[Boost-users] iostreams and compression

From: Aljaz (aljaz.fajmut_at_[hidden])
Date: 2007-04-29 07:39:43

Hello

I've been trying to figure out another way to compress data from/to 
std::stringstream.

Here is the source how I do it now:

 std::stringstream decompressed;
 decompressed << "somestring.....";

 std::stringstream compressed;
 {
  boost::iostreams::filtering_streambuf<boost::iostreams::input> out;
  out.push(boost::iostreams::zlib_compressor());
  out.push(decompressed);
  boost::iostreams::copy(out, compressed);
 }

Is there any way around this?
I want to avoid boost::iostreams::copy because it takes 40% of this source 
execution time.
How can I compress data directly to stringstream (to compressed in this 
example) without copying it?

Thank you very much for help
Regards
Aljaz