diff --git a/src/include/base/types.h b/src/include/base/types.h
index e1cb5ea..6b110fd 100644
--- a/src/include/base/types.h
+++ b/src/include/base/types.h
@@ -164,6 +164,14 @@ namespace CNORXZ
     template <typename Meta>
     class UIndex;
 
+    // definition: ranges/prange.h
+    template <class Range>
+    class PRange;
+
+    // definition: ranges/prange.h
+    template <class Index>
+    class PIndex;
+
     // definition: ranges/crange.h
     class CRange; // classic range, trivial meta data
 
diff --git a/src/include/ranges/prange.cc.h b/src/include/ranges/prange.cc.h
index c283682..2774f0e 100644
--- a/src/include/ranges/prange.cc.h
+++ b/src/include/ranges/prange.cc.h
@@ -12,9 +12,9 @@ namespace CNORXZ
     
     template <class Index>
     PIndex<Index>::PIndex(const RangePtr& range, SizeT pos) :
-	IndexInterface<Index>(pos),
+	IndexInterface<Index,typename Index::MetaType>(pos),
 	mRangePtr(rangeCast<RangeType>(range)),
-	mIndex(mRangePtr->orig(),mRangePtr->parts()[pos])
+	mOrig(mRangePtr->orig(),mRangePtr->parts()[pos])
     {}
 	
     template <class Index>
@@ -106,7 +106,7 @@ namespace CNORXZ
     }
     
     template <class Index>
-    Sptr<RangeType> PIndex<Index>::range() const
+    Sptr<typename PIndex<Index>::RangeType> PIndex<Index>::range() const
     {
 	return mRangePtr;
     }
@@ -130,13 +130,13 @@ namespace CNORXZ
     }
     
     template <class Index>
-    const MetaT& PIndex<Index>::meta() const
+    const typename PIndex<Index>::MetaType& PIndex<Index>::meta() const
     {
 	return mOrig->meta();
     }
     
     template <class Index>
-    PIndex& PIndex<Index>::at(const MetaT& metaPos)
+    PIndex<Index>& PIndex<Index>::at(const MetaType& metaPos)
     {
 	mOrig->at(metaPos);
 	mkPos();
@@ -178,7 +178,7 @@ namespace CNORXZ
     template <class Index>
     PIndex<Index>& PIndex<Index>::operator()()
     {
-	mkPos()
+	mkPos();
 	return *this;
     }
 
@@ -201,11 +201,13 @@ namespace CNORXZ
 	IB::mPos = 0;
 	for(const auto& x: mRangePtr->parts()){
 	    if(x == opos){
-		return *this;
+		return;
 	    }
 	    ++IB::mPos;
 	}
-	CXZ_ERROR("meta position '" << metaPos << "' not part of range");
+	CXZ_ERROR("meta position '" << mOrig->meta() << "' not part of range");
     }
 
 }
+
+#endif
diff --git a/src/include/ranges/prange.h b/src/include/ranges/prange.h
index cd39093..a6e8775 100644
--- a/src/include/ranges/prange.h
+++ b/src/include/ranges/prange.h
@@ -15,7 +15,7 @@ namespace CNORXZ
     {
     public:
 
-	typedef public IndexInterface<Index,typename Index::MetaType> IB;
+	typedef IndexInterface<Index,typename Index::MetaType> IB;
 	typedef PRange<typename Index::RangeType> RangeType;
 	typedef typename Index::MetaType MetaType;
 
@@ -34,7 +34,7 @@ namespace CNORXZ
 	UPos lmax() const;
 	IndexId<0> id() const;
 	
-	const MetaT& operator*() const;
+	const MetaType& operator*() const;
 	
 	SizeT dim() const;
 	Sptr<RangeType> range() const;
@@ -43,8 +43,8 @@ namespace CNORXZ
 	UPos stepSize(const IndexId<I>& id) const;
 
 	String stringMeta() const;
-	const MetaT& meta() const;
-	PIndex& at(const MetaT& metaPos);
+	const MetaType& meta() const;
+	PIndex& at(const MetaType& metaPos);
 	decltype(auto) xpr(const Sptr<PIndex<Index>>& _this) const;
 
 	template <class I>
diff --git a/src/include/ranges/ranges.cc.h b/src/include/ranges/ranges.cc.h
index 7537d90..71e3beb 100644
--- a/src/include/ranges/ranges.cc.h
+++ b/src/include/ranges/ranges.cc.h
@@ -5,6 +5,7 @@
 #include "xindex.cc.h"
 #include "urange.cc.h"
 #include "crange.cc.h"
+#include "prange.cc.h"
 #include "dindex.cc.h"
 #include "lindex.cc.h"
 #include "index_mul.cc.h"
diff --git a/src/include/ranges/ranges.h b/src/include/ranges/ranges.h
index 380ece0..422a2a1 100644
--- a/src/include/ranges/ranges.h
+++ b/src/include/ranges/ranges.h
@@ -3,8 +3,7 @@
 #include "index_base.h"
 #include "mrange.h"
 #include "crange.h"
-//#include "subrange.h"
-//#include "value_range.h"
+#include "prange.h"
 #include "xindex.h"
 #include "yrange.h"
 #include "dindex.h"