Consider the task of writing an indexable class which automatically synchronizes its state with some external data-store (e.g. a file). In order to do this the class would need to be made aware of changes to the indexed value which might occur. Unfortunately the usual approach to overloading operator[] does not allow for this, for example...Consider the task of writing an indexable class
阅读背景：
以允许响应更新的方式重载c++下标操作符[]
来源：互联网
分享到：
