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  1. #include <iostream>
  2.  
  3. class List
  4. {
  5. 	List *nextnode;
  6. 	int val;
  7. 	int del;
  8.  
  9. public: 
  10. 	List () : nextnode ( NULL ), val ( 0 ), del ( 0 ) {}
  11. 	List ( int v ) : nextnode ( NULL ), val ( v ), del ( 0 ) {}
  12. 	~List ();
  13. 	List* operator >> ( List* o );
  14. 	List* operator >> ( int v );
  15. 	List* operator = ( int v );
  16. 	operator int ();
  17. 	int value () const;
  18. 	List* next () const;
  19. };
  20.  
  21. int main ()
  22. {
  23. 	List obj = 1;
  24.  
  25. 	obj >> 2;
  26. 	obj >> 3;
  27.  
  28. 	for ( List *p = &obj; p; p = p->next() ) {
  29. 		std::cout << (int)*p << std::endl;
  30. 	}
  31.  
  32. 	return 0;
  33. }
  34.  
  35. List::~List ()
  36. {
  37. 	if ( del ) {
  38. 		delete nextnode;
  39. 	}
  40. }
  41.  
  42. List* List::operator >> ( List* o )
  43. {
  44. 	if ( nextnode ) {
  45. 		nextnode->operator >>( o );
  46. 	} else {
  47. 		nextnode = o;
  48. 	}
  49. 	return this;
  50. }
  51.  
  52. List* List::operator >> ( int v )
  53. {
  54. 	List *tmp = new List( v );
  55. 	tmp->del = 1;
  56. 	this->operator >> ( tmp );
  57. 	return this;
  58. }
  59.  
  60. List* List::operator = ( int v )
  61. {
  62. 	val = v;
  63. 	return this;
  64. }
  65.  
  66. List::operator int ()
  67. {
  68. 	return val;
  69. }
  70.  
  71. int List::value () const
  72. {
  73. 	return val;
  74. }
  75.  
  76. List* List::next () const
  77. {
  78. 	return nextnode;
  79. }
  80.  
Success #stdin #stdout 0s 3428KB
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https://ideone.com/tyIa9h
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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