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  1. #include <iostream>
  2.  
  3. class A
  4. {
  5. public:
  6.     A(std::string str) 
  7.         : m_data(str)
  8.     {
  9.         std::cout << "Ctor" << std::endl;
  10.     }
  11.  
  12.     A(const A& rhs)
  13.     : m_data(rhs.m_data) 
  14.     { 
  15.         std::cout << "Copy ctor" << std::endl;
  16.     }
  17.  
  18.     A(A&& rhs) noexcept
  19.     : m_data(std::move(rhs.m_data))
  20.     {
  21.         std::cout << "Move ctor" << std::endl;
  22.     }
  23.  
  24.     void print()
  25.     {
  26.         std::cout << m_data << std::endl;
  27.     }
  28.  
  29. private:
  30.     std::string m_data;
  31. };
  32.  
  33.  
  34. int main()
  35. {
  36.     A one("one");
  37.     A two(one);
  38.  
  39.     A three  = std::move(one);
  40.  
  41.     one.print();
  42.     two.print();
  43.     three.print();
  44.  
  45.     return 0;
  46. }
  47.  
Success #stdin #stdout 0s 3460KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Ctor
Copy ctor
Move ctor

one
one
https://ideone.com/Emb1Sh
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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