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  1. #include <iostream>
  2.  
  3. template<class T>
  4. class IQueue
  5. {
  6. protected:
  7.     T Data[10];
  8. public:
  9.     virtual const T pop()          = 0;
  10.     virtual void    push(const T&) = 0;
  11. };
  12.  
  13. template<class T>
  14. class QueueA : public IQueue<T>
  15. {
  16. public:
  17. 	const T pop() final {
  18.         std::cout << "pop queue A" << std::endl;
  19.         return T{};
  20.     }
  21.  
  22.     void push(const T& aItemRef) final {
  23.         std::cout << "PUSH queue A" << std::endl;
  24.     }
  25. };
  26.  
  27. template<class T>
  28. class QueueB : public IQueue<T>
  29. {
  30. public:
  31. 	const T pop() final {
  32.         std::cout << "pop queue B" << std::endl;
  33.         return T{};
  34.     }
  35.  
  36.     void push(const T& aItemRef) final {
  37.         std::cout << "PUSH queue B" << std::endl;
  38.     }
  39. };
  40.  
  41. template <class... Ts>
  42. struct Tester;
  43.  
  44. template <class T, class... Ts>
  45. struct Tester<T, Ts...>
  46. {
  47. 	template<class U>
  48. 	static void test_push_pop(IQueue<U>&& aQueueP)
  49. 	{
  50. 		aQueueP.push(U{});
  51. 		aQueueP.pop();
  52. 	}
  53.  
  54. 	static void test_push_pops()
  55. 	{
  56. 		test_push_pop(T{});
  57.     	Tester<Ts...>::test_push_pops();
  58. 	}
  59. };
  60.  
  61. template<>
  62. struct Tester<>
  63. {
  64. 	static void test_push_pops() {}
  65. };
  66.  
  67. template<class... Ts>
  68. void tester_queues()
  69. {
  70. 	Tester<Ts...>::test_push_pops();
  71. };
  72.  
  73. int main()
  74. {
  75.     tester_queues< QueueA<int>, QueueB<char> >();
  76.     return 0;
  77. }
Success #stdin #stdout 0s 4248KB
comments (?)
stdin
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Standard input is empty
stdout
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PUSH queue A
pop queue A
PUSH queue B
pop queue B
https://ideone.com/mJIJX6
language:
C++ 4.3.2 (gcc-4.3.2)
created:
4 years ago
visibility:
public

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