NAME¶

std::basic_streambuf::pubseekpos, - std::basic_streambuf::pubseekpos,

Synopsis¶

pos_type pubseekpos( pos_type pos,
std::ios_base::openmode which = std::ios_base::in | (1)
std::ios_base::out );
protected:

virtual pos_type seekpos( pos_type pos, (2)

std::ios_base::openmode which = std::ios_base::in |
std::ios_base::out );

Sets the position indicator of the input and/or output sequence to an absolute
position.

1) Calls seekpos(pos, which) of the most derived class.
2) The base class version of this function has no effect. The derived classes may
override this function to allow absolute positioning of the position indicator.

Parameters¶

pos - absolute position to set the position indicator to
defines which of the input and/or output sequences to affect. It can be one
or a combination of the following constants:
which -
Constant Explanation
in affect the input sequence
out affect the output sequence

Return value¶

1) The return value of seekpos(pos, which).
2) The resulting absolute position as defined by the position indicator. The base
class version returns pos_type(off_type(-1)).

Example¶

This section is incomplete
Reason: no example

Defect reports

The following behavior-changing defect reports were applied retroactively to
previously published C++ standards.

DR Applied to Behavior as published Correct behavior
the base class version of seekpos
LWG 55 C++98 returned returns pos_type(off_type(-1))
an undefined invalid stream
position

See also¶

pubseekoff invokes seekoff()
(public member function)
seekpos repositions the file position, using absolute addressing
[virtual] (virtual protected member function of std::basic_filebuf<CharT,Traits>)

repositions the next pointer in the input sequence, output sequence, or
seekpos both using absolute addressing
[virtual] (virtual protected member function of
std::basic_stringbuf<CharT,Traits,Allocator>)
seekpos repositions the next pointer in the input sequence, output sequence, or
[virtual] both using absolute addressing
(virtual protected member function of std::strstreambuf)

Category:¶

* Todo no example