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cos-cpp-sdk/third_party/include/Poco/Dynamic/Pair.h

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+//
+// Pair.h
+//
+// Library: Foundation
+// Package: Dynamic
+// Module:  Pair
+//
+// Definition of the Pair class.
+//
+// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef Foundation_Pair_INCLUDED
+#define Foundation_Pair_INCLUDED
+
+
+#include "Poco/Foundation.h"
+#include "Poco/Dynamic/Var.h"
+#include "Poco/Dynamic/VarHolder.h"
+#include <utility>
+
+
+namespace Poco {
+namespace Dynamic {
+
+
+template <typename K>
+class Pair
+	/// Pair allows to define a pair of values.
+{
+public:
+	typedef typename std::pair<K, Var> Data;
+
+	Pair(): _data()
+		/// Creates an empty Pair
+	{
+	}
+
+	Pair(const Pair& other): _data(other._data)
+		/// Creates the Pair from another pair.
+	{
+	}
+
+	Pair(const Data& val): _data(val)
+		/// Creates the Pair from the given value.
+	{
+	}
+
+	template <typename T>
+	Pair(const std::pair<K, T>& val): _data(std::make_pair(val.first, val.second))
+		/// Creates Pair form standard pair.
+	{
+	}
+
+	template <typename T>
+	Pair(const K& first, const T& second): _data(std::make_pair(first, second))
+		/// Creates pair from two values.
+	{
+	}
+
+	virtual ~Pair()
+		/// Destroys the Pair.
+	{
+	}
+
+	Pair& swap(Pair& other)
+		/// Swaps the content of the two Pairs.
+	{
+		std::swap(_data, other._data);
+		return *this;
+	}
+
+	Pair& operator = (const Pair& other)
+		/// Copy constructs Pair from another pair.
+	{
+		Pair(other).swap(*this);
+		return *this;
+	}
+
+	inline const K& first() const
+		/// Returns the first member of the pair.
+	{
+		return _data.first;
+	}
+
+	inline const Var& second() const
+		/// Returns the second member of the pair.
+	{
+		return _data.second;
+	}
+
+	std::string toString()
+	{
+		std::string str;
+		Var(*this).convert<std::string>(str);
+		return str;
+	}
+
+private:
+	Data _data;
+};
+
+
+template <>
+class VarHolderImpl<Pair<std::string> >: public VarHolder
+{
+public:
+	VarHolderImpl(const Pair<std::string>& val): _val(val)
+	{
+	}
+
+	~VarHolderImpl()
+	{
+	}
+	
+	const std::type_info& type() const
+	{
+		return typeid(Pair<std::string>);
+	}
+
+	void convert(Int8& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to Int8");
+	}
+
+	void convert(Int16& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to Int16");
+	}
+	
+	void convert(Int32& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to Int32");
+	}
+
+	void convert(Int64& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to Int64");
+	}
+
+	void convert(UInt8& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to UInt8");
+	}
+
+	void convert(UInt16& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to UInt16");
+	}
+	
+	void convert(UInt32& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to UInt32");
+	}
+
+	void convert(UInt64& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to UInt64");
+	}
+
+	void convert(bool& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to bool");
+	}
+
+	void convert(float& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to float");
+	}
+
+	void convert(double& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to double");
+	}
+
+	void convert(char& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to char");
+	}
+
+	void convert(std::string& val) const
+	{
+		// Serialize in JSON format: equals an object
+		// JSON format definition: { string ':' value } string:value pair n-times, sep. by ','
+		val.append("{ ");
+		Var key(_val.first());
+		Impl::appendJSONKey(val, key);
+		val.append(" : ");
+		Impl::appendJSONValue(val, _val.second());
+		val.append(" }");	
+	}
+
+	void convert(Poco::DateTime&) const
+	{
+		throw BadCastException("Pair -> Poco::DateTime");
+	}
+
+	void convert(Poco::LocalDateTime&) const
+	{
+		throw BadCastException("Pair -> Poco::LocalDateTime");
+	}
+
