August 2021
Intermediate to advanced
450 pages
5h 35m
Chinese
Content preview from C++语言导学（原书第2版）
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5.2 拷贝和移动
默认情况下，我们可以拷贝对象，不论是用户自定义类型的对象还是内置类型的对象都是如此。拷贝的默认含义是逐成员的拷贝，即依次复制每个成员。例如，使用4.2.1节的complex：
因为赋值和初始化操作都是复制complex的全部两个成员，因此现在z1、z2和z3具有相同的值。
当设计一个类时，必须一直考虑对象是否会被拷贝以及如何拷贝的问题。对于简单的具体类型，逐成员的拷贝通常就是正确的拷贝语义。但对于某些复杂的具体类型，如Vector，逐成员拷贝不是正确的拷贝语义；而对于抽象类型，几乎总是如此。
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.