無法訪問 private 成員(在“std::basic_ios”類中聲明



error C2248: “std::basic_ios<_Elem,_Traits>::basic_ios”: 無法訪問 private 成員(在“std::basic_ios<_Elem,_Traits>”類中聲明)問題解決

原因好像是流對象是不允許複製，所以在傳給函數作爲參數是應該傳入引用，這樣就沒有問題了

ostream& operator<<(ostream out , myVector v)
{
	out<<"("<<v.x<<","<<v.y<<","<<v.z<<")"<<endl;
	return out ;
}

改成：

ostream& operator<<(ostream& out , myVector v)
{
out<<"("<<v.x<<","<<v.y<<","<<v.z<<")"<<endl;
return out ;
}