+	void convert(Poco::Timestamp&) const
+	{
+		throw BadCastException("Pair -> Poco::Timestamp");
+	}
+
+	VarHolder* clone(Placeholder<VarHolder>* pVarHolder = 0) const
+	{
+		return cloneHolder(pVarHolder, _val);
+	}
+	
+	const Pair<std::string>& value() const
+	{
+		return _val;
+	}
+
+	bool isArray() const
+	{
+		return false;
+	}
+
+	bool isStruct() const
+	{
+		return false;
+	}
+
+	bool isInteger() const
+	{
+		return false;
+	}
+
+	bool isSigned() const
+	{
+		return false;
+	}
+
+	bool isNumeric() const
+	{
+		return false;
+	}
+
+	bool isString() const
+	{
+		return false;
+	}
+
+private:
+	Pair<std::string> _val;
+};
+
+
+template <>
+class VarHolderImpl<Pair<int> >: public VarHolder
+{
+public:
+	VarHolderImpl(const Pair<int>& val): _val(val)
+	{
+	}
+
+	~VarHolderImpl()
+	{
+	}
+	
+	const std::type_info& type() const
+	{
+		return typeid(Pair<int>);
+	}
+
+	void convert(Int8& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to Int8");
+	}
+
+	void convert(Int16& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to Int16");
+	}
+	
+	void convert(Int32& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to Int32");
+	}
+
+	void convert(Int64& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to Int64");
+	}
+
+	void convert(UInt8& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to UInt8");
+	}
+
+	void convert(UInt16& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to UInt16");
+	}
+	
+	void convert(UInt32& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to UInt32");
+	}
+
+	void convert(UInt64& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to UInt64");
+	}
+
+	void convert(bool& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to bool");
+	}
+
+	void convert(float& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to float");
+	}
+
+	void convert(double& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to double");
+	}
+
+	void convert(char& val) const
+	{
+		throw BadCastException("Cannot cast Pair type to char");
+	}
+
+	void convert(std::string& val) const
+	{
+		// Serialize in JSON format: equals an object
+		// JSON format definition: { string ':' value } string:value pair n-times, sep. by ','
+		val.append("{ ");
+		Var key(_val.first());
+		Impl::appendJSONKey(val, key);
+		val.append(" : ");
+		Impl::appendJSONValue(val, _val.second());
+		val.append(" }");	
+	}
+
+	void convert(Poco::DateTime&) const
+	{
+		throw BadCastException("Pair -> Poco::DateTime");
+	}
+
+	void convert(Poco::LocalDateTime&) const
+	{
+		throw BadCastException("Pair -> Poco::LocalDateTime");
+	}
+
+	void convert(Poco::Timestamp&) const
+	{
+		throw BadCastException("Pair -> Poco::Timestamp");
+	}
+
+	VarHolder* clone(Placeholder<VarHolder>* pVarHolder = 0) const
+	{
+		return cloneHolder(pVarHolder, _val);
+	}
+	
+	const Pair<int>& value() const
+	{
+		return _val;
+	}
+
+	bool isArray() const
+	{
+		return false;
+	}
+
+	bool isStruct() const
+	{
+		return false;
+	}
+
+	bool isInteger() const
+	{
+		return false;
+	}
+
+	bool isSigned() const
+	{
+		return false;
+	}
+
+	bool isNumeric() const
+	{
+		return false;
+	}
+
+	bool isString() const
+	{
+		return false;
+	}
+
+private:
+	Pair<int> _val;
+};
+
+
+} // namespace Dynamic
+
+
+} // namespace Poco
+
+
+#endif // Foundation_Pair_INCLUDED

cos-cpp-sdk/third_party/include/Poco/Dynamic/Struct.h

@@ -0,0 +1,567 @@
+//
+// Struct.h
+//
+// Library: Foundation
+// Package: Dynamic
+// Module:  Struct
+//
+// Definition of the Struct class.
+//
+// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef Foundation_Struct_INCLUDED
+#define Foundation_Struct_INCLUDED
+
+
+#include "Poco/Foundation.h"
+#include "Poco/Dynamic/Var.h"
+#include "Poco/Dynamic/VarHolder.h"
+#include "Poco/SharedPtr.h"
+#include <map>
+#include <set>
+
+
+namespace Poco {
+namespace Dynamic {
+
+
+template <typename K>
+class Struct
+	/// Struct allows to define a named collection of Var objects.
