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(iostream-295.info)Output Position

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Enter node , (file) or (file)node

Repositioning an `ostream'
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   You can control the output position (on output streams that actually
support positions, typically files) with these methods:

 - Method: streampos ostream::tellp ()
     Return the current write position in the stream.

 - Method: ostream& ostream::seekp (streampos LOC)
     Reset the output position to LOC (which is usually the result of a
     previous call to `ostream::tellp').  LOC specifies an absolute
     position in the output stream.

 - Method: ostream& ostream::seekp (streamoff LOC, REL)
     Reset the output position to LOC, relative to the beginning, end,
     or current output position in the stream, as indicated by REL (a
     value from the enumeration `ios::seekdir'):

    `beg'
          Interpret LOC as an absolute offset from the beginning of the
          file.

    `cur'
          Interpret LOC as an offset relative to the current output
          position.

    `end'
          Interpret LOC as an offset from the current end of the output
          stream.