add more docu for range_base / index_base code

src/include/ranges/index_base.h

@@ -21,60 +21,177 @@
 
 namespace CNORXZ
 {
+    /** ******
+	Basic index interface class template
+
+	Static polymorphism: This class defines an interface template;
+	all indices are supposed to be derived from the corresponding
+	template instance
+
+	Indices are act as iterators over parameter spaces (ranges) and/or
+	the containers (arrays) defined on them
+
+	Moreover, indices are used to define operations on the
+	corresponding parameters space
+
+	In principle, one distinguishes between lexicographic position
+	(= index position) and the memory position of the corresponding
+	meta data w.r.t. the first element
+	
+	@tparam I Index type, recurring template argument
+	@tparam MetaType data type of the meta data
+
+	@see RangeBase
+	@see RangeInterface
+     */
     template <class I, typename MetaType>
     class IndexInterface
     {
     public:
+	/** default destructor */
 	~IndexInterface() = default; 
 
+	/** explicit static cast */
 	I& THIS() { return static_cast<I&>(*this); }
+
+	/** explicit static cast (const) */
 	const I& THIS() const { return static_cast<const I&>(*this); }
 
+	/** increment lexicographic index position */
 	I& operator++() { return ++THIS(); }
+
+	/** decrement lexicographic index position */
 	I& operator--() { return --THIS();}
+
+	/** return index with lexicographic index position incremented n times
+	    @param n
+	 */
 	I operator+(Int n) const { return THIS() + n; }
+
+	/** return index with lexicographic index position decremented n times
+	    @param n
+	 */
 	I operator-(Int n) const { return THIS() - n; }
+
+	/** increment lexicographic index position n times
+	    @param n
+	 */
 	I& operator+=(Int n) { return THIS() += n; }
+
+	/** decrement lexicographic index position n times
+	    @param n
+	 */
 	I& operator-=(Int n) { return THIS() -= n; }
+
+	/** difference of lexicographic index postions
+	    @param i Index to compare with
+	*/
 	Int operator-(const IndexInterface& i) const { return lex() - i.lex(); }
 
-	SizeT pos() const; // 'memory' pos
-	SizeT lex() const { return THIS().lex(); } // lexicographic pos
-	SizeT pmax() const { return static_cast<SizeT>(THIS().pmax()); } // memory pos max
-	SizeT lmax() const { return static_cast<SizeT>(THIS().lmax()); } // lexicographic pos max
+	/** memory position */
+	SizeT pos() const;
+
+	/** lexicographic position */
+	SizeT lex() const { return THIS().lex(); }
+
+	/** maximal memory position */
+	SizeT pmax() const { return static_cast<SizeT>(THIS().pmax()); }
+
+	/** maximal lexicographic position */
+	SizeT lmax() const { return static_cast<SizeT>(THIS().lmax()); }
+
 	PtrId ptrId() const;
+
+	/** index ID */
 	decltype(auto) id() const { return THIS().id(); }
 
-	bool operator==(const IndexInterface& in) const;
-	bool operator!=(const IndexInterface& in) const;
-	bool operator<(const IndexInterface& in) const;
-	bool operator>(const IndexInterface& in) const;
-	bool operator<=(const IndexInterface& in) const;
-	bool operator>=(const IndexInterface& in) const;
+	/** check if indices are equal
+	    @param i Index to compare with
+	 */
+	bool operator==(const IndexInterface& i) const;
 
+	/** check if indices are non-equal
+	    @param i Index to compare with
+	 */
+	bool operator!=(const IndexInterface& i) const;
+
+	/** check if index is smaller than i
+	    @param i Index to compare with
+	 */
+	bool operator<(const IndexInterface& i) const;
+
+	/** check if index is greater than i
+	    @param i Index to compare with
+	 */
+	bool operator>(const IndexInterface& i) const;
+
+	/** check if index is not greater than i
+	    @param i Index to compare with
+	 */
+	bool operator<=(const IndexInterface& i) const;
+
+	/** check if index is not smaller than i
+	    @param i Index to compare with
+	 */
+	bool operator>=(const IndexInterface& i) const;
+
+	/** return meta data at current index position */
 	decltype(auto) operator*() const { return THIS().operator*(); }
 
+	/** index dimension */
 	SizeT dim() const { return THIS().dim(); }
+
+	/** pointer to the range the index is defined on */
 	decltype(auto) range() const { return THIS().range(); }
 
+	/** return the memory step size this index has w.r.t. to index of given ID
+
+	    @tparam J static index ID, size type
+	    @param id input index ID
+	 */
 	template <SizeT J>
 	decltype(auto) stepSize(const IndexId<J>& id) const { return THIS().stepSize(id); }
 