+{
+public:
+	typedef typename std::map<K, Var> Data;
+	typedef typename std::set<K> NameSet;
+	typedef typename Data::iterator Iterator;
+	typedef typename Data::const_iterator ConstIterator;
+	typedef typename Struct<K>::Data::value_type ValueType;
+	typedef typename Struct<K>::Data::size_type SizeType;
+	typedef typename std::pair<typename Struct<K>::Iterator, bool> InsRetVal;
+	typedef typename Poco::SharedPtr<Struct<K> > Ptr;
+
+	Struct(): _data()
+		/// Creates an empty Struct
+	{
+	}
+
+	Struct(const Data& val): _data(val)
+		/// Creates the Struct from the given value.
+	{
+	}
+
+	template <typename T>
+	Struct(const std::map<K, T>& val)
+	{
+		typedef typename std::map<K, T>::const_iterator MapConstIterator;
+
+		MapConstIterator it = val.begin();
+		MapConstIterator end = val.end();
+		for (; it != end; ++it) _data.insert(ValueType(it->first, Var(it->second)));
+	}
+
+	virtual ~Struct()
+		/// Destroys the Struct.
+	{
+	}
+
+	inline Var& operator [] (const K& name)
+		/// Returns the Var with the given name, creates an entry if not found.
+	{
+		return _data[name];
+	}
+
+	const Var& operator [] (const K& name) const
+		/// Returns the Var with the given name, throws a
+		/// NotFoundException if the data member is not found.
+	{
+		ConstIterator it = find(name);
+		if (it == end()) throw NotFoundException(name);
+		return it->second;
+	}
+
+	inline bool contains(const K& name) const
+		/// Returns true if the Struct contains a member with the given name
+	{
+		return find(name) != end();
+	}
+
+	inline Iterator find(const K& name)
+		/// Returns an iterator, pointing to the <name,Var> pair containing
+		/// the element, or it returns end() if the member was not found
+	{
+		return _data.find(name);
+	}
+
+	inline ConstIterator find(const K& name) const
+		/// Returns a const iterator, pointing to the <name,Var> pair containing
+		/// the element, or it returns end() if the member was not found
+	{
+		return _data.find(name);
+	}
+
+	inline Iterator end()
+		/// Returns the end iterator for the Struct
+	{
+		return _data.end();
+	}
+
+	inline ConstIterator end() const
+		/// Returns the end const iterator for the Struct
+	{
+		return _data.end();
+	}
+
+	inline Iterator begin()
+		/// Returns the begin iterator for the Struct
+	{
+		return _data.begin();
+	}
+
+	inline ConstIterator begin() const
+		/// Returns the begin const iterator for the Struct
+	{
+		return _data.begin();
+	}
+
+	template <typename T>
+	inline InsRetVal insert(const K& key, const T& value)
+		/// Inserts a <name, Var> pair into the Struct,
+		/// returns a pair containing the iterator and a boolean which
+		/// indicates success or not (is true, when insert succeeded, false,
+		/// when already another element was present, in this case Iterator
+		/// points to that other element)
+	{
+		// fix: SunPro C++ is silly ...
