public member type
<ios> <iostream>
Type for stream seeking direction flag
Enumerated type to represent the seeking direction of a stream seeking operation.
The possible values for this type are one of the following member constants
| 成员常量 | seeking relative to |
|---|
| beg | beginning of sequence. |
| cur | current position within sequence. |
| end | end of sequence. |
These constants are defined in the ios_base class as public members. Therefore, they can be referred to either directly by their name as members of ios_base (like ios_base::beg) or by using any of their inherited classes or instantiated objects, like for example ios::end or cin.cur.