3.5 Efficiency of members of the object
1. Can we affirm the efficiency performance of a program without opening an optimized switch? why? (P127)
2. Is a single inheritor affect Data MEMBER's access efficiency? why? (P128)
Lessons of lippman:
Programmers should conduct actual tests if they care about the efficiency. Do not deliver or hypothesis.
Optimization operation does not necessarily work effectively.
3.6 Pointer to Data MEMBERS
1. Take a Class's Data MEMBER address, what do you mean? (P130)
2. How to distinguish a pointer that "does not point to any Data MEMBER" and a pointer pointing to "The First Data MEMBER"? (P131)
3. How is the efficiency of access data in the following three cases? Why can't it produce this? (P134-P135)
A. Access directly. B. Pointer points to Member already helped. C. Pointer points to Data MEMBER.
4. Why is virtual inheritance to impact optimization? (P136)