+	/** return string formatted meta data at current index position*/
 	String stringMeta() const { return THIS().stringMeta(); }
+
+	/** return meta data at current index position */
 	decltype(auto) meta() const { return THIS().meta(); }
+
+	/** set index position so that it's meta data matches input
+
+	    @param meta meta data to be matched
+	 */
 	I& at(const MetaType& meta) { return THIS().at(meta); }
+
+	/** create expression on this index
+
+	    @param _this pointer to this index
+	 */
 	decltype(auto) xpr(const Sptr<I>& _this) const { return THIS().xpr(_this); }
 
+	/** create partial range starting at this index' position and ending
+	    at the position of input index. The end position is included!
+	    @param end end index
+	 */
 	RangePtr prange(const IndexInterface& end) const { return THIS().prange(end.THIS()); }
 
+	/** recursive index format */
 	decltype(auto) deepFormat() const { return THIS().deepFormat(); }
 
+	/** create a for-loop expression
+
+	    @tparam Xpr loop internal expression
+	    @tparam F accumulating function
+	    @param xpr loop internal expression
+	    @param f accumulating function
+	 */
 	template <class Xpr, class F = NoF>
 	decltype(auto) ifor(const Xpr& xpr, F&& f) const
 	{ return THIS().ifor(xpr,std::forward<F>(f)); }
 	
     protected:
-	SizeT mPos = 0;
+	SizeT mPos = 0; /**< the memory position */
 	
     private:
 	friend I; // why not protected???!!!

src/include/ranges/range_base.h

@@ -80,7 +80,7 @@ namespace CNORXZ
 	
     };
 
-    /**
+    /** ******
 	Abstract range base class
 
 	A range defines a parameter space containers and operations are defined on.
@@ -173,6 +173,14 @@ namespace CNORXZ
 	Wptr<RangeBase> mThis; /**< weak pointer to this range */
     };
 
+    /** ******
+	Interface template for ranges
+
+	Provides begin() and end() returning indices of
+	corresponding type
+
+	@tparam Range specify the range type
+     */
     template <class Range>
     class RangeInterface : public RangeBase
     {
@@ -180,33 +188,80 @@ namespace CNORXZ
 
 	typedef RangeBase RB;
 
+	/** return index pointing to range's first element */
 	decltype(auto) begin() const;
+
+	/** return index pointing to element after range's last element */
 	decltype(auto) end() const;
+
 	virtual DIndex index(SizeT pos) const override final;
 
     protected:
+	/** default constructor */
 	RangeInterface() = default;
     };
 
+    /** ******
+	Generic range case template
+
+	Cast range of any type into range of type
+	specified by the template argument
+
+	@tparam Range specify the range type to cast into
+     */
     template <class Range>
     struct RangeCast
     {
+	/** cast the range
+	    @param r pointer to range to be casted
+	 */
 	static Sptr<Range> func(const RangePtr& r);
     };
 
+    /** wrapps RangeCast::func
+	@param r pointer to range to be casted
+	@tparam Range specify the range type to cast into
+	@see RangeCast
+     */
     template <class Range>
     Sptr<Range> rangeCast(const RangePtr r);
 
+    /** *****
+	Pack of ranges
 
+	Helper struct for the construction of
+	multi-dimensional ranges
+     */
     struct RangePack
     {
-	Vector<RangePtr> mRs;
-	operator RangePtr() const; // -> Ptr to YRange
+	Vector<RangePtr> mRs; /**< the ranges contained in the pack */
+
+	/** return YRange containig the ranges of the pack */
+	operator RangePtr() const;
     };
 
+    /** create a pack consisting of ranges a and b
+	@param a pointer to first range
+	@param b pointer to second range
+     */
     RangePack operator*(const RangePtr& a, const RangePtr& b);
+
+    /** create a pack consisting of ranges a and the ranges of b
+	@param a pointer to first range
+	@param b pack of ranges
+     */
     RangePack operator*(const RangePtr& a, const RangePack& b);
+
+    /** create a pack consisting of the ranges of a and the range b
+	@param a pack of ranges
+	@param b pointer to first range
+     */
     RangePack operator*(const RangePack& a, const RangePtr& b);
+
+    /** create a pack consisting of the ranges of a and b
+	@param a pack of ranges
+	@param b pack of ranges
+     */
     RangePack operator*(const RangePack& a, const RangePack& b);
 
     RangePtr getSub(const RangePtr& r, SizeT num);