Copy Constructor

[oleg9419]

#include <iostream>

using namespace std;

class A
{
public:
 A()
 {
  cout << "default A" << endl;
 }
 
 A(const A&) //  copy constructor
 {
  cout << "copy A" << endl;
 }
 
 A f1()
 {
  A a;
  return a;
 }

};

int main()
{
 A a;
 A b =  a.f1(); //  shouldn't here be first of all the default and then copy 
                //  constructor called, please explain why it's not like that

return 0;
}

Thanks

[kbw]

See section 12.6.1 of the C++11 standard.

What you have is a case of explicit intialization. The default constructor is not called in this case.

[oleg9419]

Isn't this a copy elision ?

[kbw]

Yes, it is.