Therefore always make sure that you overload the functions for your types and do not rely on the defaults in any way.
因此请总是确认你已经为你的类型重载了以上函数，不要以任何方式依赖于缺省实现。
Therefore always make sure that you overload the functions for your types and do not rely on the defaults in any way.
因此请总是确认你已经为你的类型重载了以上函数，不要以任何方式依赖于缺省实现。
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