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#include <iostream>
using namespace std;
 
class A { 
public:
	A() {}
	explicit A(const A& a) { cout << "copy!\n"; } 
};
 
A GetA()
{
  A a = A();
  A result = a;
  return result;
}
 
int main()
{
  A b = GetA();
  A* x = &b;
  A y = *x;
  A z = b;
}

prog.cpp: In function 'A GetA()':
prog.cpp:12: error: no matching function for call to 'A::A(A)'
prog.cpp:13: error: no matching function for call to 'A::A(A&)'
prog.cpp:14: error: no matching function for call to 'A::A(A&)'
prog.cpp: In function 'int main()':
prog.cpp:19: error: no matching function for call to 'A::A(A)'
prog.cpp:21: error: no matching function for call to 'A::A(A&)'
prog.cpp:22: error: no matching function for call to 'A::A(A&)'

Standard output is empty