final;
 	virtual std::string stringMeta(size_t pos) const final;
 	virtual vector<char> data() const final;
 

src/include/ranges/range_types/spin_range.h

@@ -39,6 +39,8 @@ namespace MultiArrayTools
 	virtual size_t size() const final;
 	virtual size_t dim() const final;
 
+        virtual size_t typeNum() const final;
+        virtual size_t cmeta(char* target, size_t pos) const final;
 	virtual std::string stringMeta(size_t pos) const final;
 	virtual vector<char> data() const final;
 

src/include/ranges/rpack_num.h

@@ -340,10 +340,10 @@ namespace MultiArrayHelper
 		RPackNum<N-1>::checkIfCreated(p,a);
 	}
 
-	template <class MetaTuple>
+	template <class MIndex>
-	static inline std::string metaTupleToString(const MetaTuple& mtp)
+	static inline std::string getStringMeta(const MIndex& mi)
 	{
-	    return RPackNum<N-1>::metaTupleToString(mtp) + " , " + xToString(std::get<N>(mtp));
+	    return RPackNum<N-1>::getStringMeta(mi) + " , " + mi.template getPtr<N>()->stringMeta();
 	}
 
 	template <class... Ranges>
@@ -369,6 +369,16 @@ namespace MultiArrayHelper
 	    std::get<N>( stp ) = std::dynamic_pointer_cast<RType>( rbvec[N] );
 	    RPackNum<N-1>::setSpace(rbvec, stp);
 	}
+
+        template <class... Ranges>
+        static inline size_t getCMeta(char* target, size_t pos, const std::tuple<std::shared_ptr<Ranges>...>& stp)
+        {
+            constexpr size_t NN = sizeof...(Ranges);
+            auto& r = *std::get<NN-N-1>(stp);
+            const size_t ownPos = pos % r.size();
+            const size_t offset = r.cmeta(target,ownPos);
+            return offset + RPackNum<N-1>::getCMeta(target + offset , (pos - ownPos) / r.size(), stp);
+        }
     };
 
     
@@ -610,10 +620,10 @@ namespace MultiArrayHelper
 	    return reinterpret_cast<std::intptr_t>( std::get<0>(p).get() ) == a[0];
 	}
 
-	template <class MetaTuple>
+        template <class MIndex>
-	static inline std::string metaTupleToString(const MetaTuple& mtp)
+	static inline std::string getStringMeta(const MIndex& mi)
 	{
-	    return xToString(std::get<0>(mtp));
+	    return mi.template getPtr<0>()->stringMeta();
 	}
 
 	template <class... Ranges>
@@ -638,6 +648,15 @@ namespace MultiArrayHelper
 	    std::get<0>( stp ) = std::dynamic_pointer_cast<RType>( rbvec[0] );
 	}
 
+        template <class... Ranges>
+        static inline size_t getCMeta(char* target, size_t pos, const std::tuple<std::shared_ptr<Ranges>...>& stp)
+        {
+            constexpr size_t NN = sizeof...(Ranges);
+            auto& r = *std::get<NN-1>(stp);
+            const size_t ownPos = pos % r.size();
+            return r.cmeta(target,ownPos);
+        }
+
     };
     
     template <IndexType IT>

src/include/ranges/single_range.h

@@ -232,9 +232,9 @@ namespace MultiArrayTools
         virtual DataHeader dataHeader() const final;
 
         virtual size_t typeNum() const final;
+        virtual size_t cmeta(char* target, size_t pos) const final;
 	virtual std::string stringMeta(size_t pos) const final;
 	virtual vector<char> data() const final;
-        virtual const char* cmeta() const final;
 	
 	bool isMeta(const U& metaPos) const;
 	
@@ -371,12 +371,6 @@ namespace MultiArrayTools
 	return 1;
     }
 
-    template <typename U, SpaceType TYPE, size_t S>
-    size_t GenSingleIndex<U,TYPE,S>::typeNum() const
-    {
-        return NumTypeMap<U>::num;
-    }
-    
     template <typename U, SpaceType TYPE, size_t S>
     std::string GenSingleIndex<U,TYPE,S>::stringMeta() const
     {
@@ -390,12 +384,6 @@ namespace MultiArrayTools
 	    ( mMetaPtr, IB::mPos, mExplicitRangePtr );
     }
     
-    template <typename U, SpaceType TYPE, size_t S>
-    const char* GenSingleIndex<U,TYPE,S>::cmeta() const
-    {
-        return reinterpret_cast<const char*>(mSpace.data());
-    }
-    
     template <typename U, SpaceType TYPE, size_t S>
     const U* GenSingleIndex<U,TYPE,S>::metaPtr() const
     {
@@ -579,6 +567,21 @@ namespace MultiArrayTools
 	return TYPE;
     }
 
+    template <typename U, SpaceType TYPE, size_t S>
+    size_t GenSingleRange<U,TYPE,S>::typeNum() const
+    {
+        return NumTypeMap<U>::num;
+    }
+    
+    template <typename U, SpaceType TYPE, size_t S>
+    size_t GenSingleRange<U,TYPE,S>::cmeta(char* target, size_t pos) const
+    {
+        if(target){
+            *reinterpret_cast<U*>(target) = mSpace[pos];
+        }
+        return sizeof(U);
+    }
+
     template <typename U, SpaceType TYPE, size_t S>
     std::string GenSingleRange<U,TYPE,S>::stringMeta(size_t pos) const
     {

src/include/ranges/subrange.h

@@ -120,6 +120,8 @@ namespace MultiArrayTools
 	virtual SpaceType spaceType() const final;
         virtual DataHeader dataHeader() const final;
         
