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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class GO{//game object
  5. 	public:
  6. 	static const int numRelation=10;
  7.     GO* left[numRelation];	
  8.     GO* right[numRelation];
  9.     public: GO(){
  10.         for(int n=0;n<numRelation;n++){
  11.             left[n]=nullptr;
  12.             right[n]=nullptr;
  13.         }
  14.     }
  15. };
  16. class DB{//database
  17. 	int userIndex=-42;
  18. 	public: DB(){};
  19. 	public: DB(int us){userIndex=us;}
  20. 	public: GO* getLeft(GO* g){return g->left[userIndex];}
  21. 	public: void createRelation(GO* g1,GO* g2){
  22. 	    g2->left[userIndex]=g1;
  23. 	    g1->right[userIndex]=g2;
  24. 	}
  25. };
  26. class DBGenerator{//quite singleton
  27. 	int indexCounter=0;
  28. 	public: DB generate(){return DB(indexCounter++);}
  29. };
  30. //---^ library ^---
  31.  
  32. //---v user v----
  33. class CageManager{
  34.  
  35.     DB dbHenFood; 	
  36.     DB dbHenCage;
  37.     public: CageManager(DBGenerator* gen){
  38.     	dbHenFood=gen->generate();
  39.     	dbHenCage=gen->generate();
  40.     }
  41. };
  42. class FamilyManager{
  43.     public: DB dbHenEgg; 
  44.     public: FamilyManager(DBGenerator* gen){
  45.     	dbHenEgg=gen->generate();
  46.     }
  47. };
  48. int main() {
  49. 	DBGenerator commander;
  50. 	CageManager m1{&commander};
  51. 	FamilyManager m2{&commander};
  52. 	GO* hen=new GO(); 
  53. 	GO* egg=new GO();
  54. 	m2.dbHenEgg.createRelation(hen,egg);
  55. 	GO* henGet=m2.dbHenEgg.getLeft(egg);
  56. 	if(henGet==hen)std::cout<<"correct";
  57. 	if(henGet!=hen)std::cout<<"wrong";
  58. 	return 0;
  59. }
  60.  
Success #stdin #stdout 0s 15224KB
comments (?)
stdin 
Standard input is empty
stdout 
correct
https://ideone.com/OCQ4hU
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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