+		ValueType valueType(key, value);
+		return insert(valueType);
+	}
+
+	inline InsRetVal insert(const ValueType& aPair)
+		/// Inserts a <name, Var> pair into the Struct,
+		/// returns a pair containing the iterator and a boolean which
+		/// indicates success or not (is true, when insert succeeded, false,
+		/// when already another element was present, in this case Iterator
+		/// points to that other element)
+	{
+		return _data.insert(aPair);
+	}
+
+	inline SizeType erase(const K& key)
+		/// Erases the element if found, returns number of elements deleted
+	{
+		return _data.erase(key);
+	}
+
+	inline void erase(Iterator& it)
+		/// Erases the element at the given position
+	{
+		_data.erase(it);
+	}
+
+	inline bool empty() const
+		/// Returns true if the Struct doesn't contain any members
+	{
+		return _data.empty();
+	}
+
+	inline void clear()
+		/// Clears the Struct contents
+	{
+		_data.clear();
+	}
+
+	SizeType size() const
+		/// Returns the number of members the Struct contains
+	{
+		return _data.size();
+	}
+
+	inline NameSet members() const
+		/// Returns a sorted collection containing all member names
+	{
+		NameSet keys;
+		ConstIterator it = begin();
+		ConstIterator itEnd = end();
+		for (; it != itEnd; ++it) keys.insert(it->first);
+		return keys;
+	}
+
+	std::string toString()
+	{
+		std::string str;
+		Var(*this).convert<std::string>(str);
+		return str;
+	}
+
+private:
+	Data _data;
+};
+
+
+template <>
+class VarHolderImpl<Struct<std::string> >: public VarHolder
+{
+public:
+	VarHolderImpl(const Struct<std::string>& val): _val(val)
+	{
+	}
+
+	~VarHolderImpl()
+	{
+	}
+	
+	const std::type_info& type() const
+	{
+		return typeid(Struct<std::string>);
+	}
+
+	void convert(Int8&) const
+	{
+		throw BadCastException("Cannot cast Struct type to Int8");
+	}
+
+	void convert(Int16&) const
+	{
+		throw BadCastException("Cannot cast Struct type to Int16");
+	}
+	
+	void convert(Int32&) const
+	{
+		throw BadCastException("Cannot cast Struct type to Int32");
+	}
+
+	void convert(Int64&) const
+	{
+		throw BadCastException("Cannot cast Struct type to Int64");
+	}
+
+	void convert(UInt8&) const
+	{
+		throw BadCastException("Cannot cast Struct type to UInt8");
+	}
+
+	void convert(UInt16&) const
+	{
+		throw BadCastException("Cannot cast Struct type to UInt16");
+	}
+	
+	void convert(UInt32&) const
+	{
+		throw BadCastException("Cannot cast Struct type to UInt32");
+	}
+
+	void convert(UInt64&) const
+	{
+		throw BadCastException("Cannot cast Struct type to UInt64");
+	}
+
+	void convert(bool&) const
+	{
+		throw BadCastException("Cannot cast Struct type to bool");
+	}
+
+	void convert(float&) const
+	{
+		throw BadCastException("Cannot cast Struct type to float");
+	}
+
+	void convert(double&) const
+	{
+		throw BadCastException("Cannot cast Struct type to double");
+	}
+
+	void convert(char&) const
+	{
+		throw BadCastException("Cannot cast Struct type to char");
+	}
+
+	void convert(std::string& val) const
+	{
+		val.append("{ ");
+		Struct<std::string>::ConstIterator it = _val.begin();
+		Struct<std::string>::ConstIterator itEnd = _val.end();
+		if (!_val.empty())
+		{
+			Var key(it->first);
+			Impl::appendJSONKey(val, key);
+			val.append(" : ");
+			Impl::appendJSONValue(val, it->second);
+			++it;
+		}
+		for (; it != itEnd; ++it)
+		{
+			val.append(", ");
+			Var key(it->first);
+			Impl::appendJSONKey(val, key);
+			val.append(" : ");
+			Impl::appendJSONValue(val, it->second);
+		}
+		val.append(" }");
+	}
+
+	void convert(Poco::DateTime&) const
+	{
+		throw BadCastException("Struct -> Poco::DateTime");
+	}
+
+	void convert(Poco::LocalDateTime&) const
+	{
+		throw BadCastException("Struct -> Poco::LocalDateTime");
+	}
+
+	void convert(Poco::Timestamp&) const
+	{
+		throw BadCastException("Struct -> Poco::Timestamp");
+	}
+
+	VarHolder* clone(Placeholder<VarHolder>* pVarHolder = 0) const
+	{
+		return cloneHolder(pVarHolder, _val);
+	}
+	
+	const Struct<std::string>& value() const
+	{
+		return _val;
+	}
+
