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  1.     #include <string>
  2.     #include <type_traits>
  3.  
  4.     template<typename T>
  5.     struct Point {
  6.         typedef T value_type;
  7.         typedef Point<T> self_type;
  8.  
  9.         value_type m_value;
  10.  
  11.         Point(value_type value) : m_value(value) {}
  12.  
  13.         template<typename RhsT>
  14.         self_type& operator = (const Point<RhsT>& rhs) {
  15.             m_value = static_cast<value_type>(rhs.m_value);
  16.             return *this;
  17.         }
  18.     };
  19.  
  20.     int main() {
  21.         Point<int> a1(4);
  22.         Point<int> a2(5);
  23.         Point<double> a3(6.0);
  24.  
  25.         a1 = a2;
  26.         a2 = a3;
  27.  
  28.         return 0;
  29.     }
Success #stdin #stdout 0s 3136KB
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https://ideone.com/w24O9s
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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