🚀 go-pugleaf

The following program incorrectly returns a non-zero exit status because
a new call to "base_returning_function" is generated for each usage of
the reference constant "base_ref".

-------------------------------------------------------------------------
// Check that if a reference is initialized to refer to a value
// which is returned from a function call, the actual call to
// the function is only invoked for the original initialization
// of the reference, and not for each subsequent use of the
// reference.
//
// This test fails with G++ 1.35.0- (pre-release).
// Reported 4/4/89 by Kim Smith

struct base {
	int data_member;

	void function_member ();
};

base base_object;

base base_returning_function ();

int call_count = 0;

int main ()
{
	base& base_ref = base_returning_function ();

	base_ref.function_member ();
	base_ref.function_member ();
	base_ref.data_member  = 99;
	return (call_count == 1) ? 0 : 1;
}

base base_returning_function ()
{
	base local_base_object;

	call_count++;
	return local_base_object;
}

void base::function_member ()
{
}