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The following code demonstrated the conversion of a generic Delphi type to C++.


type
   TPair<TKey,TValue> = class   // declares TPair type with two type parameters
   private
     FKey: TKey;
     FValue: TValue;
   public
     function GetKey: TKey;
     procedure SetKey(key: TKey);
     function GetValue: TValue;
     procedure SetValue(Value: TValue);
     property key: TKey Read GetKey Write SetKey;
     property Value: TValue Read GetValue Write SetValue;
   end;

 type
   TSIPair = TPair<String,Integer>; // declares instantiated type
   TSSPair = TPair<String,String>;  // declares with other data types
   TISPair = TPair<Integer,String>;
   TIIPair = TPair<Integer,Integer>;
   TSXPair = TPair<String,TXMLNode>;

implementation

function TPair<TKey,TValue>.GetValue: TValue;
 begin
   Result := FValue;
 end;

-&gt;


// declares TPair type with two type parameters
template<typename TKey, typename TValue>
class TPair : public System::TObject
{
public:
  typedef System::TObject inherited;  
private:
  TKey FKey;
  TValue FValue;
public:
  TKey GetKey() const;
  void SetKey(TKey key);
  TValue GetValue() const;
  void SetValue(TValue Value);
  /*property key : TKey read GetKey write SetKey;*/
  TKey ReadPropertykey() const { return GetKey();}
  void WritePropertykey(TKey key){SetKey(key);}
  /*property Value : TValue read GetValue write SetValue;*/
  TValue ReadPropertyValue() const { return GetValue();}
  void WritePropertyValue(TValue Value){SetValue(Value);}
  TPair() {}
};
typedef TPair<System::String, int> TSIPair; // declares instantiated type
typedef TPair<System::String, System::String> TSSPair;  // declares with other data types
typedef TPair<int, System::String> TISPair;
typedef TPair<int, int> TIIPair;
typedef TPair<System::String, TXMLNode> TSXPair;



template<typename TKey, typename TValue>
TValue TPair<TKey, TValue>::GetValue() const
{
  TValue result;
  result = FValue;
  return result;
}



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