+	bool isArray() const
+	{
+		return false;
+	}
+
+	bool isStruct() const
+	{
+		return true;
+	}
+
+	bool isInteger() const
+	{
+		return false;
+	}
+
+	bool isSigned() const
+	{
+		return false;
+	}
+
+	bool isNumeric() const
+	{
+		return false;
+	}
+
+	bool isString() const
+	{
+		return false;
+	}
+	
+	std::size_t size() const
+	{
+		return _val.size();
+	}
+
+	Var& operator [] (const std::string& name)
+	{
+		return _val[name];
+	}
+
+	const Var& operator [] (const std::string& name) const
+	{
+		return _val[name];
+	}
+
+private:
+	Struct<std::string> _val;
+};
+
+
+template <>
+class VarHolderImpl<Struct<int> >: public VarHolder
+{
+public:
+	VarHolderImpl(const Struct<int>& val): _val(val)
+	{
+	}
+
+	~VarHolderImpl()
+	{
+	}
+	
+	const std::type_info& type() const
+	{
+		return typeid(Struct<int>);
+	}
+
+	void convert(Int8&) const
+	{
+		throw BadCastException("Cannot cast Struct type to Int8");
+	}
+
+	void convert(Int16&) const
+	{
+		throw BadCastException("Cannot cast Struct type to Int16");
+	}
+	
+	void convert(Int32&) const
+	{
+		throw BadCastException("Cannot cast Struct type to Int32");
+	}
+
+	void convert(Int64&) const
+	{
+		throw BadCastException("Cannot cast Struct type to Int64");
+	}
+
+	void convert(UInt8&) const
+	{
+		throw BadCastException("Cannot cast Struct type to UInt8");
+	}
+
+	void convert(UInt16&) const
+	{
+		throw BadCastException("Cannot cast Struct type to UInt16");
+	}
+	
+	void convert(UInt32&) const
+	{
+		throw BadCastException("Cannot cast Struct type to UInt32");
+	}
+
+	void convert(UInt64&) const
+	{
+		throw BadCastException("Cannot cast Struct type to UInt64");
+	}
+
+	void convert(bool&) const
+	{
+		throw BadCastException("Cannot cast Struct type to bool");
+	}
+
+	void convert(float&) const
+	{
+		throw BadCastException("Cannot cast Struct type to float");
+	}
+
+	void convert(double&) const
+	{
+		throw BadCastException("Cannot cast Struct type to double");
+	}
+
+	void convert(char&) const
+	{
+		throw BadCastException("Cannot cast Struct type to char");
+	}
+
+	void convert(std::string& val) const
+	{
+		val.append("{ ");
+		Struct<int>::ConstIterator it = _val.begin();
+		Struct<int>::ConstIterator itEnd = _val.end();
+		if (!_val.empty())
+		{
+			Var key(it->first);
+			Impl::appendJSONKey(val, key);
+			val.append(" : ");
+			Impl::appendJSONValue(val, it->second);
+			++it;
+		}
+		for (; it != itEnd; ++it)
+		{
+			val.append(", ");
+			Var key(it->first);
+			Impl::appendJSONKey(val, key);
+			val.append(" : ");
+			Impl::appendJSONValue(val, it->second);
+		}
+		val.append(" }");	
+	}
+
+	void convert(Poco::DateTime&) const
+	{
+		throw BadCastException("Struct -> Poco::DateTime");
+	}
+
+	void convert(Poco::LocalDateTime&) const
+	{
+		throw BadCastException("Struct -> Poco::LocalDateTime");
+	}
+
+	void convert(Poco::Timestamp&) const
+	{
+		throw BadCastException("Struct -> Poco::Timestamp");
+	}
+
+	VarHolder* clone(Placeholder<VarHolder>* pVarHolder = 0) const
+	{
+		return cloneHolder(pVarHolder, _val);
+	}
+	
+	const Struct<int>& value() const
+	{
+		return _val;
+	}
+
+	bool isArray() const
+	{
+		return false;
+	}
+
+	bool isStruct() const
+	{
+		return true;
+	}
+
+	bool isInteger() const
+	{
+		return false;
+	}
+
+	bool isSigned() const
+	{
+		return false;
+	}
+
+	bool isNumeric() const
+	{
+		return false;
+	}
+
+	bool isString() const
+	{
+		return false;
+	}
+
+	std::size_t size() const
+	{
+		return _val.size();
+	}
+
+	Var& operator [] (int name)
+	{
+		return _val[name];
+	}
+
+	const Var& operator [] (int name) const
+	{
+		return _val[name];
+	}
+
+private:
+	Struct<int> _val;
+};
+
+
+} // namespace Dynamic
+
+
+typedef Dynamic::Struct<std::string> DynamicStruct;
+
+
+} // namespace Poco
+
+
+#endif // Foundation_Struct_INCLUDED

cos-cpp-sdk/third_party/include/Poco/Dynamic/VarIterator.h

@@ -0,0 +1,150 @@
+//
+// VarIterator.h
+//
+// Library: Foundation
+// Package: Dynamic
+// Module:  VarIterator
+//
+// Definition of the VarIterator class.
