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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class ChinkoException
  5. {
  6. public:
  7. 	operator char * () const { return "MuriPo!"; }
  8. };
  9.  
  10. template <class T>
  11. class Chinko
  12. {
  13. private:
  14. 	T* pointer = NULL;
  15. 	long *counter = NULL;
  16. public:
  17. 	Chinko() {}
  18. 	Chinko(T* t) {
  19. 		pointer = t;
  20. 		counter = new long(1);
  21. 		cout << "Erection!" << endl;
  22. 	}
  23. 	Chinko(const Chinko& chinko) {
  24. 		pointer = chinko.pointer;
  25. 		counter = chinko.counter;
  26. 		(*counter)++;
  27. 	}
  28. 	~Chinko() { reset(); }
  29. 	T& operator * () const {
  30. 		if (pointer == NULL) throw ChinkoException();
  31. 		return *(pointer);
  32. 	}
  33. 	operator bool () const { return (counter != NULL); }
  34. 	T* operator -> () const { return pointer; }
  35. 	T* get() const { return pointer; }
  36. 	void swap(Chinko& chinko) {
  37. 		long *cnt = counter;
  38. 		T* t = pointer;
  39. 		pointer = chinko.pointer;
  40. 		counter = chinko.counter;
  41. 		chinko.counter = cnt;
  42. 		chinko.pointer = t;
  43. 	}
  44. 	void reset() {
  45. 		if (counter == NULL) return;
  46. 		(*counter)--;
  47. 		if (*counter == 0) {
  48. 			delete counter;
  49. 			if (pointer != NULL) delete pointer;
  50. 			cout << "Impotence..." << endl;
  51. 		}
  52. 		counter = NULL;
  53. 		pointer = NULL;
  54. 	}
  55. 	void reset(T* t) {
  56. 		reset();
  57. 		pointer = t;
  58. 		counter = new long(1);
  59. 	}
  60. 	long use_count() const {
  61. 		if (counter == NULL) return 0;
  62. 		return *counter;
  63. 	}
  64. 	bool unique() const {
  65. 		if (counter == NULL) return false;
  66. 		return (*counter == 1);
  67. 	}
  68.  
  69. };
  70.  
  71. class Value
  72. {
  73. private:
  74. 	int value;
  75. public:
  76. 	Value(int v) : value(v) {}
  77. 	~Value() { cout << "Oh! God!" << endl; }
  78. 	int getValue() const { return value; }
  79. 	void setValue(int v) { value = v; }
  80. 	operator int () const { return value; }
  81. };
  82.  
  83. int main() {
  84. 	cout << "start" << endl;
  85. 	try {
  86. 		{
  87. 			Chinko<int> chinko(new int);
  88. 			cout << "chinko: " << *chinko << endl;
  89. 			cout << "unique: " << chinko.unique() << endl;
  90. 			cout << "count: " << chinko.use_count() << endl;
  91. 			Chinko<int> bokki = chinko;
  92. 			cout << "bokki: " << *bokki << endl;
  93. 			*chinko = 100;
  94. 			cout << "chinko: " << *chinko << endl;
  95. 			cout << "bokki: " << *bokki << endl;
  96. 			cout << "unique: " << chinko.unique() << endl;
  97. 			cout << "count: " << chinko.use_count() << endl;
  98. 			Chinko<int> shasei = bokki;
  99. 			cout << "shasei: " << *shasei << endl;
  100. 			cout << "unique: " << chinko.unique() << endl;
  101. 			cout << "count: " << chinko.use_count() << endl;
  102. 			bokki.reset();
  103. 			cout << "unique: " << chinko.unique() << endl;
  104. 			cout << "count: " << chinko.use_count() << endl;
  105. 		}
  106. 		{
  107. 			Chinko<Value> val(new Value(777));
  108. 			cout << val->getValue() << endl;
  109. 			val->setValue(999);
  110. 			cout << *val << endl;
  111. 			val.reset(new Value(1111));
  112. 			cout << *val << endl;
  113. 		}
  114.  
  115. 	} catch (ChinkoException& ex) {
  116. 		cout << ex << endl;
  117. 	}
  118. 	cout << "finish" << endl;
  119. 	return 0;
  120. }
Success #stdin #stdout 0s 3476KB
comments (?)
stdin 
Standard input is empty
stdout 
start
Erection!
chinko: 0
unique: 1
count: 1
bokki: 0
chinko: 100
bokki: 100
unique: 0
count: 2
shasei: 100
unique: 0
count: 3
unique: 0
count: 2
Impotence...
Erection!
777
999
Oh! God!
Impotence...
1111
Oh! God!
Impotence...
finish
https://ideone.com/NutDyI
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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