Re: [Boost-users] wrapping stdlib fstream with boost filtering streams

From: egoots (egoots_at_[hidden])
Date: 2007-07-05 23:57:26

Daniel Oberhoff wrote:

> 
> Two open questions that come to mind:
> 
> 1) does the compressor flush the zlib compression buffer when I flush/ 
> pop it?

As I understand it, pop() and reset() both flush and close the current 
device and then destroy it.

> 2) is fstream a bidirectional stream (my guess due to separate seekg/ 
> seekp methods) or a seekable stream (one read/write head)? Because I  
> currently require the former.
> 
> btw: the above code runs without exceptions, but when I read back  
> variables I have just written they are garbled.

You should read the thread of messages at... there may be some relevant 
info here:
http://thread.gmane.org/gmane.comp.lib.boost.user/13824

Especially the replies by Jonathan Turkanis