+//
+// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef Foundation_VarIterator_INCLUDED
+#define Foundation_VarIterator_INCLUDED
+
+
+#include "Poco/Exception.h"
+#include <iterator>
+#include <algorithm>
+
+
+namespace Poco {
+namespace Dynamic {
+
+
+class Var;
+
+
+class Foundation_API VarIterator
+	/// VarIterator class.
+{
+public:
+	typedef std::bidirectional_iterator_tag iterator_category;
+	typedef Var                             value_type;
+	typedef std::ptrdiff_t                  difference_type;
+	typedef Var*                            pointer;
+	typedef Var&                            reference;
+
+	static const std::size_t POSITION_END;
+		/// End position indicator.
+
+	VarIterator(Var* pVar, bool positionEnd);
+		/// Creates the VarIterator and positions it at the end of
+		/// the recordset if positionEnd is true. Otherwise, it is
+		/// positioned at the beginning.
+
+	VarIterator(const VarIterator& other);
+		/// Creates a copy of other VarIterator.
+
+	~VarIterator();
+		/// Destroys the VarIterator.
+
+	VarIterator& operator = (const VarIterator& other);
+		/// Assigns the other VarIterator.
+
+	bool operator == (const VarIterator& other) const;
+		/// Equality operator.
+
+	bool operator != (const VarIterator& other) const;
+		/// Inequality operator.
+
+	Var& operator * () const;
+		/// Returns value at the current position.
+
+	Var* operator -> () const;
+		/// Returns pointer to the value at current position.
+
+	const VarIterator& operator ++ () const;
+		/// Advances by one position and returns current position.
+
+	VarIterator operator ++ (int) const;
+		/// Advances by one position and returns copy of the iterator with 
+		/// previous current position.
+
+	const VarIterator& operator -- () const;
+		/// Goes back by one position and returns copy of the iterator with 
+		/// previous current position.
+
+	VarIterator operator -- (int) const;
+		/// Goes back by one position and returns previous current position.
+
+	VarIterator operator + (std::size_t diff) const;
+		/// Returns a copy the VarIterator advanced by diff positions.
+
+	VarIterator operator - (std::size_t diff) const;
+		/// Returns a copy the VarIterator backed by diff positions.
+		/// Throws RangeException if diff is larger than current position.
+
+	void swap(VarIterator& other);
+		/// Swaps the VarIterator with another one.
+
+private:
+	VarIterator();
+
+	void increment() const;
+		/// Increments the iterator position by one. 
+		/// Throws RangeException if position is out of range.
+
+	void decrement() const;
+		/// Decrements the iterator position by one. 
+		/// Throws RangeException if position is out of range.
+
+	void setPosition(std::size_t pos) const;
+		/// Sets the iterator position. 
+		/// Throws RangeException if position is out of range.
+
+	Var*                _pVar;
+	mutable std::size_t _position;
+
+	friend class Var;
+};
+
+
+///
+/// inlines
+///
+
+
+inline bool VarIterator::operator == (const VarIterator& other) const
+{
+	return _pVar == other._pVar && _position == other._position;
+}
+
+
+inline bool VarIterator::operator != (const VarIterator& other) const
+{
+	return _pVar != other._pVar || _position != other._position;
+}
+
+
+} } // namespace Poco::Dynamic
+
+
+namespace std
+{
+	template<>
+	inline void swap<Poco::Dynamic::VarIterator>(Poco::Dynamic::VarIterator& s1, 
+		Poco::Dynamic::VarIterator& s2)
+		/// Full template specialization of std:::swap for VarIterator
+	{
+		s1.swap(s2);
+	}
+}
+
+
+#endif // Foundation_VarIterator_INCLUDED