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  1. #include <iostream>
  2.  
  3. #define STRING(str) #str
  4.  
  5. class Object
  6. {
  7. 	int __refs;
  8. public:
  9. 	Object() : __refs(1)
  10. 	{
  11. 	}
  12. 	virtual ~Object(){}
  13. 	int AddRef()
  14. 	{
  15. 		return this->__refs++;
  16. 	}
  17. 	void Release()
  18. 	{
  19. 		if( --this->__refs <= 0)
  20. 			delete this;
  21. 	}
  22. };
  23.  
  24.  
  25. class Resource
  26. 	: public Object
  27. {
  28. public:
  29. 	Resource() : Object()
  30. 	{
  31. 		std::cout<<STRING(Resource::Resource())<<std::endl;
  32. 	}
  33. 	~Resource()
  34. 	{
  35. 		std::cout<<STRING(Resource::~Resource())<<std::endl;
  36. 	}
  37. };
  38.  
  39.  
  40. class Factory
  41. {
  42. public:
  43. 	static Resource* CreateResource()
  44. 	{
  45. 		return new Resource();
  46. 	}
  47. };
  48.  
  49. void gimeSomeResource(Resource* res)
  50. {
  51. 	res->AddRef();
  52. 	//... work with it
  53. 	res->Release();
  54. }
  55. void moreResourceForWork(Resource* res)
  56. {
  57. 	res->AddRef();
  58. 	gimeSomeResource(res);
  59. 	gimeSomeResource(res);
  60. 	res->Release();
  61. }
  62.  
  63.  
  64. int main()
  65. {
  66.  
  67. 	Resource* someRes = Factory::CreateResource();
  68. 	gimeSomeResource(someRes);
  69. 	moreResourceForWork(someRes);
  70.  
  71. 	someRes->Release();
  72.  
  73. 	return 0;
  74. }
  75.  
Success #stdin #stdout 0s 3476KB
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Standard input is empty
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Resource::Resource()
Resource::~Resource()
https://ideone.com/U6orIS
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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