Why can some operators only be overloaded as member functions, other as non-member "free" functions and the rest of them as both?Why can some operators only be overloaded as me
阅读背景：
为什么有些操作符只能作为成员函数重载，其他操作符作为朋友函数重载，其他操作符同时作为朋友函数重载?
来源：互联网
分享到：
