From ease to difficulty in Writing C ++ programs, (5) Problem: Implement random integer generation class randcreater that meets various requirements

In question (3), it is still complicated to solve the problem of random number generation. Of course, it is relatively simple to generate a common integer, but sometimes it is not just necessary. The following requirements are implemented to define some interfaces for this class. Currently, only all generated integers are required.

1. randcreater (int I) ranges from 0 ~ Within the I range

2, randcreater (int I, Int J) in I ~ Within J

3. randcreater (largeint linta) ranges from 0 ~ For the significance of largeint within the ivec range, see question (4)

4. randcreater (largeint linta, largeint lintb) in linta ~ Within the lintb range

5. There are two forms of the generated Number: (1) it can be a built-in int type, (2) it can also generate the largeint defined in (4.

The tentative interface is not suitable for modification.