编译原理（紫龙书）中文第2版习题答案
- 前言
- Exercises for Section 1.1
- Exercises for Section 1.3
- Exercises for Section 1.6
- Exercises for Section 2.2
- Exercises for Section 2.3
- Exercises for Section 2.4
- Exercises for Section 2.6
- Exercises for Section 2.8
- 第2章要点
- Exercises for Section 3.1
- Exercises for Section 3.3
- Exercises for Section 3.4
- Exercises for Section 3.5
- Exercises for Section 3.6
- Exercises for Section 3.7
- Exercises for Section 3.8
- Exercises for Section 3.9
- 第3章要点
- Exercises for Section 4.2
- Exercises for Section 4.3
- Exercises for Section 4.4
- Exercises for Section 4.5
- Exercises for Section 4.6
- Exercises for Section 4.7
- 第4章要点
- Exercises for Section 5.1
- Exercises for Section 5.2
- Exercises for Section 5.3
- Exercises for Section 5.4
- Exercises for Section 5.5
- Exercises for Section 6.1
- Exercises for Section 6.2
- Exercises for Section 6.3
- Exercises for Section 6.4
- Exercises for Section 6.5
- Exercises for Section 6.6
- Exercises for Section 6.7
- Exercises for Section 7.2
- Exercises for Section 7.3
- Exercises for Section 7.4
- Exercises for Section 7.5
- Exercises for Section 7.6
- Exercises for Section 7.7
- Exercises for Section 8.2
- Exercises for Section 8.3
- Exercises for Section 8.4
- Exercises for Section 8.5
- Exercises for Section 12.3
Exercises for Section 7.5
7.5.1
What happens to the reference counts of the objects in Fig. 7.19 if:
- The pointer from A to B is deleted.
- The pointer from X to A is deleted.
- The node C is deleted.
Figure 7.19: A network of objects
Answer
-
The pointer from A to B is deleted.
-
The pointer from X to A is deleted.
-
The node C is deleted.
7.5.2
What happens to reference counts when the pointer from A to D in Fig. 7.20 is deleted?
Figure 7.20: Another network of objects
Answer
