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  1. int MyMinFunc(int a, int b)
  2. {
  3.     return a < b ? a : b;
  4. }
  5. int MyMaxFunc(int a, int b)
  6. {
  7.     return a > b ? a : b;
  8. }
  9.  
  10. template<typename T>
  11. class RefList
  12. {
  13.     struct Node
  14.     {
  15.         T &t;
  16.         Node *n;
  17.         Node() = delete;
  18.         Node(T &t) : t(t), n(0) {}
  19.         Node(const Node &) = delete;
  20.         Node &operator=(const Node &) = delete;
  21.         ~Node(){}
  22.     } *h;
  23. public:
  24.     RefList() : h(0) {}
  25.     RefList(const RefList &) = delete;
  26.     RefList &operator=(const RefList &) = delete;
  27.     void AddLast(T &t)
  28.     {
  29.         if(!h) h = new Node(t);
  30.         else
  31.         {
  32.             Node *n = h;
  33.             while(n->n) n = n->n;
  34.             n->n = new Node(t);
  35.         }
  36.     }
  37.     T &operator[](unsigned i)
  38.     {
  39.         if(!i) return h->t;
  40.         Node *n = h;
  41.         while(i--) n = n->n;
  42.         return n->t;
  43.     }
  44.     ~RefList()
  45.     {
  46.         while(h)
  47.         {
  48.             Node *n = h;
  49.             h = h->n;
  50.             delete n;
  51.         }
  52.     }
  53. };
  54.  
  55. #include <iostream>
  56.  
  57. int main()
  58. {
  59.     RefList<int (int, int)> MyArray;
  60.     MyArray.AddLast(MyMinFunc);
  61.     MyArray.AddLast(MyMaxFunc);
  62.     std::cout << MyArray[0](4, 7) << std::endl;
  63.     std::cout << MyArray[1](4, 7) << std::endl;
  64. }
Success #stdin #stdout 0s 3016KB
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4
7
https://ideone.com/SUK0Mf
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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