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Inside the C++ Object Model Stanley B. Lippman
Publisher: Addison-Wesley Professional

1,default constructor constructionA default constructor synthesiszes only when the implementation needs it.When the implementation needs it?1.1,Member class object with default constructor.1.2,B. Lippman (he worked on implementing/maintaining C-front the original C++ implementation at Bell Labs). Layout Cost for Adding Encapsulation inheritance don't have cost. 2.1 Default Constructor: 如果class没有default constructor, 那么编译器在它自己需要的时候，会为class产生一个default constructor，这时这个default constructor是nontrivial的. Re: 最近学习计划; 你好，我也很想学习C++，可不可以也把那本经典的《Inside The C++ Object Model》发给我一下啊？ 我也很想看看。 bookish_boy@163.com; --TanZek; 4. Please refer to the indepth book on C++ Internals by Stanley B. Inside The C++ Object Model: Chapter 2. ĸ�包括任何个人感情的技术类资料,Inside The C++ Object Model 读书笔记(一)：C++类内部数据结构内存空间分配. But virtual function and virtual base class will add extra cost. Data语义学：一.一个类得实际大小受到三个因素影响：1.语言本身所造成的额外负担.比如virtual ，虚基类.2.编译器对于特殊情况所提供的优化处理3.内存对齐(Alignment)的限制.