more effective c++:the difference between pointer and reference
2010-09-10 12:21
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首先，没有所谓的 nul reference 但是有 null pointers.一个reference必须总是代表某个对象。
pointers可以被重新赋值，指向另一个对象，reference却总是指向(代表)
pointers可以被重新赋值，指向另一个对象，reference却总是指向(代表)
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