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  1. #include <iostream>
  2. #include <vector>
  3.  
  4. using namespace std;
  5.  
  6.  
  7. class P {
  8.   private:
  9.     string nom;
  10.  
  11.   public:
  12.     P(string n) : nom(n) {
  13.  
  14.     }
  15.  
  16.     virtual string toString() const {
  17. 		return "P_" + nom;
  18. 	}
  19. };
  20.  
  21.  
  22.  
  23. class I {
  24.   public:
  25.     I(const P &p_, int a) : p(p_), amount(a) {
  26. 	}
  27.  
  28. 	string desc() const {
  29. 	   string s;
  30. 	   s += " I_";
  31. 	   // call P::toString or PC::toString() ?
  32. 	   s += p.toString();
  33.  
  34. 	   return s;
  35. 	}
  36.  
  37.   private:
  38.     const P &p;   // could be PC or P
  39.     int amount;
  40.  
  41. };
  42.  
  43.  
  44. class R {
  45.  
  46. 	private:
  47. 	  vector<I> ps;
  48. 	  string nom;
  49.  
  50. 	public:
  51. 	   R(string n) : nom(n) {
  52. 	   }
  53.  
  54. 	   void add(const P & p) {
  55. 		   I i(p, 100);
  56. 		   ps.push_back(i);
  57. 	   }
  58.  
  59. 	   string toString() const {
  60. 		   string s;
  61. 		   for (auto i : ps) {
  62. 			   s += i.desc();
  63. 		   }
  64. 		   return s;
  65. 	   }
  66.  
  67.  
  68. };
  69.  
  70.  
  71. class PC : public P {
  72.  
  73. 	private:
  74. 	  R r;
  75.  
  76.  
  77. 	public:
  78.  
  79. 	PC(string n) : P(n), r(n) {
  80. 	}
  81.  
  82. 	virtual string toString() const override {
  83. 		string s;
  84. 		s += "PC ";
  85. 		s += P::toString();
  86. 		s += r.toString();
  87.  
  88. 		return s;
  89. 	}
  90.  
  91. 	void addToR(const P & p) {
  92. 		r.add(p);
  93. 	}
  94.  
  95.  
  96. };
  97.  
  98. int main() {
  99.  
  100.   P p1("abc");
  101.   P p2("def");
  102.  
  103.   PC pc("abc_def");
  104.   pc.addToR(p1);
  105.   pc.addToR(p2);
  106.  
  107.   cout << pc.toString() << endl;
  108.  
  109.   P p3("hij");
  110.   PC pc2("hij_abc_def");
  111.   pc2.addToR(p3);
  112.   pc2.addToR(pc);
  113.  
  114.   cout << pc2.toString() << endl;
  115.  
  116.   return 0;
  117.  
  118. }
  119.  
Success #stdin #stdout 0s 15240KB
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Standard input is empty
stdout
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PC P_abc_def I_P_abc I_P_def
PC P_hij_abc_def I_P_hij I_PC P_abc_def I_P_abc I_P_def
https://ideone.com/fCNZpl
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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