+        virtual size_t typeNum() const final;
+        virtual size_t cmeta(char* target, size_t pos) const final;
 	virtual std::string stringMeta(size_t pos) const final;
 	virtual vector<char> data() const final;
 	
@@ -401,6 +403,18 @@ namespace MultiArrayTools
         return h;
     }
 
+    template <class Range>
+    size_t SubRange<Range>::typeNum() const
+    {
+        return mFullRange->typeNum();
+    }
+
+    template <class Range>
+    size_t SubRange<Range>::cmeta(char* target, size_t pos) const
+    {
+        return mFullRange->cmeta(target, mSubSet[pos]);
+    }
+
     template <class Range>
     std::string SubRange<Range>::stringMeta(size_t pos) const
     {

src/include/ranges/value_range.h

@@ -111,6 +111,8 @@ namespace MultiArrayTools
 	virtual SpaceType spaceType() const final;
         virtual DataHeader dataHeader() const final;
         
+        virtual size_t typeNum() const = 0;
+        virtual size_t cmeta(char* target, size_t pos) const = 0;
 	virtual std::string stringMeta(size_t pos) const final;
 	virtual vector<char> data() const final;
 
@@ -348,6 +350,21 @@ namespace MultiArrayTools
 	return SpaceType::NONE;
     }
 
+    template <typename U>
+    size_t ValueRange<U>::typeNum() const
+    {
+        return NumTypeMap<U>::num;
+    }
+        
+    template <typename U>
+    size_t ValueRange<U>::cmeta(char* target, size_t pos) const
+    {
+        if(target){
+            *reinterpret_cast<U*>(target) = *mMeta;
+        }
+        return sizeof(U);
+    }
+
     template <typename U>
     std::string ValueRange<U>::stringMeta(size_t pos) const
     {

src/lib/ranges/anonymous_range.cc

@@ -93,6 +93,25 @@ namespace MultiArrayTools
 	return mEmpty;
     }
 
+    size_t AnonymousRange::typeNum() const
+    {
+        return 0;
+    }
+    
+    size_t AnonymousRange::cmeta(char* target, size_t pos) const
+    {
+        size_t out = 0;
+	for(size_t i = mOrig.size(); i != 0; --i) {
+	    auto& x = mOrig[i-1];
+	    const size_t redpos = pos % x->size();
+            const size_t offset = x->cmeta(target+out, redpos);
+            out += offset;
+	    pos -= redpos;
+	    pos /= x->size();
+	}
+        return out;
+    }
+
     std::string AnonymousRange::stringMeta(size_t pos) const
     {
 	std::string out = "[ ";

src/lib/ranges/range_types/classic_range.cc

@@ -53,6 +53,19 @@ namespace MultiArrayTools
 	return SpaceType::NONE;
     }
 
+    size_t GenSingleRange<size_t,SpaceType::NONE,-1>::typeNum() const
+    {
+        return NumTypeMap<size_t>::num;
+    }
+    
+    size_t GenSingleRange<size_t,SpaceType::NONE,-1>::cmeta(char* target, size_t pos) const
+    {
+        if(target){
+            *reinterpret_cast<size_t*>(target) = pos;
+        }
+        return sizeof(size_t);
+    }
+
     std::string GenSingleRange<size_t,SpaceType::NONE,-1>::stringMeta(size_t pos) const
     {
 	return std::to_string(get(pos));

src/lib/ranges/range_types/null_range.cc

@@ -76,6 +76,19 @@ namespace MultiArrayTools
 	return SpaceType::NUL;
     }
 
+    size_t GenSingleRange<size_t,SpaceType::NUL,0>::typeNum() const
+    {
+        return NumTypeMap<size_t>::num;
+    }
+    
+    size_t GenSingleRange<size_t,SpaceType::NUL,0>::cmeta(char* target, size_t pos) const
+    {
+        if(target){
+            *reinterpret_cast<size_t*>(target) = 0;
+        }
+        return sizeof(size_t);
+    }
+
     std::string GenSingleRange<size_t,SpaceType::NUL,0>::stringMeta(size_t pos) const
     {
 	return std::to_string(get(pos));

src/lib/ranges/range_types/space_range.cc

@@ -59,6 +59,19 @@ namespace MultiArrayTools
 	return SpaceType::PSPACE;
     }
 
+    size_t GenSingleRange<int,SpaceType::PSPACE,-1>::typeNum() const
+    {
+        return NumTypeMap<int>::num;
+    }
+    
+    size_t GenSingleRange<int,SpaceType::PSPACE,-1>::cmeta(char* target, size_t pos) const
+    {
+        if(target){
+            *reinterpret_cast<int*>(target) = get(pos);
+        }
+        return sizeof(int);
+    }
+
     std::string GenSingleRange<int,SpaceType::PSPACE,-1>::stringMeta(size_t pos) const
     {
 	return std::to_string(get(pos));

src/lib/ranges/range_types/spin_range.cc

@@ -56,6 +56,19 @@ namespace MultiArrayTools
 	return SpaceType::SPIN;
     }
 
+    size_t GenSingleRange<size_t,SpaceType::SPIN,4>::typeNum() const
+    {
+        return NumTypeMap<size_t>::num;
+    }
+    
+    size_t GenSingleRange<size_t,SpaceType::SPIN,4>::cmeta(char* target, size_t pos) const
+    {
+        if(target){
+            *reinterpret_cast<size_t*>(target) = pos;
+        }
+        return sizeof(size_t);
+    }
+
     std::string GenSingleRange<size_t,SpaceType::SPIN,4>::stringMeta(size_t pos) const
     {
 	return std::to_string(get(pos));