protected virtual member function
<sstream>
streampos seekpos ( streampos sp, ios_base::openmode which = ios_base::in | ios_base::out );
Set internal position pointer to absolute position
Sets the absolute new position
sp for the position pointers specified by parameter
which.
Parameters
- sp
- New absolute position for the position pointer.
This is an object of class streampos (or traits::pos_type for other traits). streampos objects may be constructed indirectly from integral values representing a relative position from the beginning of the stream.
- which
- Determines which of the internal position pointers shall be modified: the input pointer, the output pointer, or both. It is an object of type ios_base::openmode that for this function may take any combination of the following significant constant values:
| value | position pointer affected |
|---|
| ios_base::in | input position pointer |
| ios_base::out | output position pointer |
Return Value
The new position value of the modified position pointer.
In case of error, the value returned is
-1.
Basic template member declaration
( basic_stringbuf<charT,traits,Allocator> )
1
2
|
typedef traits::pos_type pos_type;
pos_type seekpos (pos_type sp, ios_base which = ios_base::in | ios_base::out );
|
See also
- stringbuf::seekoff
- Set internal position pointer to relative position (protected virtual member function)
- streambuf::pubseekpos
- Set internal position pointer to absolute position (public member function)