本文介绍了引用和对象切片的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我没有我的有效C ++与我,这是错误我这么多,我必须要求我自己的理智。给定
I don't have my Effective C++ with me and this is bugging me so much that I have to ask for my own sanity. Given
class Foo : public Bar{} void MyFunc(Bar &_input);如果我通过 Foo 我纠结于切片问题,还是我避免了?
If I pass in a Foo, am I tangling with the slicing problem or have I avoided it?
推荐答案不是一个问题,因为你传递一个引用。您不是创建一个新对象,只是让MyFunc访问原始对象。
Not a problem, because you're passing in a reference. You're not creating a new object, just letting MyFunc access the original object.
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