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  1. #include <iostream>
  2.  
  3. //running only vc.
  4. //cant compile gcc on ideon.
  5.  
  6. template<class T ,class C,const T&(C::*Get0)()>
  7. class Getter{
  8. public:
  9.  
  10. 	Getter(C* c):ThG(c){}
  11. 	//Getter() = delete;
  12. 	Getter(const Getter&) = delete;	
  13.  
  14. 	operator const T&() {
  15. 		return (ThG->*Get0)();
  16. 	}
  17.  
  18. 	const T& Get() const {
  19. 		return (ThG->*Get0)();
  20. 	}
  21.  
  22. protected:
  23. 	C *ThG = nullptr;
  24. };
  25. template<class T ,class C,void (C::*Set0)(const T&)>
  26. class Setter{
  27. public:
  28.  
  29. 	Setter(C* c):ThS(c){}
  30. 	//Setter() = delete;
  31. 	Setter(const Setter&) = delete;	
  32.  
  33. 	Setter& operator =(const Setter& In) {
  34. 		(ThS->*Set0)(In);
  35. 		return In;
  36. 	}
  37. 	const T& operator =(const T& In) {
  38. 		(ThS->*Set0)(In);
  39. 		return In;
  40. 	}
  41. 	void Set(const T& In) const {
  42. 		(ThS->*Set0)(In);
  43. 	}
  44.  
  45. protected:
  46. 	C *ThS = nullptr;
  47. };
  48.  
  49. template<class T, class C,const T& (C::*Get)(), void (C::*Set)(const T&) >
  50. class Property : public Getter<T,C,Get>,Setter<T,C,Set> {
  51. public:
  52. 	Property(C* Th) :Getter<T,C,Get>(Th), Setter<T,C,Set>(Th) {}//gcc
  53. 	//Property(C* Th) :Getter(Th), Setter(Th) {}//vc
  54. 	Property(const Property&) = delete;
  55. 	Property() = delete;
  56. 	const Property& operator =(const Property& In) {
  57. 		this->Set(In.Get());
  58. 		return In;
  59. 	}	
  60. 	const T& operator =(const T& In) {
  61. 		this->Set(In);
  62. 		return In;
  63. 	}
  64. };
  65. template<class T>
  66. class Test {
  67. public:
  68.  
  69. 	typedef T Type;
  70.  
  71. 	Test():G(this),S(this),P(this){}
  72.  
  73. 	bool Show() {
  74. 		std::cout << N__ << std::endl;
  75. 		return true;
  76. 	}
  77.  
  78. protected:
  79. 	const T& TheGetter() {
  80. 		return N__;
  81. 	}
  82.  
  83. 	void TheSetter(const T& N_) {
  84. 		N__ = N_;
  85. 	}
  86.  
  87. protected:
  88. 	T N__ = 0;
  89. public:
  90. 	Property<T,Test<T>,&Test<T>::TheGetter,&Test<T>::TheSetter> P;
  91. 	Getter< T, Test<T>, &Test<T>::TheGetter> G;
  92. 	Setter < T, Test, &Test::TheSetter> S;
  93. };
  94.  
  95. int main() {
  96. 	Test<int> T;
  97. 	T.Show();
  98. 	T.S = 100;
  99. 	int X = T.P;
  100. 	int Y = T.G;
  101.  
  102.  
  103. 	std::cout << Y << std::endl;
  104.  
  105. 	T.P = 1000;
  106. 	T.P = T.P;
  107.  
  108. 	T.Show();
  109.  
  110. 	return 0;
  111. }
Success #stdin #stdout 0s 16064KB
comments (?)
stdin 
Standard input is empty
stdout 
0
100
1000
https://ideone.com/mqTzb8
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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