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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class A{
  5. public:
  6.     int a;
  7.  
  8.     A(int i){a = i;}
  9.  
  10.     A(const A& rhs) // copy constructor
  11.     {
  12.         a = 2;
  13.     }
  14.  
  15.     A(const A&& rhs) // move constructor
  16.     {
  17.         a = 3;
  18.     }
  19.  
  20. };
  21.  
  22. void print(A a)
  23. {
  24.     cout << a.a << endl;
  25. }
  26.  
  27. A createA()
  28. {
  29.     A a(1);
  30.     if( false )
  31.         return A(1);
  32.     else
  33.         return a;
  34. }
  35.  
  36. int main(){
  37.  
  38.     A a = createA();
  39.     print(a);// This will invoker copy constructor and output is 2 
  40.  
  41.     print(createA()); // This should invoke move constructor because this object here is rvalue right?
  42. }
  43.  
Success #stdin #stdout 0s 3296KB
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https://ideone.com/FYW62Z
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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