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  1. #include <iostream>
  2. #include <string>
  3. #include <cstdlib>
  4. #include <cstdio>
  5.  
  6. enum Types  { NONE = -1 , INT , FLOAT , STRING };
  7.  
  8. class Value{
  9.     protected:
  10.     Types __type;
  11.     public:
  12.     Types __datatype__(){
  13. 		return (this->__type);
  14. 	}
  15. 	virtual const void * __getData__() = 0;
  16. };
  17.  
  18. class INTEGER : public Value
  19. {
  20.     long int payload;
  21.  
  22.     public:
  23.     INTEGER(int value=0):Value(){
  24.         this->__type = INT;
  25.         this->payload = value;
  26.     }
  27.  
  28.     int cInt(){
  29.         return this->payload;
  30.     }
  31.  
  32.     virtual const void * __getData__(){
  33.         return ( void * ) payload;
  34.     }
  35.  
  36.     void operator= ( long int &val ){
  37.         this->payload  = val;
  38.     }
  39.  
  40.     friend std::ostream& operator<< ( std::ostream& os, INTEGER const& v ){
  41.         os<<v.payload;
  42.         return os;
  43.     }
  44. };
  45.  
  46. int main()
  47. {
  48. 	INTEGER i1(2);
  49.     std::cout<<i1;
  50. }
  51.  
Success #stdin #stdout 0s 2852KB
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https://ideone.com/1EdjDq
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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