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  1. namespace Rose
  2. {
  3.     template<typename T>
  4.     struct RemoveReference
  5.     {
  6.         typedef T Type;
  7.     };
  8.  
  9.     template<typename T>
  10.     struct RemoveReference<T &>
  11.     {
  12.         typedef T Type;
  13.     };
  14.  
  15.     template<typename... Elems>
  16.     class Tuple;
  17.  
  18.     template<typename First, typename... Elems>
  19.     class Tuple<First, Elems...>
  20.     {
  21.     public:
  22.         Tuple(First a, Elems... more)
  23.             : More(more...), Element(a)
  24.         {
  25.         }
  26.  
  27.         Tuple<First, Elems...> & operator=(const Tuple<typename RemoveReference<First>::Type,
  28.                                            typename RemoveReference<Elems>::Type...> & rhs)
  29.         {
  30.             this->Element = rhs.Element;
  31.             this->More = rhs.More;
  32.  
  33.             return *this;
  34.         }
  35.  
  36.     private:
  37.         Tuple<Elems...> More;
  38.         First Element;
  39.     };
  40.  
  41.     template<typename Only>
  42.     class Tuple<Only>
  43.     {
  44.     public:
  45.         Tuple(Only a) : Element(a)
  46.         {
  47.         }
  48.  
  49.         Tuple<Only> & operator=(const Tuple<typename RemoveReference<Only>::Type> & rhs)
  50.         {
  51.             this->Element = rhs.Element;
  52.  
  53.             return *this;
  54.         }
  55.  
  56.     private:
  57.         Only Element;
  58.     };
  59. }
  60.  
  61. int main()
  62. {
  63.     Rose::Tuple<int, float, int> t(1, 1.f, 2);
  64. }
Success #stdin #stdout 0s 2824KB
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https://ideone.com/qIiSg
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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