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struct A
{
	A() = default;
	A(const A&) = default;
	A(A&&) = delete;
};
 
A foo(const A& a)	{ return a; } 		// (1) success: use of the copy constructor
A foo(A&& a) 		{ return a; } 		// (2) success: use of the copy constructor
A foo(A a)			{ return a; } 		// (3) error: use of deleted function 'A::A(A&&)'
A foo()				{ A a; return a; } 	// (4) error: use of deleted function 'A::A(A&&)'
 
int main()
{
}

prog.cpp: In function 'A foo(A)':
prog.cpp:10:23: error: use of deleted function 'A::A(A&&)'
 A foo(A a)   { return a; }   // (3) error: use of deleted function 'A::A(A&&)'
                       ^
prog.cpp:5:2: note: declared here
  A(A&&) = delete;
  ^
prog.cpp: In function 'A foo()':
prog.cpp:11:26: error: use of deleted function 'A::A(A&&)'
 A foo()    { A a; return a; }  // (4) error: use of deleted function 'A::A(A&&)'
                          ^
prog.cpp:5:2: note: declared here
  A(A&&) = delete;
  ^

Standard output is empty